Uses of Class
java.lang.Object

Packages that use Object

Package	Description
java.applet	Provides the classes necessary to create an applet and the classes an applet uses to communicate with its applet context.
java.awt	Contains all of the classes for creating user interfaces and for painting graphics and images.
java.awt.color	Provides classes for color spaces.
java.awt.datatransfer	Provides interfaces and classes for transferring data between and within applications.
java.awt.dnd	Drag and Drop is a direct manipulation gesture found in many Graphical User Interface systems that provides a mechanism to transfer information between two entities logically associated with presentation elements in the GUI.
java.awt.event	Provides interfaces and classes for dealing with different types of events fired by AWT components.
java.awt.font	Provides classes and interface relating to fonts.
java.awt.geom	Provides the Java 2D classes for defining and performing operations on objects related to two-dimensional geometry.
java.awt.im	Provides classes and interfaces for the input method framework.
java.awt.im.spi	Provides interfaces that enable the development of input methods that can be used with any Java runtime environment.
java.awt.image	Provides classes for creating and modifying images.
java.awt.image.renderable	Provides classes and interfaces for producing rendering-independent images.
java.awt.print	Provides classes and interfaces for a general printing API.
java.beans	Contains classes related to developing beans -- components based on the JavaBeans™ architecture.
java.beans.beancontext	Provides classes and interfaces relating to bean context.
java.io	Provides for system input and output through data streams, serialization and the file system.
java.lang	Provides classes that are fundamental to the design of the Java programming language.
java.lang.annotation	Provides library support for the Java programming language annotation facility.
java.lang.instrument	Provides services that allow Java programming language agents to instrument programs running on the JVM.
java.lang.invoke	The java.lang.invoke package contains dynamic language support provided directly by the Java core class libraries and virtual machine.
java.lang.management	Provides the management interfaces for monitoring and management of the Java virtual machine and other components in the Java runtime.
java.lang.ref	Provides reference-object classes, which support a limited degree of interaction with the garbage collector.
java.lang.reflect	Provides classes and interfaces for obtaining reflective information about classes and objects.
java.math	Provides classes for performing arbitrary-precision integer arithmetic (BigInteger) and arbitrary-precision decimal arithmetic (BigDecimal).
java.net	Provides the classes for implementing networking applications.
java.nio	Defines buffers, which are containers for data, and provides an overview of the other NIO packages.
java.nio.channels	Defines channels, which represent connections to entities that are capable of performing I/O operations, such as files and sockets; defines selectors, for multiplexed, non-blocking I/O operations.
java.nio.channels.spi	Service-provider classes for the java.nio.channels package.
java.nio.charset	Defines charsets, decoders, and encoders, for translating between bytes and Unicode characters.
java.nio.charset.spi	Service-provider classes for the java.nio.charset package.
java.nio.file	Defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems.
java.nio.file.attribute	Interfaces and classes providing access to file and file system attributes.
java.nio.file.spi	Service-provider classes for the java.nio.file package.
java.rmi	Provides the RMI package.
java.rmi.activation	Provides support for RMI Object Activation.
java.rmi.dgc	Provides classes and interface for RMI distributed garbage-collection (DGC).
java.rmi.registry	Provides a class and two interfaces for the RMI registry.
java.rmi.server	Provides classes and interfaces for supporting the server side of RMI.
java.security	Provides the classes and interfaces for the security framework.
java.security.acl	The classes and interfaces in this package have been superseded by classes in the java.security package.
java.security.cert	Provides classes and interfaces for parsing and managing certificates, certificate revocation lists (CRLs), and certification paths.
java.security.spec	Provides classes and interfaces for key specifications and algorithm parameter specifications.
java.sql	Provides the API for accessing and processing data stored in a data source (usually a relational database) using the JavaTM programming language.
java.text	Provides classes and interfaces for handling text, dates, numbers, and messages in a manner independent of natural languages.
java.text.spi	Service provider classes for the classes in the java.text package.
java.util	Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
java.util.concurrent	Utility classes commonly useful in concurrent programming.
java.util.concurrent.atomic	A small toolkit of classes that support lock-free thread-safe programming on single variables.
java.util.concurrent.locks	Interfaces and classes providing a framework for locking and waiting for conditions that is distinct from built-in synchronization and monitors.
java.util.jar	Provides classes for reading and writing the JAR (Java ARchive) file format, which is based on the standard ZIP file format with an optional manifest file.
java.util.logging	Provides the classes and interfaces of the JavaTM 2 platform's core logging facilities.
java.util.prefs	This package allows applications to store and retrieve user and system preference and configuration data.
java.util.regex	Classes for matching character sequences against patterns specified by regular expressions.
java.util.spi	Service provider classes for the classes in the java.util package.
java.util.zip	Provides classes for reading and writing the standard ZIP and GZIP file formats.
javax.accessibility	Defines a contract between user-interface components and an assistive technology that provides access to those components.
javax.activation
javax.activity	Contains Activity service related exceptions thrown by the ORB machinery during unmarshalling.
javax.annotation.processing	Facilities for declaring annotation processors and for allowing annotation processors to communicate with an annotation processing tool environment.
javax.crypto	Provides the classes and interfaces for cryptographic operations.
javax.crypto.spec	Provides classes and interfaces for key specifications and algorithm parameter specifications.
javax.imageio	The main package of the Java Image I/O API.
javax.imageio.metadata	A package of the Java Image I/O API dealing with reading and writing metadata.
javax.imageio.plugins.bmp	Package containing the public classes used by the built-in BMP plug-in.
javax.imageio.plugins.jpeg	Classes supporting the built-in JPEG plug-in.
javax.imageio.spi	A package of the Java Image I/O API containing the plug-in interfaces for readers, writers, transcoders, and streams, and a runtime registry.
javax.imageio.stream	A package of the Java Image I/O API dealing with low-level I/O from files and streams.
javax.lang.model	Classes and hierarchies of packages used to model the Java programming language.
javax.lang.model.element	Interfaces used to model elements of the Java programming language.
javax.lang.model.type	Interfaces used to model Java programming language types.
javax.lang.model.util	Utilities to assist in the processing of program elements and types.
javax.management	Provides the core classes for the Java Management Extensions.
javax.management.loading	Provides the classes which implement advanced dynamic loading.
javax.management.modelmbean	Provides the definition of the ModelMBean classes.
javax.management.monitor	Provides the definition of the monitor classes.
javax.management.openmbean	Provides the open data types and Open MBean descriptor classes.
javax.management.relation	Provides the definition of the Relation Service.
javax.management.remote	Interfaces for remote access to JMX MBean servers.
javax.management.remote.rmi	The RMI connector is a connector for the JMX Remote API that uses RMI to transmit client requests to a remote MBean server.
javax.management.timer	Provides the definition of the Timer MBean.
javax.naming	Provides the classes and interfaces for accessing naming services.
javax.naming.directory	Extends the javax.naming package to provide functionality for accessing directory services.
javax.naming.event	Provides support for event notification when accessing naming and directory services.
javax.naming.ldap	Provides support for LDAPv3 extended operations and controls.
javax.naming.spi
javax.net	Provides classes for networking applications.
javax.net.ssl	Provides classes for the secure socket package.
javax.print	Provides the principal classes and interfaces for the JavaTM Print Service API.
javax.print.attribute	Provides classes and interfaces that describe the types of JavaTM Print Service attributes and how they can be collected into attribute sets.
javax.print.attribute.standard	Package javax.print.attribute.standard contains classes for specific printing attributes.
javax.print.event	Package javax.print.event contains event classes and listener interfaces.
javax.rmi	Contains user APIs for RMI-IIOP.
javax.rmi.CORBA	Contains portability APIs for RMI-IIOP.
javax.rmi.ssl	Provides implementations of RMIClientSocketFactory and RMIServerSocketFactory over the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols.
javax.script	The scripting API consists of interfaces and classes that define Java TM Scripting Engines and provides a framework for their use in Java applications.
javax.security.auth	This package provides a framework for authentication and authorization.
javax.security.auth.callback	This package provides the classes necessary for services to interact with applications in order to retrieve information (authentication data including usernames or passwords, for example) or to display information (error and warning messages, for example).
javax.security.auth.kerberos	This package contains utility classes related to the Kerberos network authentication protocol.
javax.security.auth.login	This package provides a pluggable authentication framework.
javax.security.auth.x500	This package contains the classes that should be used to store X500 Principal and X500 Private Crendentials in a Subject.
javax.security.cert	Provides classes for public key certificates.
javax.security.sasl	Contains class and interfaces for supporting SASL.
javax.sound.midi	Provides interfaces and classes for I/O, sequencing, and synthesis of MIDI (Musical Instrument Digital Interface) data.
javax.sound.midi.spi	Supplies interfaces for service providers to implement when offering new MIDI devices, MIDI file readers and writers, or sound bank readers.
javax.sound.sampled	Provides interfaces and classes for capture, processing, and playback of sampled audio data.
javax.sound.sampled.spi	Supplies abstract classes for service providers to subclass when offering new audio devices, sound file readers and writers, or audio format converters.
javax.sql	Provides the API for server side data source access and processing from the JavaTM programming language.
javax.sql.rowset	Standard interfaces and base classes for JDBC RowSet implementations.
javax.sql.rowset.serial	Provides utility classes to allow serializable mappings between SQL types and data types in the Java programming language.
javax.sql.rowset.spi	The standard classes and interfaces that a third party vendor has to use in its implementation of a synchronization provider.
javax.swing	Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.
javax.swing.border	Provides classes and interface for drawing specialized borders around a Swing component.
javax.swing.colorchooser	Contains classes and interfaces used by the JColorChooser component.
javax.swing.event	Provides for events fired by Swing components.
javax.swing.filechooser	Contains classes and interfaces used by the JFileChooser component.
javax.swing.plaf	Provides one interface and many abstract classes that Swing uses to provide its pluggable look-and-feel capabilities.
javax.swing.plaf.basic	Provides user interface objects built according to the Basic look and feel.
javax.swing.plaf.metal	Provides user interface objects built according to the Java look and feel (once codenamed Metal), which is the default look and feel.
javax.swing.plaf.multi	Provides user interface objects that combine two or more look and feels.
javax.swing.plaf.nimbus	Provides user interface objects built according to the cross-platform Nimbus look and feel.
javax.swing.plaf.synth	Synth is a skinnable look and feel in which all painting is delegated.
javax.swing.table	Provides classes and interfaces for dealing with javax.swing.JTable.
javax.swing.text	Provides classes and interfaces that deal with editable and noneditable text components.
javax.swing.text.html	Provides the class HTMLEditorKit and supporting classes for creating HTML text editors.
javax.swing.text.html.parser	Provides the default HTML parser, along with support classes.
javax.swing.text.rtf	Provides a class (RTFEditorKit) for creating Rich-Text-Format text editors.
javax.swing.tree	Provides classes and interfaces for dealing with javax.swing.JTree.
javax.swing.undo	Allows developers to provide support for undo/redo in applications such as text editors.
javax.tools	Provides interfaces for tools which can be invoked from a program, for example, compilers.
javax.transaction	Contains three exceptions thrown by the ORB machinery during unmarshalling.
javax.transaction.xa	Provides the API that defines the contract between the transaction manager and the resource manager, which allows the transaction manager to enlist and delist resource objects (supplied by the resource manager driver) in JTA transactions.
javax.xml
javax.xml.bind	Provides a runtime binding framework for client applications including unmarshalling, marshalling, and validation capabilities.
javax.xml.bind.annotation	Defines annotations for customizing Java program elements to XML Schema mapping.
javax.xml.bind.annotation.adapters	XmlAdapter and its spec-defined sub-classes to allow arbitrary Java classes to be used with JAXB.
javax.xml.bind.attachment	This package is implemented by a MIME-based package processor that enables the interpretation and creation of optimized binary data within an MIME-based package format.
javax.xml.bind.helpers	JAXB Provider Use Only: Provides partial default implementations for some of the javax.xml.bind interfaces.
javax.xml.bind.util	Useful client utility classes.
javax.xml.crypto	Common classes for XML cryptography.
javax.xml.crypto.dom	DOM-specific classes for the javax.xml.crypto package.
javax.xml.crypto.dsig	Classes for generating and validating XML digital signatures.
javax.xml.crypto.dsig.dom	DOM-specific classes for the javax.xml.crypto.dsig package.
javax.xml.crypto.dsig.keyinfo	Classes for parsing and processing KeyInfo elements and structures.
javax.xml.crypto.dsig.spec	Parameter classes for XML digital signatures.
javax.xml.datatype	XML/Java Type Mappings.
javax.xml.namespace	XML Namespace processing.
javax.xml.parsers	Provides classes allowing the processing of XML documents.
javax.xml.soap	Provides the API for creating and building SOAP messages.
javax.xml.stream
javax.xml.stream.events
javax.xml.stream.util
javax.xml.transform	This package defines the generic APIs for processing transformation instructions, and performing a transformation from source to result.
javax.xml.transform.dom	This package implements DOM-specific transformation APIs.
javax.xml.transform.sax	This package implements SAX2-specific transformation APIs.
javax.xml.transform.stax	Provides for StAX-specific transformation APIs.
javax.xml.transform.stream	This package implements stream- and URI- specific transformation APIs.
javax.xml.validation	This package provides an API for validation of XML documents.
javax.xml.ws	This package contains the core JAX-WS APIs.
javax.xml.ws.handler.soap	This package defines APIs for SOAP message handlers.
javax.xml.ws.http	This package defines APIs specific to the HTTP binding.
javax.xml.ws.soap	This package defines APIs specific to the SOAP binding.
javax.xml.ws.spi	This package defines SPIs for JAX-WS.
javax.xml.ws.spi.http	Provides HTTP SPI that is used for portable deployment of JAX-WS web services in containers(for e.g.
javax.xml.ws.wsaddressing	This package defines APIs related to WS-Addressing.
javax.xml.xpath	This package provides an object-model neutral API for the evaluation of XPath expressions and access to the evaluation environment.
org.ietf.jgss	This package presents a framework that allows application developers to make use of security services like authentication, data integrity and data confidentiality from a variety of underlying security mechanisms like Kerberos, using a unified API.
org.omg.CORBA	Provides the mapping of the OMG CORBA APIs to the JavaTM programming language, including the class ORB, which is implemented so that a programmer can use it as a fully-functional Object Request Broker (ORB).
org.omg.CORBA_2_3	The CORBA_2_3 package defines additions to existing CORBA interfaces in the Java[tm] Standard Edition 6. These changes occurred in recent revisions to the CORBA API defined by the OMG. The new methods were added to interfaces derived from the corresponding interfaces in the CORBA package. This provides backward compatibility and avoids breaking the JCK tests.
org.omg.CORBA_2_3.portable	Provides methods for the input and output of value types, and contains other updates to the org/omg/CORBA/portable package.
org.omg.CORBA.DynAnyPackage	Provides the exceptions used with the DynAny interface (InvalidValue, Invalid, InvalidSeq, and TypeMismatch).
org.omg.CORBA.ORBPackage	Provides the exception InvalidName, which is thrown by the method ORB.resolve_initial_references and the exception InconsistentTypeCode, which is thrown by the Dynamic Any creation methods in the ORB class.
org.omg.CORBA.portable	Provides a portability layer, that is, a set of ORB APIs that makes it possible for code generated by one vendor to run on another vendor's ORB.
org.omg.CORBA.TypeCodePackage	Provides the user-defined exceptions BadKind and Bounds, which are thrown by methods in in the class TypeCode.
org.omg.CosNaming	Provides a naming service for Java IDL.
org.omg.CosNaming.NamingContextExtPackage	This package contains the following classes, which are used in org.omg.CosNaming.NamingContextExt:
org.omg.CosNaming.NamingContextPackage	This package contains Exception classes for the org.omg.CosNaming package.
org.omg.Dynamic	This package contains the Dynamic module specified in the OMG Portable Interceptor specification, http://cgi.omg.org/cgi-bin/doc?ptc/2000-08-06, section 21.9.
org.omg.DynamicAny	Provides classes and interfaces that enable traversal of the data value associated with an any at runtime, and extraction of the primitive constituents of the data value.
org.omg.DynamicAny.DynAnyFactoryPackage	This package contains classes and exceptions from the DynAnyFactory interface of the DynamicAny module specified in the OMG The Common Object Request Broker: Architecture and Specification, http://cgi.omg.org/cgi-bin/doc?formal/99-10-07, section 9.2.2.
org.omg.DynamicAny.DynAnyPackage	This package contains classes and exceptions from the DynAny interface of the DynamicAny module specified in the OMG The Common Object Request Broker: Architecture and Specification, http://cgi.omg.org/cgi-bin/doc?formal/99-10-07, section 9.2.
org.omg.IOP	This package contains the IOP module specified in the OMG document The Common Object Request Broker: Architecture and Specification, http://cgi.omg.org/cgi-bin/doc?formal/99-10-07, section 13.6.
org.omg.IOP.CodecFactoryPackage	This package contains the exceptions specified in the IOP::CodeFactory interface (as part of the Portable Interceptors spec).
org.omg.IOP.CodecPackage	This package is generated from the IOP::Codec IDL interface definition.
org.omg.Messaging	This package contains the Messaging module specified in the OMG CORBA Messaging specification, http://cgi.omg.org/cgi-bin/doc?formal/99-10-07.
org.omg.PortableInterceptor	Provides a mechanism to register ORB hooks through which ORB services can intercept the normal flow of execution of the ORB.
org.omg.PortableInterceptor.ORBInitInfoPackage	This package contains the exceptions and typedefs from the ORBInitInfo local interface of the PortableInterceptor module specified in the OMG Portable Interceptor specification, http://cgi.omg.org/cgi-bin/doc?ptc/2000-08-06, section 21.7.2.
org.omg.PortableServer	Provides classes and interfaces for making the server side of your applications portable across multivendor ORBs.
org.omg.PortableServer.CurrentPackage	Provides method implementations with access to the identity of the object on which the method was invoked.
org.omg.PortableServer.POAManagerPackage	Encapsulates the processing state of the POAs it is associated with.
org.omg.PortableServer.POAPackage	Allows programmers to construct object implementations that are portable between different ORB products.
org.omg.PortableServer.ServantLocatorPackage	Provides classes and interfaces for locating the servant.
org.omg.stub.java.rmi	Contains RMI-IIOP Stubs for the Remote types that occur in the java.rmi package.
org.w3c.dom	Provides the interfaces for the Document Object Model (DOM) which is a component API of the Java API for XML Processing.
org.w3c.dom.bootstrap
org.w3c.dom.events
org.w3c.dom.ls
org.xml.sax	This package provides the core SAX APIs.
org.xml.sax.ext	This package contains interfaces to SAX2 facilities that conformant SAX drivers won't necessarily support.
org.xml.sax.helpers	This package contains "helper" classes, including support for bootstrapping SAX-based applications.

Uses of Object in java.applet

Subclasses of Object in java.applet

Modifier and Type	Class and Description
class	Applet An applet is a small program that is intended not to be run on its own, but rather to be embedded inside another application.
protected class	Applet.AccessibleApplet This class implements accessibility support for the Applet class.

Uses of Object in java.awt

Subclasses of Object in java.awt

Modifier and Type	Class and Description
class	AlphaComposite The AlphaComposite class implements basic alpha compositing rules for combining source and destination colors to achieve blending and transparency effects with graphics and images.
class	AWTError Thrown when a serious Abstract Window Toolkit error has occurred.
class	AWTEvent The root event class for all AWT events.
class	AWTEventMulticaster AWTEventMulticaster implements efficient and thread-safe multi-cast event dispatching for the AWT events defined in the java.awt.event package.
class	AWTException Signals that an Absract Window Toolkit exception has occurred.
class	AWTKeyStroke An AWTKeyStroke represents a key action on the keyboard, or equivalent input device.
class	AWTPermission This class is for AWT permissions.
class	BasicStroke The BasicStroke class defines a basic set of rendering attributes for the outlines of graphics primitives, which are rendered with a Graphics2D object that has its Stroke attribute set to this BasicStroke.
class	BorderLayout A border layout lays out a container, arranging and resizing its components to fit in five regions: north, south, east, west, and center.
class	BufferCapabilities Capabilities and properties of buffers.
static class	BufferCapabilities.FlipContents A type-safe enumeration of the possible back buffer contents after page-flipping
class	Button This class creates a labeled button.
protected class	Button.AccessibleAWTButton This class implements accessibility support for the Button class.
class	Canvas A Canvas component represents a blank rectangular area of the screen onto which the application can draw or from which the application can trap input events from the user.
protected class	Canvas.AccessibleAWTCanvas This class implements accessibility support for the Canvas class.
class	CardLayout A CardLayout object is a layout manager for a container.
class	Checkbox A check box is a graphical component that can be in either an "on" (true) or "off" (false) state.
protected class	Checkbox.AccessibleAWTCheckbox This class implements accessibility support for the Checkbox class.
class	CheckboxGroup The CheckboxGroup class is used to group together a set of Checkbox buttons.
class	CheckboxMenuItem This class represents a check box that can be included in a menu.
protected class	CheckboxMenuItem.AccessibleAWTCheckboxMenuItem Inner class of CheckboxMenuItem used to provide default support for accessibility.
class	Choice The Choice class presents a pop-up menu of choices.
protected class	Choice.AccessibleAWTChoice This class implements accessibility support for the Choice class.
class	Color The Color class is used to encapsulate colors in the default sRGB color space or colors in arbitrary color spaces identified by a ColorSpace.
class	Component A component is an object having a graphical representation that can be displayed on the screen and that can interact with the user.
protected class	Component.AccessibleAWTComponent Inner class of Component used to provide default support for accessibility.
protected class	Component.AccessibleAWTComponent.AccessibleAWTComponentHandler Fire PropertyChange listener, if one is registered, when shown/hidden..
protected class	Component.AccessibleAWTComponent.AccessibleAWTFocusHandler Fire PropertyChange listener, if one is registered, when focus events happen
protected class	Component.BltBufferStrategy Inner class for blitting offscreen surfaces to a component.
protected class	Component.FlipBufferStrategy Inner class for flipping buffers on a component.
class	ComponentOrientation The ComponentOrientation class encapsulates the language-sensitive orientation that is to be used to order the elements of a component or of text.
class	Container A generic Abstract Window Toolkit(AWT) container object is a component that can contain other AWT components.
protected class	Container.AccessibleAWTContainer Inner class of Container used to provide default support for accessibility.
protected class	Container.AccessibleAWTContainer.AccessibleContainerHandler Fire PropertyChange listener, if one is registered, when children are added or removed.
class	ContainerOrderFocusTraversalPolicy A FocusTraversalPolicy that determines traversal order based on the order of child Components in a Container.
class	Cursor A class to encapsulate the bitmap representation of the mouse cursor.
class	DefaultFocusTraversalPolicy A FocusTraversalPolicy that determines traversal order based on the order of child Components in a Container.
class	DefaultKeyboardFocusManager The default KeyboardFocusManager for AWT applications.
class	Desktop The Desktop class allows a Java application to launch associated applications registered on the native desktop to handle a URI or a file.
class	Dialog A Dialog is a top-level window with a title and a border that is typically used to take some form of input from the user.
protected class	Dialog.AccessibleAWTDialog This class implements accessibility support for the Dialog class.
class	Dimension The Dimension class encapsulates the width and height of a component (in integer precision) in a single object.
class	DisplayMode The DisplayMode class encapsulates the bit depth, height, width, and refresh rate of a GraphicsDevice.
class	Event NOTE: The Event class is obsolete and is available only for backwards compatilibility.
class	EventQueue EventQueue is a platform-independent class that queues events, both from the underlying peer classes and from trusted application classes.
class	FileDialog The FileDialog class displays a dialog window from which the user can select a file.
class	FlowLayout A flow layout arranges components in a directional flow, much like lines of text in a paragraph.
class	FocusTraversalPolicy A FocusTraversalPolicy defines the order in which Components with a particular focus cycle root are traversed.
class	Font The Font class represents fonts, which are used to render text in a visible way.
class	FontFormatException Thrown by method createFont in the Font class to indicate that the specified font is bad.
class	FontMetrics The FontMetrics class defines a font metrics object, which encapsulates information about the rendering of a particular font on a particular screen.
class	Frame A Frame is a top-level window with a title and a border.
protected class	Frame.AccessibleAWTFrame This class implements accessibility support for the Frame class.
class	GradientPaint The GradientPaint class provides a way to fill a Shape with a linear color gradient pattern.
class	Graphics The Graphics class is the abstract base class for all graphics contexts that allow an application to draw onto components that are realized on various devices, as well as onto off-screen images.
class	Graphics2D This Graphics2D class extends the Graphics class to provide more sophisticated control over geometry, coordinate transformations, color management, and text layout.
class	GraphicsConfigTemplate The GraphicsConfigTemplate class is used to obtain a valid GraphicsConfiguration.
class	GraphicsConfiguration The GraphicsConfiguration class describes the characteristics of a graphics destination such as a printer or monitor.
class	GraphicsDevice The GraphicsDevice class describes the graphics devices that might be available in a particular graphics environment.
class	GraphicsEnvironment The GraphicsEnvironment class describes the collection of GraphicsDevice objects and Font objects available to a Java(tm) application on a particular platform.
class	GridBagConstraints The GridBagConstraints class specifies constraints for components that are laid out using the GridBagLayout class.
class	GridBagLayout The GridBagLayout class is a flexible layout manager that aligns components vertically, horizontally or along their baseline without requiring that the components be of the same size.
class	GridBagLayoutInfo The GridBagLayoutInfo is an utility class for GridBagLayout layout manager.
class	GridLayout The GridLayout class is a layout manager that lays out a container's components in a rectangular grid.
class	HeadlessException Thrown when code that is dependent on a keyboard, display, or mouse is called in an environment that does not support a keyboard, display, or mouse.
class	IllegalComponentStateException Signals that an AWT component is not in an appropriate state for the requested operation.
class	Image The abstract class Image is the superclass of all classes that represent graphical images.
class	ImageCapabilities Capabilities and properties of images.
class	Insets An Insets object is a representation of the borders of a container.
class	JobAttributes A set of attributes which control a print job.
static class	JobAttributes.DefaultSelectionType A type-safe enumeration of possible default selection states.
static class	JobAttributes.DestinationType A type-safe enumeration of possible job destinations.
static class	JobAttributes.DialogType A type-safe enumeration of possible dialogs to display to the user.
static class	JobAttributes.MultipleDocumentHandlingType A type-safe enumeration of possible multiple copy handling states.
static class	JobAttributes.SidesType A type-safe enumeration of possible multi-page impositions.
class	KeyboardFocusManager The KeyboardFocusManager is responsible for managing the active and focused Windows, and the current focus owner.
class	Label A Label object is a component for placing text in a container.
protected class	Label.AccessibleAWTLabel This class implements accessibility support for the Label class.
class	LinearGradientPaint The LinearGradientPaint class provides a way to fill a Shape with a linear color gradient pattern.
class	List The List component presents the user with a scrolling list of text items.
protected class	List.AccessibleAWTList This class implements accessibility support for the List class.
protected class	List.AccessibleAWTList.AccessibleAWTListChild This class implements accessibility support for List children.
class	MediaTracker The MediaTracker class is a utility class to track the status of a number of media objects.
class	Menu A Menu object is a pull-down menu component that is deployed from a menu bar.
protected class	Menu.AccessibleAWTMenu Inner class of Menu used to provide default support for accessibility.
class	MenuBar The MenuBar class encapsulates the platform's concept of a menu bar bound to a frame.
protected class	MenuBar.AccessibleAWTMenuBar Inner class of MenuBar used to provide default support for accessibility.
class	MenuComponent The abstract class MenuComponent is the superclass of all menu-related components.
protected class	MenuComponent.AccessibleAWTMenuComponent Inner class of MenuComponent used to provide default support for accessibility.
class	MenuItem All items in a menu must belong to the class MenuItem, or one of its subclasses.
protected class	MenuItem.AccessibleAWTMenuItem Inner class of MenuItem used to provide default support for accessibility.
class	MenuShortcut The MenuShortcutclass represents a keyboard accelerator for a MenuItem.
class	MouseInfo MouseInfo provides methods for getting information about the mouse, such as mouse pointer location and the number of mouse buttons.
class	MultipleGradientPaint This is the superclass for Paints which use a multiple color gradient to fill in their raster.
class	PageAttributes A set of attributes which control the output of a printed page.
static class	PageAttributes.ColorType A type-safe enumeration of possible color states.
static class	PageAttributes.MediaType A type-safe enumeration of possible paper sizes.
static class	PageAttributes.OrientationRequestedType A type-safe enumeration of possible orientations.
static class	PageAttributes.OriginType A type-safe enumeration of possible origins.
static class	PageAttributes.PrintQualityType A type-safe enumeration of possible print qualities.
class	Panel Panel is the simplest container class.
protected class	Panel.AccessibleAWTPanel This class implements accessibility support for the Panel class.
class	Point A point representing a location in (x,y) coordinate space, specified in integer precision.
class	PointerInfo A class that describes the pointer position.
class	Polygon The Polygon class encapsulates a description of a closed, two-dimensional region within a coordinate space.
class	PopupMenu A class that implements a menu which can be dynamically popped up at a specified position within a component.
protected class	PopupMenu.AccessibleAWTPopupMenu Inner class of PopupMenu used to provide default support for accessibility.
class	PrintJob An abstract class which initiates and executes a print job.
class	RadialGradientPaint The RadialGradientPaint class provides a way to fill a shape with a circular radial color gradient pattern.
class	Rectangle A Rectangle specifies an area in a coordinate space that is enclosed by the Rectangle object's upper-left point (x,y) in the coordinate space, its width, and its height.
class	RenderingHints The RenderingHints class defines and manages collections of keys and associated values which allow an application to provide input into the choice of algorithms used by other classes which perform rendering and image manipulation services.
static class	RenderingHints.Key Defines the base type of all keys used along with the RenderingHints class to control various algorithm choices in the rendering and imaging pipelines.
class	Robot This class is used to generate native system input events for the purposes of test automation, self-running demos, and other applications where control of the mouse and keyboard is needed.
class	Scrollbar The Scrollbar class embodies a scroll bar, a familiar user-interface object.
protected class	Scrollbar.AccessibleAWTScrollBar This class implements accessibility support for the Scrollbar class.
class	ScrollPane A container class which implements automatic horizontal and/or vertical scrolling for a single child component.
protected class	ScrollPane.AccessibleAWTScrollPane This class implements accessibility support for the ScrollPane class.
class	ScrollPaneAdjustable This class represents the state of a horizontal or vertical scrollbar of a ScrollPane.
class	SplashScreen The splash screen can be displayed at application startup, before the Java Virtual Machine (JVM) starts.
class	SystemColor A class to encapsulate symbolic colors representing the color of native GUI objects on a system.
class	SystemTray The SystemTray class represents the system tray for a desktop.
class	TextArea A TextArea object is a multi-line region that displays text.
protected class	TextArea.AccessibleAWTTextArea This class implements accessibility support for the TextArea class.
class	TextComponent The TextComponent class is the superclass of any component that allows the editing of some text.
protected class	TextComponent.AccessibleAWTTextComponent This class implements accessibility support for the TextComponent class.
class	TextField A TextField object is a text component that allows for the editing of a single line of text.
protected class	TextField.AccessibleAWTTextField This class implements accessibility support for the TextField class.
class	TexturePaint The TexturePaint class provides a way to fill a Shape with a texture that is specified as a BufferedImage.
class	Toolkit This class is the abstract superclass of all actual implementations of the Abstract Window Toolkit.
class	TrayIcon A TrayIcon object represents a tray icon that can be added to the system tray.
class	Window A Window object is a top-level window with no borders and no menubar.
protected class	Window.AccessibleAWTWindow This class implements accessibility support for the Window class.

Fields in java.awt declared as Object

Modifier and Type	Field and Description
Object	Event.arg An arbitrary argument of the event.
Object	Event.target The target component.
static Object	Image.UndefinedProperty The UndefinedProperty object should be returned whenever a property which was not defined for a particular image is fetched.
static Object	RenderingHints.VALUE_ALPHA_INTERPOLATION_DEFAULT Alpha interpolation hint value -- alpha blending algorithms are chosen by the implementation for a good tradeoff of performance vs.
static Object	RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY Alpha interpolation hint value -- alpha blending algorithms are chosen with a preference for precision and visual quality.
static Object	RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED Alpha interpolation hint value -- alpha blending algorithms are chosen with a preference for calculation speed.
static Object	RenderingHints.VALUE_ANTIALIAS_DEFAULT Antialiasing hint value -- rendering is done with a default antialiasing mode chosen by the implementation.
static Object	RenderingHints.VALUE_ANTIALIAS_OFF Antialiasing hint value -- rendering is done without antialiasing.
static Object	RenderingHints.VALUE_ANTIALIAS_ON Antialiasing hint value -- rendering is done with antialiasing.
static Object	RenderingHints.VALUE_COLOR_RENDER_DEFAULT Color rendering hint value -- perform color conversion calculations as chosen by the implementation to represent the best available tradeoff between performance and accuracy.
static Object	RenderingHints.VALUE_COLOR_RENDER_QUALITY Color rendering hint value -- perform the color conversion calculations with the highest accuracy and visual quality.
static Object	RenderingHints.VALUE_COLOR_RENDER_SPEED Color rendering hint value -- perform the fastest color conversion to the format of the output device.
static Object	RenderingHints.VALUE_DITHER_DEFAULT Dithering hint value -- use a default for dithering chosen by the implementation.
static Object	RenderingHints.VALUE_DITHER_DISABLE Dithering hint value -- do not dither when rendering geometry.
static Object	RenderingHints.VALUE_DITHER_ENABLE Dithering hint value -- dither when rendering geometry, if needed.
static Object	RenderingHints.VALUE_FRACTIONALMETRICS_DEFAULT Font fractional metrics hint value -- character glyphs are positioned with accuracy chosen by the implementation.
static Object	RenderingHints.VALUE_FRACTIONALMETRICS_OFF Font fractional metrics hint value -- character glyphs are positioned with advance widths rounded to pixel boundaries.
static Object	RenderingHints.VALUE_FRACTIONALMETRICS_ON Font fractional metrics hint value -- character glyphs are positioned with sub-pixel accuracy.
static Object	RenderingHints.VALUE_INTERPOLATION_BICUBIC Interpolation hint value -- the color samples of 9 nearby integer coordinate samples in the image are interpolated using a cubic function in both X and Y to produce a color sample.
static Object	RenderingHints.VALUE_INTERPOLATION_BILINEAR Interpolation hint value -- the color samples of the 4 nearest neighboring integer coordinate samples in the image are interpolated linearly to produce a color sample.
static Object	RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR Interpolation hint value -- the color sample of the nearest neighboring integer coordinate sample in the image is used.
static Object	RenderingHints.VALUE_RENDER_DEFAULT Rendering hint value -- rendering algorithms are chosen by the implementation for a good tradeoff of performance vs.
static Object	RenderingHints.VALUE_RENDER_QUALITY Rendering hint value -- rendering algorithms are chosen with a preference for output quality.
static Object	RenderingHints.VALUE_RENDER_SPEED Rendering hint value -- rendering algorithms are chosen with a preference for output speed.
static Object	RenderingHints.VALUE_STROKE_DEFAULT Stroke normalization control hint value -- geometry may be modified or left pure depending on the tradeoffs in a given implementation.
static Object	RenderingHints.VALUE_STROKE_NORMALIZE Stroke normalization control hint value -- geometry should be normalized to improve uniformity or spacing of lines and overall aesthetics.
static Object	RenderingHints.VALUE_STROKE_PURE Stroke normalization control hint value -- geometry should be left unmodified and rendered with sub-pixel accuracy.
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_DEFAULT Text antialiasing hint value -- text rendering is done according to the RenderingHints.KEY_ANTIALIASING hint or a default chosen by the implementation.
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_GASP Text antialiasing hint value -- text rendering is requested to use information in the font resource which specifies for each point size whether to apply RenderingHints.VALUE_TEXT_ANTIALIAS_ON or RenderingHints.VALUE_TEXT_ANTIALIAS_OFF.
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HBGR Text antialiasing hint value -- request that text be displayed optimised for an LCD display with subpixels in order from display left to right of B,G,R such that the horizontal subpixel resolution is three times that of the full pixel horizontal resolution (HBGR).
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB Text antialiasing hint value -- request that text be displayed optimised for an LCD display with subpixels in order from display left to right of R,G,B such that the horizontal subpixel resolution is three times that of the full pixel horizontal resolution (HRGB).
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VBGR Text antialiasing hint value -- request that text be displayed optimised for an LCD display with subpixel organisation from display top to bottom of B,G,R such that the vertical subpixel resolution is three times that of the full pixel vertical resolution (VBGR).
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VRGB Text antialiasing hint value -- request that text be displayed optimised for an LCD display with subpixel organisation from display top to bottom of R,G,B such that the vertical subpixel resolution is three times that of the full pixel vertical resolution (VRGB).
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_OFF Text antialiasing hint value -- text rendering is done without any form of antialiasing.
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_ON Text antialiasing hint value -- text rendering is done with some form of antialiasing.

Fields in java.awt with type parameters of type Object

Modifier and Type	Field and Description
protected Map<String,Object>	Toolkit.desktopProperties

Methods in java.awt that return Object

Modifier and Type	Method and Description
Object	ImageCapabilities.clone()
Object	RenderingHints.clone() Creates a clone of this RenderingHints object that has the same contents as this RenderingHints object.
Object	PageAttributes.clone() Creates and returns a copy of this PageAttributes.
Object	JobAttributes.clone() Creates and returns a copy of this JobAttributes.
Object	Insets.clone() Create a copy of this object.
Object	BufferCapabilities.clone()
Object	GridBagConstraints.clone() Creates a copy of this grid bag constraint.
Object	RenderingHints.get(Object key) Returns the value to which the specified key is mapped.
Object	BorderLayout.getConstraints(Component comp) Gets the constraints for the specified component
Object	Toolkit.getDesktopProperty(String propertyName) Obtains a value for the specified desktop property.
Object[]	MediaTracker.getErrorsAny() Returns a list of all media that have encountered an error.
Object[]	MediaTracker.getErrorsID(int id) Returns a list of media with the specified ID that have encountered an error.
abstract Object	Image.getProperty(String name, ImageObserver observer) Gets a property of this image by name.
abstract Object	Graphics2D.getRenderingHint(RenderingHints.Key hintKey) Returns the value of a single preference for the rendering algorithms.
Object[]	List.getSelectedObjects() Gets the selected items on this scrolling list in an array of Objects.
Object[]	ItemSelectable.getSelectedObjects() Returns the selected items or null if no items are selected.
Object[]	Checkbox.getSelectedObjects() Returns an array (length 1) containing the checkbox label or null if the checkbox is not selected.
Object[]	Choice.getSelectedObjects() Returns an array (length 1) containing the currently selected item.
Object[]	CheckboxMenuItem.getSelectedObjects() Returns the an array (length 1) containing the checkbox menu item label or null if the checkbox is not selected.
protected Object	MenuComponent.getTreeLock() Gets this component's locking object (the object that owns the thread sychronization monitor) for AWT component-tree and layout operations.
Object	Component.getTreeLock() Gets this component's locking object (the object that owns the thread synchronization monitor) for AWT component-tree and layout operations.
protected Object	Toolkit.lazilyLoadDesktopProperty(String name) an opportunity to lazily evaluate desktop property values.
Object	RenderingHints.put(Object key, Object value) Maps the specified key to the specified value in this RenderingHints object.
protected Object	AWTKeyStroke.readResolve() Returns a cached instance of AWTKeyStroke (or a subclass of AWTKeyStroke) which is equal to this instance.
Object	RenderingHints.remove(Object key) Removes the key and its corresponding value from this RenderingHints object.

Methods in java.awt that return types with arguments of type Object

Modifier and Type	Method and Description
Set<Map.Entry<Object,Object>>	RenderingHints.entrySet() Returns a Set view of the mappings contained in this RenderingHints.
Set<Map.Entry<Object,Object>>	RenderingHints.entrySet() Returns a Set view of the mappings contained in this RenderingHints.
Set<Object>	RenderingHints.keySet() Returns a Set view of the Keys contained in this RenderingHints.
Collection<Object>	RenderingHints.values() Returns a Collection view of the values contained in this RenderinHints.

Methods in java.awt with parameters of type Object

Modifier and Type	Method and Description
boolean	Component.action(Event evt, Object what) Deprecated. As of JDK version 1.1, should register this component as ActionListener on component which fires action events.
void	Container.add(Component comp, Object constraints) Adds the specified component to the end of this container.
void	Container.add(Component comp, Object constraints, int index) Adds the specified component to this container with the specified constraints at the specified index.
protected void	Container.addImpl(Component comp, Object constraints, int index) Adds the specified component to this container at the specified index.
protected void	ScrollPane.addImpl(Component comp, Object constraints, int index) Adds the specified component to this scroll pane container.
void	GridBagLayout.addLayoutComponent(Component comp, Object constraints) Adds the specified component to the layout, using the specified constraints object.
void	BorderLayout.addLayoutComponent(Component comp, Object constraints) Adds the specified component to the layout, using the specified constraint object.
void	CardLayout.addLayoutComponent(Component comp, Object constraints) Adds the specified component to this card layout's internal table of names.
void	LayoutManager2.addLayoutComponent(Component comp, Object constraints) Adds the specified component to the layout, using the specified constraint object.
boolean	RenderingHints.containsKey(Object key) Returns true if this RenderingHints contains a mapping for the specified key.
boolean	RenderingHints.containsValue(Object value) Returns true if this RenderingHints maps one or more keys to the specified value.
boolean	Color.equals(Object obj) Determines whether another object is equal to this Color.
boolean	Dimension.equals(Object obj) Checks whether two dimension objects have equal values.
boolean	MenuShortcut.equals(Object obj) Returns whether this MenuShortcut is the same as another: equality is defined to mean that both MenuShortcuts use the same key and both either use or don't use the SHIFT key.
boolean	DisplayMode.equals(Object dm) Indicates whether some other object is "equal to" this one.
boolean	BasicStroke.equals(Object obj) Tests if a specified object is equal to this BasicStroke by first testing if it is a BasicStroke and then comparing its width, join, cap, miter limit, dash, and dash phase attributes with those of this BasicStroke.
boolean	RenderingHints.equals(Object o) Compares the specified Object with this RenderingHints for equality.
boolean	RenderingHints.Key.equals(Object o) The equals method for all Key objects will return the same result as the equality operator '=='.
boolean	Font.equals(Object obj) Compares this Font object to the specified Object.
boolean	PageAttributes.equals(Object obj) Determines whether two PageAttributes are equal to each other.
boolean	AWTKeyStroke.equals(Object anObject) Returns true if this object is identical to the specified object.
boolean	JobAttributes.equals(Object obj) Determines whether two JobAttributes are equal to each other.
boolean	Insets.equals(Object obj) Checks whether two insets objects are equal.
boolean	Rectangle.equals(Object obj) Checks whether two rectangles are equal.
boolean	Point.equals(Object obj) Determines whether or not two points are equal.
boolean	AlphaComposite.equals(Object obj) Determines whether the specified object is equal to this AlphaComposite.
protected void	Component.firePropertyChange(String propertyName, Object oldValue, Object newValue) Support for reporting bound property changes for Object properties.
protected void	KeyboardFocusManager.firePropertyChange(String propertyName, Object oldValue, Object newValue) Fires a PropertyChangeEvent in response to a change in a bound property.
protected void	KeyboardFocusManager.fireVetoableChange(String propertyName, Object oldValue, Object newValue) Fires a PropertyChangeEvent in response to a change in a vetoable property.
Object	RenderingHints.get(Object key) Returns the value to which the specified key is mapped.
Component	BorderLayout.getLayoutComponent(Container target, Object constraints) Returns the component that corresponds to the given constraint location based on the target Container's component orientation.
Component	BorderLayout.getLayoutComponent(Object constraints) Gets the component that was added using the given constraint
boolean	Component.gotFocus(Event evt, Object what) Deprecated. As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).
abstract boolean	RenderingHints.Key.isCompatibleValue(Object val) Returns true if the specified object is a valid value for this Key.
boolean	Component.lostFocus(Event evt, Object what) Deprecated. As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).
Object	RenderingHints.put(Object key, Object value) Maps the specified key to the specified value in this RenderingHints object.
Object	RenderingHints.remove(Object key) Removes the key and its corresponding value from this RenderingHints object.
protected void	Toolkit.setDesktopProperty(String name, Object newValue) Sets the named desktop property to the specified value and fires a property change event to notify any listeners that the value has changed.
abstract void	Graphics2D.setRenderingHint(RenderingHints.Key hintKey, Object hintValue) Sets the value of a single preference for the rendering algorithms.
void	AWTEvent.setSource(Object newSource) Retargets an event to a new source.

Constructors in java.awt with parameters of type Object

Constructor and Description
AWTEvent(Object source, int id) Constructs an AWTEvent object with the specified source object and type.
Event(Object target, int id, Object arg) NOTE: The Event class is obsolete and is available only for backwards compatilibility.
Event(Object target, long when, int id, int x, int y, int key, int modifiers) NOTE: The Event class is obsolete and is available only for backwards compatilibility.
Event(Object target, long when, int id, int x, int y, int key, int modifiers, Object arg) NOTE: The Event class is obsolete and is available only for backwards compatilibility.
RenderingHints(RenderingHints.Key key, Object value) Constructs a new object with the specified key/value pair.

Uses of Object in java.awt.color

Subclasses of Object in java.awt.color

Modifier and Type	Class and Description
class	CMMException This exception is thrown if the native CMM returns an error.
class	ColorSpace This abstract class is used to serve as a color space tag to identify the specific color space of a Color object or, via a ColorModel object, of an Image, a BufferedImage, or a GraphicsDevice.
class	ICC_ColorSpace The ICC_ColorSpace class is an implementation of the abstract ColorSpace class.
class	ICC_Profile A representation of color profile data for device independent and device dependent color spaces based on the International Color Consortium Specification ICC.1:2001-12, File Format for Color Profiles, (see http://www.color.org).
class	ICC_ProfileGray A subclass of the ICC_Profile class which represents profiles which meet the following criteria: the color space type of the profile is TYPE_GRAY and the profile includes the grayTRCTag and mediaWhitePointTag tags.
class	ICC_ProfileRGB The ICC_ProfileRGB class is a subclass of the ICC_Profile class that represents profiles which meet the following criteria: The profile's color space type is RGB. The profile includes the redColorantTag, greenColorantTag, blueColorantTag, redTRCTag, greenTRCTag, blueTRCTag, and mediaWhitePointTag tags. The ICC_Profile getInstance method will return an ICC_ProfileRGB object when these conditions are met.
class	ProfileDataException This exception is thrown when an error occurs in accessing or processing an ICC_Profile object.

Methods in java.awt.color that return Object

Modifier and Type	Method and Description
protected Object	ICC_Profile.readResolve() Resolves instances being deserialized into instances registered with CMM.

Uses of Object in java.awt.datatransfer

Subclasses of Object in java.awt.datatransfer

Modifier and Type	Class and Description
class	Clipboard A class that implements a mechanism to transfer data using cut/copy/paste operations.
class	DataFlavor A DataFlavor provides meta information about data.
class	FlavorEvent FlavorEvent is used to notify interested parties that available DataFlavors have changed in the Clipboard (the event source).
class	MimeTypeParseException A class to encapsulate MimeType parsing related exceptions
class	StringSelection A Transferable which implements the capability required to transfer a String.
class	SystemFlavorMap The SystemFlavorMap is a configurable map between "natives" (Strings), which correspond to platform-specific data formats, and "flavors" (DataFlavors), which correspond to platform-independent MIME types.
class	UnsupportedFlavorException Signals that the requested data is not supported in this flavor.

Methods in java.awt.datatransfer that return Object

Modifier and Type	Method and Description
Object	DataFlavor.clone() Returns a clone of this DataFlavor.
Object	Clipboard.getData(DataFlavor flavor) Returns an object representing the current contents of this clipboard in the specified DataFlavor.
Object	Transferable.getTransferData(DataFlavor flavor) Returns an object which represents the data to be transferred.
Object	StringSelection.getTransferData(DataFlavor flavor) Returns the Transferable's data in the requested DataFlavor if possible.

Methods in java.awt.datatransfer with parameters of type Object

Modifier and Type	Method and Description
boolean	DataFlavor.equals(Object o) Indicates whether some other object is "equal to" this one.
Transferable	Clipboard.getContents(Object requestor) Returns a transferable object representing the current contents of the clipboard.

Uses of Object in java.awt.dnd

Subclasses of Object in java.awt.dnd

Modifier and Type	Class and Description
class	DnDConstants This class contains constant values representing the type of action(s) to be performed by a Drag and Drop operation.
class	DragGestureEvent A DragGestureEvent is passed to DragGestureListener's dragGestureRecognized() method when a particular DragGestureRecognizer detects that a platform dependent drag initiating gesture has occurred on the Component that it is tracking.
class	DragGestureRecognizer The DragGestureRecognizer is an abstract base class for the specification of a platform-dependent listener that can be associated with a particular Component in order to identify platform-dependent drag initiating gestures.
class	DragSource The DragSource is the entity responsible for the initiation of the Drag and Drop operation, and may be used in a number of scenarios: 1 default instance per JVM for the lifetime of that JVM.
class	DragSourceAdapter An abstract adapter class for receiving drag source events.
class	DragSourceContext The DragSourceContext class is responsible for managing the initiator side of the Drag and Drop protocol.
class	DragSourceDragEvent The DragSourceDragEvent is delivered from the DragSourceContextPeer, via the DragSourceContext, to the DragSourceListener registered with that DragSourceContext and with its associated DragSource.
class	DragSourceDropEvent The DragSourceDropEvent is delivered from the DragSourceContextPeer, via the DragSourceContext, to the dragDropEnd method of DragSourceListeners registered with that DragSourceContext and with its associated DragSource.
class	DragSourceEvent This class is the base class for DragSourceDragEvent and DragSourceDropEvent.
class	DropTarget The DropTarget is associated with a Component when that Component wishes to accept drops during Drag and Drop operations.
protected static class	DropTarget.DropTargetAutoScroller this protected nested class implements autoscrolling
class	DropTargetAdapter An abstract adapter class for receiving drop target events.
class	DropTargetContext A DropTargetContext is created whenever the logical cursor associated with a Drag and Drop operation coincides with the visible geometry of a Component associated with a DropTarget.
protected class	DropTargetContext.TransferableProxy TransferableProxy is a helper inner class that implements Transferable interface and serves as a proxy for another Transferable object which represents data transfer for a particular drag-n-drop operation.
class	DropTargetDragEvent The DropTargetDragEvent is delivered to a DropTargetListener via its dragEnter() and dragOver() methods.
class	DropTargetDropEvent The DropTargetDropEvent is delivered via the DropTargetListener drop() method.
class	DropTargetEvent The DropTargetEvent is the base class for both the DropTargetDragEvent and the DropTargetDropEvent.
class	InvalidDnDOperationException This exception is thrown by various methods in the java.awt.dnd package.
class	MouseDragGestureRecognizer This abstract subclass of DragGestureRecognizer defines a DragGestureRecognizer for mouse-based gestures.

Methods in java.awt.dnd that return Object

Modifier and Type	Method and Description
Object	DropTargetContext.TransferableProxy.getTransferData(DataFlavor df) Returns an object which represents the data provided by the encapsulated transferable for the requested data flavor.
Object[]	DragGestureEvent.toArray() Returns an Object array of the events comprising the drag gesture.
Object[]	DragGestureEvent.toArray(Object[] array) Returns an array of the events comprising the drag gesture.

Methods in java.awt.dnd with parameters of type Object

Modifier and Type	Method and Description
Object[]	DragGestureEvent.toArray(Object[] array) Returns an array of the events comprising the drag gesture.

Uses of Object in java.awt.event

Subclasses of Object in java.awt.event

Modifier and Type	Class and Description
class	ActionEvent A semantic event which indicates that a component-defined action occurred.
class	AdjustmentEvent The adjustment event emitted by Adjustable objects like Scrollbar and ScrollPane.
class	AWTEventListenerProxy A class which extends the EventListenerProxy specifically for adding an AWTEventListener for a specific event mask.
class	ComponentAdapter An abstract adapter class for receiving component events.
class	ComponentEvent A low-level event which indicates that a component moved, changed size, or changed visibility (also, the root class for the other component-level events).
class	ContainerAdapter An abstract adapter class for receiving container events.
class	ContainerEvent A low-level event which indicates that a container's contents changed because a component was added or removed.
class	FocusAdapter An abstract adapter class for receiving keyboard focus events.
class	FocusEvent A low-level event which indicates that a Component has gained or lost the input focus.
class	HierarchyBoundsAdapter An abstract adapter class for receiving ancestor moved and resized events.
class	HierarchyEvent An event which indicates a change to the Component hierarchy to which Component belongs.
class	InputEvent The root event class for all component-level input events.
class	InputMethodEvent Input method events contain information about text that is being composed using an input method.
class	InvocationEvent An event which executes the run() method on a Runnable when dispatched by the AWT event dispatcher thread.
class	ItemEvent A semantic event which indicates that an item was selected or deselected.
class	KeyAdapter An abstract adapter class for receiving keyboard events.
class	KeyEvent An event which indicates that a keystroke occurred in a component.
class	MouseAdapter An abstract adapter class for receiving mouse events.
class	MouseEvent An event which indicates that a mouse action occurred in a component.
class	MouseMotionAdapter An abstract adapter class for receiving mouse motion events.
class	MouseWheelEvent An event which indicates that the mouse wheel was rotated in a component.
class	PaintEvent The component-level paint event.
class	TextEvent A semantic event which indicates that an object's text changed.
class	WindowAdapter An abstract adapter class for receiving window events.
class	WindowEvent A low-level event that indicates that a window has changed its status.

Fields in java.awt.event declared as Object

Modifier and Type	Field and Description
protected Object	InvocationEvent.notifier The (potentially null) Object whose notifyAll() method will be called immediately after the Runnable.run() method has returned or thrown an exception.

Methods in java.awt.event that return Object

Modifier and Type	Method and Description
Object	ItemEvent.getItem() Returns the item affected by the event.

Constructors in java.awt.event with parameters of type Object

Constructor and Description
ActionEvent(Object source, int id, String command) Constructs an ActionEvent object.
ActionEvent(Object source, int id, String command, int modifiers) Constructs an ActionEvent object with modifier keys.
ActionEvent(Object source, int id, String command, long when, int modifiers) Constructs an ActionEvent object with the specified modifier keys and timestamp.
InvocationEvent(Object source, int id, Runnable runnable, Object notifier, boolean catchThrowables) Constructs an InvocationEvent with the specified source and ID which will execute the runnable's run method when dispatched.
InvocationEvent(Object source, Runnable runnable) Constructs an InvocationEvent with the specified source which will execute the runnable's run method when dispatched.
InvocationEvent(Object source, Runnable runnable, Object notifier, boolean catchThrowables) Constructs an InvocationEvent with the specified source which will execute the runnable's run method when dispatched.
ItemEvent(ItemSelectable source, int id, Object item, int stateChange) Constructs an ItemEvent object.
TextEvent(Object source, int id) Constructs a TextEvent object.

Uses of Object in java.awt.font

Subclasses of Object in java.awt.font

Modifier and Type	Class and Description
class	FontRenderContext The FontRenderContext class is a container for the information needed to correctly measure text.
class	GlyphJustificationInfo The GlyphJustificationInfo class represents information about the justification properties of a glyph.
class	GlyphMetrics The GlyphMetrics class represents infomation for a single glyph.
class	GlyphVector A GlyphVector object is a collection of glyphs containing geometric information for the placement of each glyph in a transformed coordinate space which corresponds to the device on which the GlyphVector is ultimately displayed.
class	GraphicAttribute This class is used with the CHAR_REPLACEMENT attribute.
class	ImageGraphicAttribute The ImageGraphicAttribute class is an implementation of GraphicAttribute which draws images in a TextLayout.
class	LayoutPath LayoutPath provides a mapping between locations relative to the baseline and points in user space.
class	LineBreakMeasurer The LineBreakMeasurer class allows styled text to be broken into lines (or segments) that fit within a particular visual advance.
class	LineMetrics The LineMetrics class allows access to the metrics needed to layout characters along a line and to layout of a set of lines.
class	NumericShaper The NumericShaper class is used to convert Latin-1 (European) digits to other Unicode decimal digits.
class	ShapeGraphicAttribute The ShapeGraphicAttribute class is an implementation of GraphicAttribute that draws shapes in a TextLayout.
class	TextAttribute The TextAttribute class defines attribute keys and attribute values used for text rendering.
class	TextHitInfo The TextHitInfo class represents a character position in a text model, and a bias, or "side," of the character.
class	TextLayout TextLayout is an immutable graphical representation of styled character data.
static class	TextLayout.CaretPolicy Defines a policy for determining the strong caret location.
class	TextMeasurer The TextMeasurer class provides the primitive operations needed for line break: measuring up to a given advance, determining the advance of a range of characters, and generating a TextLayout for a range of characters.
class	TransformAttribute The TransformAttribute class provides an immutable wrapper for a transform so that it is safe to use as an attribute.

Methods in java.awt.font that return Object

Modifier and Type	Method and Description
protected Object	TextLayout.clone() Creates a copy of this TextLayout.
protected Object	TextMeasurer.clone()
Object	FontRenderContext.getAntiAliasingHint() Return the text anti-aliasing rendering mode hint used in this FontRenderContext.
Object	FontRenderContext.getFractionalMetricsHint() Return the text fractional metrics rendering mode hint used in this FontRenderContext.
protected Object	TextAttribute.readResolve() Resolves instances being deserialized to the predefined constants.

Methods in java.awt.font with parameters of type Object

Modifier and Type	Method and Description
boolean	TransformAttribute.equals(Object rhs) Returns true if rhs is a TransformAttribute whose transform is equal to this TransformAttribute's transform.
boolean	ShapeGraphicAttribute.equals(Object rhs) Compares this ShapeGraphicAttribute to the specified Object.
boolean	NumericShaper.equals(Object o) Returns true if the specified object is an instance of NumericShaper and shapes identically to this one, regardless of the range representations, the bit mask or the enum.
boolean	FontRenderContext.equals(Object obj) Return true if obj is an instance of FontRenderContext and has the same transform, antialiasing, and fractional metrics values as this.
boolean	ImageGraphicAttribute.equals(Object rhs) Compares this ImageGraphicAttribute to the specified Object.
boolean	TextHitInfo.equals(Object obj) Returns true if the specified Object is a TextHitInfo and equals this TextHitInfo.
boolean	TextLayout.equals(Object obj) Returns true if the specified Object is a TextLayout object and if the specified Object equals this TextLayout.

Constructors in java.awt.font with parameters of type Object

Constructor and Description
FontRenderContext(AffineTransform tx, Object aaHint, Object fmHint) Constructs a FontRenderContext object from an optional AffineTransform and two Object values that determine if the newly constructed object has anti-aliasing or fractional metrics.

Uses of Object in java.awt.geom

Subclasses of Object in java.awt.geom

Modifier and Type	Class and Description
class	AffineTransform The AffineTransform class represents a 2D affine transform that performs a linear mapping from 2D coordinates to other 2D coordinates that preserves the "straightness" and "parallelness" of lines.
class	Arc2D Arc2D is the abstract superclass for all objects that store a 2D arc defined by a framing rectangle, start angle, angular extent (length of the arc), and a closure type (OPEN, CHORD, or PIE).
static class	Arc2D.Double This class defines an arc specified in double precision.
static class	Arc2D.Float This class defines an arc specified in float precision.
class	Area An Area object stores and manipulates a resolution-independent description of an enclosed area of 2-dimensional space.
class	CubicCurve2D The CubicCurve2D class defines a cubic parametric curve segment in (x,y) coordinate space.
static class	CubicCurve2D.Double A cubic parametric curve segment specified with double coordinates.
static class	CubicCurve2D.Float A cubic parametric curve segment specified with float coordinates.
class	Dimension2D The Dimension2D class is to encapsulate a width and a height dimension.
class	Ellipse2D The Ellipse2D class describes an ellipse that is defined by a framing rectangle.
static class	Ellipse2D.Double The Double class defines an ellipse specified in double precision.
static class	Ellipse2D.Float The Float class defines an ellipse specified in float precision.
class	FlatteningPathIterator The FlatteningPathIterator class returns a flattened view of another PathIterator object.
class	GeneralPath The GeneralPath class represents a geometric path constructed from straight lines, and quadratic and cubic (Bézier) curves.
class	IllegalPathStateException The IllegalPathStateException represents an exception that is thrown if an operation is performed on a path that is in an illegal state with respect to the particular operation being performed, such as appending a path segment to a GeneralPath without an initial moveto.
class	Line2D This Line2D represents a line segment in (x,y) coordinate space.
static class	Line2D.Double A line segment specified with double coordinates.
static class	Line2D.Float A line segment specified with float coordinates.
class	NoninvertibleTransformException The NoninvertibleTransformException class represents an exception that is thrown if an operation is performed requiring the inverse of an AffineTransform object but the AffineTransform is in a non-invertible state.
class	Path2D The Path2D class provides a simple, yet flexible shape which represents an arbitrary geometric path.
static class	Path2D.Double The Double class defines a geometric path with coordinates stored in double precision floating point.
static class	Path2D.Float The Float class defines a geometric path with coordinates stored in single precision floating point.
class	Point2D The Point2D class defines a point representing a location in (x,y) coordinate space.
static class	Point2D.Double The Double class defines a point specified in double precision.
static class	Point2D.Float The Float class defines a point specified in float precision.
class	QuadCurve2D The QuadCurve2D class defines a quadratic parametric curve segment in (x,y) coordinate space.
static class	QuadCurve2D.Double A quadratic parametric curve segment specified with double coordinates.
static class	QuadCurve2D.Float A quadratic parametric curve segment specified with float coordinates.
class	Rectangle2D The Rectangle2D class describes a rectangle defined by a location (x,y) and dimension (w x h).
static class	Rectangle2D.Double The Double class defines a rectangle specified in double coordinates.
static class	Rectangle2D.Float The Float class defines a rectangle specified in float coordinates.
class	RectangularShape RectangularShape is the base class for a number of Shape objects whose geometry is defined by a rectangular frame.
class	RoundRectangle2D The RoundRectangle2D class defines a rectangle with rounded corners defined by a location (x,y), a dimension (w x h), and the width and height of an arc with which to round the corners.
static class	RoundRectangle2D.Double The Double class defines a rectangle with rounded corners all specified in double coordinates.
static class	RoundRectangle2D.Float The Float class defines a rectangle with rounded corners all specified in float coordinates.

Methods in java.awt.geom that return Object

Modifier and Type	Method and Description
Object	Dimension2D.clone() Creates a new object of the same class as this object.
abstract Object	Path2D.clone() Creates a new object of the same class as this object.
Object	Path2D.Float.clone() Creates a new object of the same class as this object.
Object	Path2D.Double.clone() Creates a new object of the same class as this object.
Object	Line2D.clone() Creates a new object of the same class as this object.
Object	RectangularShape.clone() Creates a new object of the same class and with the same contents as this object.
Object	QuadCurve2D.clone() Creates a new object of the same class and with the same contents as this object.
Object	Area.clone() Returns an exact copy of this Area object.
Object	CubicCurve2D.clone() Creates a new object of the same class as this object.
Object	Point2D.clone() Creates a new object of the same class and with the same contents as this object.
Object	AffineTransform.clone() Returns a copy of this AffineTransform object.

Methods in java.awt.geom with parameters of type Object

Modifier and Type	Method and Description
boolean	Arc2D.equals(Object obj) Determines whether or not the specified Object is equal to this Arc2D.
boolean	Ellipse2D.equals(Object obj) Determines whether or not the specified Object is equal to this Ellipse2D.
boolean	Rectangle2D.equals(Object obj) Determines whether or not the specified Object is equal to this Rectangle2D.
boolean	Point2D.equals(Object obj) Determines whether or not two points are equal.
boolean	AffineTransform.equals(Object obj) Returns true if this AffineTransform represents the same affine coordinate transform as the specified argument.
boolean	RoundRectangle2D.equals(Object obj) Determines whether or not the specified Object is equal to this RoundRectangle2D.

Uses of Object in java.awt.im

Subclasses of Object in java.awt.im

Modifier and Type	Class and Description
class	InputContext Provides methods to control text input facilities such as input methods and keyboard layouts.
class	InputMethodHighlight An InputMethodHighlight is used to describe the highlight attributes of text being composed.
class	InputSubset Defines additional Unicode subsets for use by input methods.

Methods in java.awt.im that return Object

Modifier and Type	Method and Description
Object	InputContext.getInputMethodControlObject() Returns a control object from the current input method, or null.

Uses of Object in java.awt.im.spi

Methods in java.awt.im.spi that return Object

Modifier and Type	Method and Description
Object	InputMethod.getControlObject() Returns a control object from this input method, or null.

Uses of Object in java.awt.image

Subclasses of Object in java.awt.image

Modifier and Type	Class and Description
class	AffineTransformOp This class uses an affine transform to perform a linear mapping from 2D coordinates in the source image or Raster to 2D coordinates in the destination image or Raster.
class	AreaAveragingScaleFilter An ImageFilter class for scaling images using a simple area averaging algorithm that produces smoother results than the nearest neighbor algorithm.
class	BandCombineOp This class performs an arbitrary linear combination of the bands in a Raster, using a specified matrix.
class	BandedSampleModel This class represents image data which is stored in a band interleaved fashion and for which each sample of a pixel occupies one data element of the DataBuffer.
class	BufferedImage The BufferedImage subclass describes an Image with an accessible buffer of image data.
class	BufferedImageFilter The BufferedImageFilter class subclasses an ImageFilter to provide a simple means of using a single-source/single-destination image operator (BufferedImageOp) to filter a BufferedImage in the Image Producer/Consumer/Observer paradigm.
class	BufferStrategy The BufferStrategy class represents the mechanism with which to organize complex memory on a particular Canvas or Window.
class	ByteLookupTable This class defines a lookup table object.
class	ColorConvertOp This class performs a pixel-by-pixel color conversion of the data in the source image.
class	ColorModel The ColorModel abstract class encapsulates the methods for translating a pixel value to color components (for example, red, green, and blue) and an alpha component.
class	ComponentColorModel A ColorModel class that works with pixel values that represent color and alpha information as separate samples and that store each sample in a separate data element.
class	ComponentSampleModel This class represents image data which is stored such that each sample of a pixel occupies one data element of the DataBuffer.
class	ConvolveOp This class implements a convolution from the source to the destination.
class	CropImageFilter An ImageFilter class for cropping images.
class	DataBuffer This class exists to wrap one or more data arrays.
class	DataBufferByte This class extends DataBuffer and stores data internally as bytes.
class	DataBufferDouble This class extends DataBuffer and stores data internally in double form.
class	DataBufferFloat This class extends DataBuffer and stores data internally in float form.
class	DataBufferInt This class extends DataBuffer and stores data internally as integers.
class	DataBufferShort This class extends DataBuffer and stores data internally as shorts.
class	DataBufferUShort This class extends DataBuffer and stores data internally as shorts.
class	DirectColorModel The DirectColorModel class is a ColorModel class that works with pixel values that represent RGB color and alpha information as separate samples and that pack all samples for a single pixel into a single int, short, or byte quantity.
class	FilteredImageSource This class is an implementation of the ImageProducer interface which takes an existing image and a filter object and uses them to produce image data for a new filtered version of the original image.
class	ImageFilter This class implements a filter for the set of interface methods that are used to deliver data from an ImageProducer to an ImageConsumer.
class	ImagingOpException The ImagingOpException is thrown if one of the BufferedImageOp or RasterOp filter methods cannot process the image.
class	IndexColorModel The IndexColorModel class is a ColorModel class that works with pixel values consisting of a single sample that is an index into a fixed colormap in the default sRGB color space.
class	Kernel The Kernel class defines a matrix that describes how a specified pixel and its surrounding pixels affect the value computed for the pixel's position in the output image of a filtering operation.
class	LookupOp This class implements a lookup operation from the source to the destination.
class	LookupTable This abstract class defines a lookup table object.
class	MemoryImageSource This class is an implementation of the ImageProducer interface which uses an array to produce pixel values for an Image.
class	MultiPixelPackedSampleModel The MultiPixelPackedSampleModel class represents one-banded images and can pack multiple one-sample pixels into one data element.
class	PackedColorModel The PackedColorModel class is an abstract ColorModel class that works with pixel values which represent color and alpha information as separate samples and which pack all samples for a single pixel into a single int, short, or byte quantity.
class	PixelGrabber The PixelGrabber class implements an ImageConsumer which can be attached to an Image or ImageProducer object to retrieve a subset of the pixels in that image.
class	PixelInterleavedSampleModel This class represents image data which is stored in a pixel interleaved fashion and for which each sample of a pixel occupies one data element of the DataBuffer.
class	Raster A class representing a rectangular array of pixels.
class	RasterFormatException The RasterFormatException is thrown if there is invalid layout information in the Raster.
class	ReplicateScaleFilter An ImageFilter class for scaling images using the simplest algorithm.
class	RescaleOp This class performs a pixel-by-pixel rescaling of the data in the source image by multiplying the sample values for each pixel by a scale factor and then adding an offset.
class	RGBImageFilter This class provides an easy way to create an ImageFilter which modifies the pixels of an image in the default RGB ColorModel.
class	SampleModel This abstract class defines an interface for extracting samples of pixels in an image.
class	ShortLookupTable This class defines a lookup table object.
class	SinglePixelPackedSampleModel This class represents pixel data packed such that the N samples which make up a single pixel are stored in a single data array element, and each data data array element holds samples for only one pixel.
class	VolatileImage VolatileImage is an image which can lose its contents at any time due to circumstances beyond the control of the application (e.g., situations caused by the operating system or by other applications).
class	WritableRaster This class extends Raster to provide pixel writing capabilities.

Fields in java.awt.image declared as Object

Modifier and Type	Field and Description
protected Object	ReplicateScaleFilter.outpixbuf A byte array initialized with a size of ReplicateScaleFilter.destWidth and used to deliver a row of pixel data to the ImageConsumer.

Methods in java.awt.image that return Object

Modifier and Type	Method and Description
Object	Kernel.clone() Clones this object.
Object	ImageFilter.clone() Clones this object.
Object	ComponentColorModel.getDataElements(float[] normComponents, int normOffset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.
Object	ColorModel.getDataElements(float[] normComponents, int normOffset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.
Object	IndexColorModel.getDataElements(int[] components, int offset, Object pixel) Returns a data element array representation of a pixel in this ColorModel given an array of unnormalized color/alpha components.
Object	ComponentColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	DirectColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	Raster.getDataElements(int x, int y, int w, int h, Object outData) Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
Object	SampleModel.getDataElements(int x, int y, int w, int h, Object obj, DataBuffer data) Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
Object	Raster.getDataElements(int x, int y, Object outData) Returns data for a single pixel in a primitive array of type TransferType.
abstract Object	SampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	BandedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	SinglePixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	MultiPixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	ComponentSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	IndexColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	ComponentColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	DirectColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	ColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	PixelGrabber.getPixels() Get the pixel buffer.
Object	BufferedImage.getProperty(String name) Returns a property of the image by name.
Object	RenderedImage.getProperty(String name) Gets a property from the property set of this image.
Object	BufferedImage.getProperty(String name, ImageObserver observer) Returns a property of the image by name.

Methods in java.awt.image with parameters of type Object

Modifier and Type	Method and Description
boolean	PackedColorModel.equals(Object obj) Tests if the specified Object is an instance of PackedColorModel and equals this PackedColorModel.
boolean	SinglePixelPackedSampleModel.equals(Object o)
boolean	ComponentColorModel.equals(Object obj) Compares this color model with another for equality.
boolean	MultiPixelPackedSampleModel.equals(Object o)
boolean	ColorModel.equals(Object obj) Tests if the specified Object is an instance of ColorModel and if it equals this ColorModel.
boolean	ComponentSampleModel.equals(Object o)
int	ComponentColorModel.getAlpha(Object inData) Returns the alpha component for the specified pixel, scaled from 0 to 255.
int	DirectColorModel.getAlpha(Object inData) Returns the alpha component for the specified pixel, scaled from 0 to 255.
int	ColorModel.getAlpha(Object inData) Returns the alpha component for the specified pixel, scaled from 0 to 255.
int	ComponentColorModel.getBlue(Object inData) Returns the blue color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	DirectColorModel.getBlue(Object inData) Returns the blue color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ColorModel.getBlue(Object inData) Returns the blue color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int[]	IndexColorModel.getComponents(Object pixel, int[] components, int offset) Returns an array of unnormalized color/alpha components for a specified pixel in this ColorModel.
int[]	ComponentColorModel.getComponents(Object pixel, int[] components, int offset) Returns an array of unnormalized color/alpha components given a pixel in this ColorModel.
int[]	DirectColorModel.getComponents(Object pixel, int[] components, int offset) Returns an array of unnormalized color/alpha components given a pixel in this ColorModel.
int[]	ColorModel.getComponents(Object pixel, int[] components, int offset) Returns an array of unnormalized color/alpha components given a pixel in this ColorModel.
Object	ComponentColorModel.getDataElements(float[] normComponents, int normOffset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.
Object	ColorModel.getDataElements(float[] normComponents, int normOffset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.
Object	IndexColorModel.getDataElements(int[] components, int offset, Object pixel) Returns a data element array representation of a pixel in this ColorModel given an array of unnormalized color/alpha components.
Object	ComponentColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	DirectColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	Raster.getDataElements(int x, int y, int w, int h, Object outData) Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
Object	SampleModel.getDataElements(int x, int y, int w, int h, Object obj, DataBuffer data) Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
Object	Raster.getDataElements(int x, int y, Object outData) Returns data for a single pixel in a primitive array of type TransferType.
abstract Object	SampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	BandedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	SinglePixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	MultiPixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	ComponentSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	IndexColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	ComponentColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	DirectColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	ColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
int	ComponentColorModel.getGreen(Object inData) Returns the green color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	DirectColorModel.getGreen(Object inData) Returns the green color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ColorModel.getGreen(Object inData) Returns the green color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
float[]	ComponentColorModel.getNormalizedComponents(Object pixel, float[] normComponents, int normOffset) Returns an array of all of the color/alpha components in normalized form, given a pixel in this ColorModel.
float[]	ColorModel.getNormalizedComponents(Object pixel, float[] normComponents, int normOffset) Returns an array of all of the color/alpha components in normalized form, given a pixel in this ColorModel.
int	ComponentColorModel.getRed(Object inData) Returns the red color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	DirectColorModel.getRed(Object inData) Returns the red color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ColorModel.getRed(Object inData) Returns the red color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ComponentColorModel.getRGB(Object inData) Returns the color/alpha components for the specified pixel in the default RGB color model format.
int	DirectColorModel.getRGB(Object inData) Returns the color/alpha components for the specified pixel in the default RGB color model format.
int	ColorModel.getRGB(Object inData) Returns the color/alpha components for the specified pixel in the default RGB color model format.
void	WritableRaster.setDataElements(int x, int y, int w, int h, Object inData) Sets the data for a rectangle of pixels from a primitive array of type TransferType.
void	SampleModel.setDataElements(int x, int y, int w, int h, Object obj, DataBuffer data) Sets the data for a rectangle of pixels in the specified DataBuffer from a primitive array of type TransferType.
void	WritableRaster.setDataElements(int x, int y, Object inData) Sets the data for a single pixel from a primitive array of type TransferType.
abstract void	SampleModel.setDataElements(int x, int y, Object obj, DataBuffer data) Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
void	BandedSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data) Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
void	SinglePixelPackedSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data) Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
void	MultiPixelPackedSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data) Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
void	ComponentSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data) Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.

Uses of Object in java.awt.image.renderable

Subclasses of Object in java.awt.image.renderable

Modifier and Type	Class and Description
class	ParameterBlock A ParameterBlock encapsulates all the information about sources and parameters (Objects) required by a RenderableImageOp, or other classes that process images.
class	RenderableImageOp This class handles the renderable aspects of an operation with help from its associated instance of a ContextualRenderedImageFactory.
class	RenderableImageProducer An adapter class that implements ImageProducer to allow the asynchronous production of a RenderableImage.
class	RenderContext A RenderContext encapsulates the information needed to produce a specific rendering from a RenderableImage.

Fields in java.awt.image.renderable with type parameters of type Object

Modifier and Type	Field and Description
protected Vector<Object>	ParameterBlock.parameters A Vector of non-source parameters, stored as arbitrary Objects.
protected Vector<Object>	ParameterBlock.sources A Vector of sources, stored as arbitrary Objects.

Methods in java.awt.image.renderable that return Object

Modifier and Type	Method and Description
Object	RenderContext.clone() Makes a copy of a RenderContext.
Object	ParameterBlock.clone() Creates a copy of a ParameterBlock.
Object	ParameterBlock.getObjectParameter(int index) Gets a parameter as an object.
Object	ContextualRenderedImageFactory.getProperty(ParameterBlock paramBlock, String name) Gets the appropriate instance of the property specified by the name parameter.
Object	RenderableImage.getProperty(String name) Gets a property from the property set of this image.
Object	RenderableImageOp.getProperty(String name) Gets a property from the property set of this image.
Object	ParameterBlock.getSource(int index) Returns a source as a general Object.
Object	ParameterBlock.shallowClone() Creates a shallow copy of a ParameterBlock.

Methods in java.awt.image.renderable that return types with arguments of type Object

Modifier and Type	Method and Description
Vector<Object>	ParameterBlock.getParameters() Returns the entire Vector of parameters.
Vector<Object>	ParameterBlock.getSources() Returns the entire Vector of sources.

Methods in java.awt.image.renderable with parameters of type Object

Modifier and Type	Method and Description
ParameterBlock	ParameterBlock.add(Object obj) Adds an object to the list of parameters.
ParameterBlock	ParameterBlock.addSource(Object source) Adds an image to end of the list of sources.
ParameterBlock	ParameterBlock.set(Object obj, int index) Replaces an Object in the list of parameters.
ParameterBlock	ParameterBlock.setSource(Object source, int index) Replaces an entry in the list of source with a new source.

Method parameters in java.awt.image.renderable with type arguments of type Object

Modifier and Type	Method and Description
void	ParameterBlock.setParameters(Vector<Object> parameters) Sets the entire Vector of parameters to a given Vector.
void	ParameterBlock.setSources(Vector<Object> sources) Sets the entire Vector of sources to a given Vector.

Constructor parameters in java.awt.image.renderable with type arguments of type Object

Constructor and Description
ParameterBlock(Vector<Object> sources) Constructs a ParameterBlock with a given Vector of sources.
ParameterBlock(Vector<Object> sources, Vector<Object> parameters) Constructs a ParameterBlock with a given Vector of sources and Vector of parameters.
ParameterBlock(Vector<Object> sources, Vector<Object> parameters) Constructs a ParameterBlock with a given Vector of sources and Vector of parameters.

Uses of Object in java.awt.print

Subclasses of Object in java.awt.print

Modifier and Type	Class and Description
class	Book The Book class provides a representation of a document in which pages may have different page formats and page painters.
class	PageFormat The PageFormat class describes the size and orientation of a page to be printed.
class	Paper The Paper class describes the physical characteristics of a piece of paper.
class	PrinterAbortException The PrinterAbortException class is a subclass of PrinterException and is used to indicate that a user or application has terminated the print job while it was in the process of printing.
class	PrinterException The PrinterException class and its subclasses are used to indicate that an exceptional condition has occurred in the print system.
class	PrinterIOException The PrinterIOException class is a subclass of PrinterException and is used to indicate that an IO error of some sort has occurred while printing.
class	PrinterJob The PrinterJob class is the principal class that controls printing.

Methods in java.awt.print that return Object

Modifier and Type	Method and Description
Object	Paper.clone() Creates a copy of this Paper with the same contents as this Paper.
Object	PageFormat.clone() Makes a copy of this PageFormat with the same contents as this PageFormat.

Uses of Object in java.beans

Subclasses of Object in java.beans

Modifier and Type	Class and Description
class	BeanDescriptor A BeanDescriptor provides global information about a "bean", including its Java class, its displayName, etc.
class	Beans This class provides some general purpose beans control methods.
class	DefaultPersistenceDelegate The DefaultPersistenceDelegate is a concrete implementation of the abstract PersistenceDelegate class and is the delegate used by default for classes about which no information is available.
class	Encoder An Encoder is a class which can be used to create files or streams that encode the state of a collection of JavaBeans in terms of their public APIs.
class	EventHandler The EventHandler class provides support for dynamically generating event listeners whose methods execute a simple statement involving an incoming event object and a target object.
class	EventSetDescriptor An EventSetDescriptor describes a group of events that a given Java bean fires.
class	Expression An Expression object represents a primitive expression in which a single method is applied to a target and a set of arguments to return a result - as in "a.getFoo()".
class	FeatureDescriptor The FeatureDescriptor class is the common baseclass for PropertyDescriptor, EventSetDescriptor, and MethodDescriptor, etc.
class	IndexedPropertyChangeEvent An "IndexedPropertyChange" event gets delivered whenever a component that conforms to the JavaBeans™ specification (a "bean") changes a bound indexed property.
class	IndexedPropertyDescriptor An IndexedPropertyDescriptor describes a property that acts like an array and has an indexed read and/or indexed write method to access specific elements of the array.
class	IntrospectionException Thrown when an exception happens during Introspection.
class	Introspector The Introspector class provides a standard way for tools to learn about the properties, events, and methods supported by a target Java Bean.
class	MethodDescriptor A MethodDescriptor describes a particular method that a Java Bean supports for external access from other components.
class	ParameterDescriptor The ParameterDescriptor class allows bean implementors to provide additional information on each of their parameters, beyond the low level type information provided by the java.lang.reflect.Method class.
class	PersistenceDelegate The PersistenceDelegate class takes the responsibility for expressing the state of an instance of a given class in terms of the methods in the class's public API.
class	PropertyChangeEvent A "PropertyChange" event gets delivered whenever a bean changes a "bound" or "constrained" property.
class	PropertyChangeListenerProxy A class which extends the EventListenerProxy specifically for adding a PropertyChangeListener with a "bound" property.
class	PropertyChangeSupport This is a utility class that can be used by beans that support bound properties.
class	PropertyDescriptor A PropertyDescriptor describes one property that a Java Bean exports via a pair of accessor methods.
class	PropertyEditorManager The PropertyEditorManager can be used to locate a property editor for any given type name.
class	PropertyEditorSupport This is a support class to help build property editors.
class	PropertyVetoException A PropertyVetoException is thrown when a proposed change to a property represents an unacceptable value.
class	SimpleBeanInfo This is a support class to make it easier for people to provide BeanInfo classes.
class	Statement A Statement object represents a primitive statement in which a single method is applied to a target and a set of arguments - as in "a.setFoo(b)".
class	VetoableChangeListenerProxy A class which extends the EventListenerProxy specifically for adding a VetoableChangeListener with a "constrained" property.
class	VetoableChangeSupport This is a utility class that can be used by beans that support constrained properties.
class	XMLDecoder The XMLDecoder class is used to read XML documents created using the XMLEncoder and is used just like the ObjectInputStream.
class	XMLEncoder The XMLEncoder class is a complementary alternative to the ObjectOutputStream and can used to generate a textual representation of a JavaBean in the same way that the ObjectOutputStream can be used to create binary representation of Serializable objects.

Methods in java.beans that return Object

Modifier and Type	Method and Description
Object	Encoder.get(Object oldInstance) Returns a tentative value for oldInstance in the environment created by this stream.
Object[]	Statement.getArguments() Returns the arguments for the method to invoke.
static Object	Beans.getInstanceOf(Object bean, Class<?> targetType) From a given bean, obtain an object representing a specified type view of that source object.
Object	PropertyChangeEvent.getNewValue() Gets the new value for the property, expressed as an Object.
Object	PropertyChangeEvent.getOldValue() Gets the old value for the property, expressed as an Object.
Object	XMLDecoder.getOwner() Gets the owner of this decoder.
Object	XMLEncoder.getOwner() Gets the owner of this encoder.
Object	PropertyChangeEvent.getPropagationId() The "propagationId" field is reserved for future use.
Object	PropertyEditorSupport.getSource() Returns the bean that is used as the source of events.
Object	EventHandler.getTarget() Returns the object to which this event handler will send a message.
Object	Statement.getTarget() Returns the target object of this statement.
Object	Expression.getValue() If the value property of this instance is not already set, this method dynamically finds the method with the specified methodName on this target with these arguments and calls it.
Object	PropertyEditor.getValue() Gets the property value.
Object	PropertyEditorSupport.getValue() Gets the value of the property.
Object	FeatureDescriptor.getValue(String attributeName) Retrieve a named attribute with this feature.
static Object	Beans.instantiate(ClassLoader cls, String beanName) Instantiate a JavaBean.
static Object	Beans.instantiate(ClassLoader cls, String beanName, BeanContext beanContext) Instantiate a JavaBean.
static Object	Beans.instantiate(ClassLoader cls, String beanName, BeanContext beanContext, AppletInitializer initializer) Instantiate a bean.
Object	EventHandler.invoke(Object proxy, Method method, Object[] arguments) Extract the appropriate property value from the event and pass it to the action associated with this EventHandler.
Object	XMLDecoder.readObject() Reads the next object from the underlying input stream.
Object	Encoder.remove(Object oldInstance) Removes the entry for this instance, returning the old entry.

Methods in java.beans with parameters of type Object

Modifier and Type	Method and Description
static <T> T	EventHandler.create(Class<T> listenerInterface, Object target, String action) Creates an implementation of listenerInterface in which all of the methods in the listener interface apply the handler's action to the target.
static <T> T	EventHandler.create(Class<T> listenerInterface, Object target, String action, String eventPropertyName) /** Creates an implementation of listenerInterface in which all of the methods pass the value of the event expression, eventPropertyName, to the final method in the statement, action, which is applied to the target.
static <T> T	EventHandler.create(Class<T> listenerInterface, Object target, String action, String eventPropertyName, String listenerMethodName) Creates an implementation of listenerInterface in which the method named listenerMethodName passes the value of the event expression, eventPropertyName, to the final method in the statement, action, which is applied to the target.
static DefaultHandler	XMLDecoder.createHandler(Object owner, ExceptionListener el, ClassLoader cl) Creates a new handler for SAX parser that can be used to parse embedded XML archives created by the XMLEncoder class.
PropertyEditor	PropertyDescriptor.createPropertyEditor(Object bean) Constructs an instance of a property editor using the current property editor class.
boolean	IndexedPropertyDescriptor.equals(Object obj) Compares this PropertyDescriptor against the specified object.
boolean	PropertyDescriptor.equals(Object obj) Compares this PropertyDescriptor against the specified object.
void	PropertyChangeSupport.fireIndexedPropertyChange(String propertyName, int index, Object oldValue, Object newValue) Reports a bound indexed property update to listeners that have been registered to track updates of all properties or a property with the specified name.
void	PropertyChangeSupport.firePropertyChange(String propertyName, Object oldValue, Object newValue) Reports a bound property update to listeners that have been registered to track updates of all properties or a property with the specified name.
void	VetoableChangeSupport.fireVetoableChange(String propertyName, Object oldValue, Object newValue) Reports a constrained property update to listeners that have been registered to track updates of all properties or a property with the specified name.
Object	Encoder.get(Object oldInstance) Returns a tentative value for oldInstance in the environment created by this stream.
static Object	Beans.getInstanceOf(Object bean, Class<?> targetType) From a given bean, obtain an object representing a specified type view of that source object.
protected void	PersistenceDelegate.initialize(Class<?> type, Object oldInstance, Object newInstance, Encoder out) Produce a series of statements with side effects on newInstance so that the new instance becomes equivalent to oldInstance.
protected void	DefaultPersistenceDelegate.initialize(Class<?> type, Object oldInstance, Object newInstance, Encoder out) This default implementation of the initialize method assumes all state held in objects of this type is exposed via the matching pairs of "setter" and "getter" methods in the order they are returned by the Introspector.
protected abstract Expression	PersistenceDelegate.instantiate(Object oldInstance, Encoder out) Returns an expression whose value is oldInstance.
protected Expression	DefaultPersistenceDelegate.instantiate(Object oldInstance, Encoder out) This default implementation of the instantiate method returns an expression containing the predefined method name "new" which denotes a call to a constructor with the arguments as specified in the DefaultPersistenceDelegate's constructor.
Object	EventHandler.invoke(Object proxy, Method method, Object[] arguments) Extract the appropriate property value from the event and pass it to the action associated with this EventHandler.
Object	EventHandler.invoke(Object proxy, Method method, Object[] arguments) Extract the appropriate property value from the event and pass it to the action associated with this EventHandler.
static boolean	Beans.isInstanceOf(Object bean, Class<?> targetType) Check if a bean can be viewed as a given target type.
protected boolean	PersistenceDelegate.mutatesTo(Object oldInstance, Object newInstance) Returns true if an equivalent copy of oldInstance may be created by applying a series of statements to newInstance.
protected boolean	DefaultPersistenceDelegate.mutatesTo(Object oldInstance, Object newInstance) If the number of arguments in the specified constructor is non-zero and the class of oldInstance explicitly declares an "equals" method this method returns the value of oldInstance.equals(newInstance).
Object	Encoder.remove(Object oldInstance) Removes the entry for this instance, returning the old entry.
void	Customizer.setObject(Object bean) Set the object to be customized.
void	XMLDecoder.setOwner(Object owner) Sets the owner of this decoder to owner.
void	XMLEncoder.setOwner(Object owner) Sets the owner of this encoder to owner.
void	PropertyChangeEvent.setPropagationId(Object propagationId) Sets the propagationId object for the event.
void	PropertyEditorSupport.setSource(Object source) Sets the source bean.
void	Expression.setValue(Object value) Sets the value of this expression to value.
void	PropertyEditor.setValue(Object value) Set (or change) the object that is to be edited.
void	PropertyEditorSupport.setValue(Object value) Set (or change) the object that is to be edited.
void	FeatureDescriptor.setValue(String attributeName, Object value) Associate a named attribute with this feature.
protected void	Encoder.writeObject(Object o) Write the specified object to the output stream.
void	XMLEncoder.writeObject(Object o) Write an XML representation of the specified object to the output.
void	PersistenceDelegate.writeObject(Object oldInstance, Encoder out) The writeObject is a single entry point to the persistence and is used by a Encoder in the traditional mode of delegation.

Constructors in java.beans with parameters of type Object

Constructor and Description
EventHandler(Object target, String action, String eventPropertyName, String listenerMethodName) Creates a new EventHandler object; you generally use one of the create methods instead of invoking this constructor directly.
Expression(Object value, Object target, String methodName, Object[] arguments) Creates a new Expression object with the specified value for the specified target object to invoke the method specified by the name and by the array of arguments.
Expression(Object value, Object target, String methodName, Object[] arguments) Creates a new Expression object with the specified value for the specified target object to invoke the method specified by the name and by the array of arguments.
Expression(Object target, String methodName, Object[] arguments) Creates a new Expression object for the specified target object to invoke the method specified by the name and by the array of arguments.
Expression(Object target, String methodName, Object[] arguments) Creates a new Expression object for the specified target object to invoke the method specified by the name and by the array of arguments.
IndexedPropertyChangeEvent(Object source, String propertyName, Object oldValue, Object newValue, int index) Constructs a new IndexedPropertyChangeEvent object.
PropertyChangeEvent(Object source, String propertyName, Object oldValue, Object newValue) Constructs a new PropertyChangeEvent.
PropertyChangeSupport(Object sourceBean) Constructs a PropertyChangeSupport object.
PropertyEditorSupport(Object source) Constructs a PropertyEditorSupport object.
Statement(Object target, String methodName, Object[] arguments) Creates a new Statement object for the specified target object to invoke the method specified by the name and by the array of arguments.
Statement(Object target, String methodName, Object[] arguments) Creates a new Statement object for the specified target object to invoke the method specified by the name and by the array of arguments.
VetoableChangeSupport(Object sourceBean) Constructs a VetoableChangeSupport object.
XMLDecoder(InputStream in, Object owner) Creates a new input stream for reading archives created by the XMLEncoder class.
XMLDecoder(InputStream in, Object owner, ExceptionListener exceptionListener) Creates a new input stream for reading archives created by the XMLEncoder class.
XMLDecoder(InputStream in, Object owner, ExceptionListener exceptionListener, ClassLoader cl) Creates a new input stream for reading archives created by the XMLEncoder class.

Uses of Object in java.beans.beancontext

Subclasses of Object in java.beans.beancontext

Modifier and Type	Class and Description
class	BeanContextChildSupport This is a general support class to provide support for implementing the BeanContextChild protocol.
class	BeanContextEvent BeanContextEvent is the abstract root event class for all events emitted from, and pertaining to the semantics of, a BeanContext.
class	BeanContextMembershipEvent A BeanContextMembershipEvent encapsulates the list of children added to, or removed from, the membership of a particular BeanContext.
class	BeanContextServiceAvailableEvent This event type is used by the BeanContextServicesListener in order to identify the service being registered.
class	BeanContextServiceRevokedEvent This event type is used by the BeanContextServiceRevokedListener in order to identify the service being revoked.
class	BeanContextServicesSupport This helper class provides a utility implementation of the java.beans.beancontext.BeanContextServices interface.
protected class	BeanContextServicesSupport.BCSSChild
protected class	BeanContextServicesSupport.BCSSProxyServiceProvider
protected static class	BeanContextServicesSupport.BCSSServiceProvider subclasses may subclass this nested class to add behaviors for each BeanContextServicesProvider.
class	BeanContextSupport This helper class provides a utility implementation of the java.beans.beancontext.BeanContext interface.
protected class	BeanContextSupport.BCSChild
protected static class	BeanContextSupport.BCSIterator protected final subclass that encapsulates an iterator but implements a noop remove() method.

Fields in java.beans.beancontext declared as Object

Modifier and Type	Field and Description
static Object	BeanContext.globalHierarchyLock This global lock is used by both BeanContext and BeanContextServices implementors to serialize changes in a BeanContext hierarchy and any service requests etc.

Methods in java.beans.beancontext that return Object

Modifier and Type	Method and Description
protected Object[]	BeanContextSupport.copyChildren() Gets a copy of the this BeanContext's children.
Object	BeanContextServicesSupport.getService(BeanContextChild child, Object requestor, Class serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) obtain a service which may be delegated
Object	BeanContextServices.getService(BeanContextChild child, Object requestor, Class serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) A BeanContextChild, or any arbitrary object associated with a BeanContextChild, may obtain a reference to a currently registered service from its nesting BeanContextServices via invocation of this method.
Object	BeanContextServicesSupport.BCSSProxyServiceProvider.getService(BeanContextServices bcs, Object requestor, Class serviceClass, Object serviceSelector)
Object	BeanContextServiceProvider.getService(BeanContextServices bcs, Object requestor, Class serviceClass, Object serviceSelector) Invoked by BeanContextServices, this method requests an instance of a service from this BeanContextServiceProvider.
Object	BeanContext.instantiateChild(String beanName) Instantiate the javaBean named as a child of this BeanContext.
Object	BeanContextSupport.instantiateChild(String beanName) The instantiateChild method is a convenience hook in BeanContext to simplify the task of instantiating a Bean, nested, into a BeanContext.
Object	BeanContextSupport.BCSIterator.next()
Object[]	BeanContextSupport.toArray() Gets all JavaBean or BeanContext instances currently nested in this BeanContext.
Object[]	BeanContextMembershipEvent.toArray() Gets the array of children affected by this event.
Object[]	BeanContextSupport.toArray(Object[] arry) Gets an array containing all children of this BeanContext that match the types contained in arry.

Methods in java.beans.beancontext with parameters of type Object

Modifier and Type	Method and Description
boolean	BeanContextSupport.add(Object targetChild) Adds/nests a child within this BeanContext.
protected void	BeanContextSupport.childDeserializedHook(Object child, BeanContextSupport.BCSChild bcsc) Called by readObject with the newly deserialized child and BCSChild.
protected void	BeanContextSupport.childJustAddedHook(Object child, BeanContextSupport.BCSChild bcsc) subclasses may override this method to simply extend add() semantics after the child has been added and before the event notification has occurred.
protected void	BeanContextSupport.childJustRemovedHook(Object child, BeanContextSupport.BCSChild bcsc) subclasses may override this method to simply extend remove() semantics after the child has been removed and before the event notification has occurred.
protected void	BeanContextServicesSupport.childJustRemovedHook(Object child, BeanContextSupport.BCSChild bcsc) called from superclass child removal operations after a child has been successfully removed.
boolean	BeanContextSupport.contains(Object o) Determines whether or not the specified object is currently a child of this BeanContext.
boolean	BeanContextMembershipEvent.contains(Object child) Is the child specified affected by the event?
boolean	BeanContextSupport.containsKey(Object o) Determines whether or not the specified object is currently a child of this BeanContext.
protected BeanContextSupport.BCSChild	BeanContextSupport.createBCSChild(Object targetChild, Object peer) Subclasses can override this method to insert their own subclass of Child without having to override add() or the other Collection methods that add children to the set.
protected BeanContextSupport.BCSChild	BeanContextServicesSupport.createBCSChild(Object targetChild, Object peer) Subclasses can override this method to insert their own subclass of Child without having to override add() or the other Collection methods that add children to the set.
void	BeanContextChildSupport.firePropertyChange(String name, Object oldValue, Object newValue) Report a bound property update to any registered listeners.
void	BeanContextChildSupport.fireVetoableChange(String name, Object oldValue, Object newValue) Report a vetoable property update to any registered listeners.
protected static BeanContextChild	BeanContextSupport.getChildBeanContextChild(Object child) Gets the BeanContextChild (if any) of the specified child
protected static BeanContextMembershipListener	BeanContextSupport.getChildBeanContextMembershipListener(Object child) Gets the BeanContextMembershipListener (if any) of the specified child
protected static BeanContextServicesListener	BeanContextServicesSupport.getChildBeanContextServicesListener(Object child) Gets the BeanContextServicesListener (if any) of the specified child.
protected static PropertyChangeListener	BeanContextSupport.getChildPropertyChangeListener(Object child) Gets the PropertyChangeListener (if any) of the specified child
protected static Serializable	BeanContextSupport.getChildSerializable(Object child) Gets the Serializable (if any) associated with the specified Child
protected static VetoableChangeListener	BeanContextSupport.getChildVetoableChangeListener(Object child) Gets the VetoableChangeListener (if any) of the specified child
protected static Visibility	BeanContextSupport.getChildVisibility(Object child) Gets the Component (if any) associated with the specified child.
Object	BeanContextServicesSupport.getService(BeanContextChild child, Object requestor, Class serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) obtain a service which may be delegated
Object	BeanContextServices.getService(BeanContextChild child, Object requestor, Class serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) A BeanContextChild, or any arbitrary object associated with a BeanContextChild, may obtain a reference to a currently registered service from its nesting BeanContextServices via invocation of this method.
Object	BeanContextServicesSupport.BCSSProxyServiceProvider.getService(BeanContextServices bcs, Object requestor, Class serviceClass, Object serviceSelector)
Object	BeanContextServiceProvider.getService(BeanContextServices bcs, Object requestor, Class serviceClass, Object serviceSelector) Invoked by BeanContextServices, this method requests an instance of a service from this BeanContextServiceProvider.
void	BeanContextServicesSupport.releaseService(BeanContextChild child, Object requestor, Object service) release a service
void	BeanContextServices.releaseService(BeanContextChild child, Object requestor, Object service) Releases a BeanContextChild's (or any arbitrary object associated with a BeanContextChild) reference to the specified service by calling releaseService() on the underlying BeanContextServiceProvider.
void	BeanContextServicesSupport.BCSSProxyServiceProvider.releaseService(BeanContextServices bcs, Object requestor, Object service)
void	BeanContextServiceProvider.releaseService(BeanContextServices bcs, Object requestor, Object service) Invoked by BeanContextServices, this method releases a nested BeanContextChild's (or any arbitrary object associated with a BeanContextChild) reference to the specified service.
boolean	BeanContextSupport.remove(Object targetChild) Removes a child from this BeanContext.
protected boolean	BeanContextSupport.remove(Object targetChild, boolean callChildSetBC) internal remove used when removal caused by unexpected setBeanContext or by remove() invocation.
Object[]	BeanContextSupport.toArray(Object[] arry) Gets an array containing all children of this BeanContext that match the types contained in arry.
protected boolean	BeanContextSupport.validatePendingAdd(Object targetChild) Subclasses of this class may override, or envelope, this method to add validation behavior for the BeanContext to examine child objects immediately prior to their being added to the BeanContext.
protected boolean	BeanContextSupport.validatePendingRemove(Object targetChild) Subclasses of this class may override, or envelope, this method to add validation behavior for the BeanContext to examine child objects immediately prior to their being removed from the BeanContext.

Constructors in java.beans.beancontext with parameters of type Object

Constructor and Description
BeanContextMembershipEvent(BeanContext bc, Object[] changes) Contruct a BeanContextMembershipEvent

Uses of Object in java.io

Subclasses of Object in java.io

Modifier and Type	Class and Description
class	BufferedInputStream A BufferedInputStream adds functionality to another input stream-namely, the ability to buffer the input and to support the mark and reset methods.
class	BufferedOutputStream The class implements a buffered output stream.
class	BufferedReader Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.
class	BufferedWriter Writes text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.
class	ByteArrayInputStream A ByteArrayInputStream contains an internal buffer that contains bytes that may be read from the stream.
class	ByteArrayOutputStream This class implements an output stream in which the data is written into a byte array.
class	CharArrayReader This class implements a character buffer that can be used as a character-input stream.
class	CharArrayWriter This class implements a character buffer that can be used as an Writer.
class	CharConversionException Base class for character conversion exceptions.
class	Console Methods to access the character-based console device, if any, associated with the current Java virtual machine.
class	DataInputStream A data input stream lets an application read primitive Java data types from an underlying input stream in a machine-independent way.
class	DataOutputStream A data output stream lets an application write primitive Java data types to an output stream in a portable way.
class	EOFException Signals that an end of file or end of stream has been reached unexpectedly during input.
class	File An abstract representation of file and directory pathnames.
class	FileDescriptor Instances of the file descriptor class serve as an opaque handle to the underlying machine-specific structure representing an open file, an open socket, or another source or sink of bytes.
class	FileInputStream A FileInputStream obtains input bytes from a file in a file system.
class	FileNotFoundException Signals that an attempt to open the file denoted by a specified pathname has failed.
class	FileOutputStream A file output stream is an output stream for writing data to a File or to a FileDescriptor.
class	FilePermission This class represents access to a file or directory.
class	FileReader Convenience class for reading character files.
class	FileWriter Convenience class for writing character files.
class	FilterInputStream A FilterInputStream contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
class	FilterOutputStream This class is the superclass of all classes that filter output streams.
class	FilterReader Abstract class for reading filtered character streams.
class	FilterWriter Abstract class for writing filtered character streams.
class	InputStream This abstract class is the superclass of all classes representing an input stream of bytes.
class	InputStreamReader An InputStreamReader is a bridge from byte streams to character streams: It reads bytes and decodes them into characters using a specified charset.
class	InterruptedIOException Signals that an I/O operation has been interrupted.
class	InvalidClassException Thrown when the Serialization runtime detects one of the following problems with a Class.
class	InvalidObjectException Indicates that one or more deserialized objects failed validation tests.
class	IOError Thrown when a serious I/O error has occurred.
class	IOException Signals that an I/O exception of some sort has occurred.
class	LineNumberInputStream Deprecated. This class incorrectly assumes that bytes adequately represent characters. As of JDK 1.1, the preferred way to operate on character streams is via the new character-stream classes, which include a class for counting line numbers.
class	LineNumberReader A buffered character-input stream that keeps track of line numbers.
class	NotActiveException Thrown when serialization or deserialization is not active.
class	NotSerializableException Thrown when an instance is required to have a Serializable interface.
class	ObjectInputStream An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
static class	ObjectInputStream.GetField Provide access to the persistent fields read from the input stream.
class	ObjectOutputStream An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
static class	ObjectOutputStream.PutField Provide programmatic access to the persistent fields to be written to ObjectOutput.
class	ObjectStreamClass Serialization's descriptor for classes.
class	ObjectStreamException Superclass of all exceptions specific to Object Stream classes.
class	ObjectStreamField A description of a Serializable field from a Serializable class.
class	OptionalDataException Exception indicating the failure of an object read operation due to unread primitive data, or the end of data belonging to a serialized object in the stream.
class	OutputStream This abstract class is the superclass of all classes representing an output stream of bytes.
class	OutputStreamWriter An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified charset.
class	PipedInputStream A piped input stream should be connected to a piped output stream; the piped input stream then provides whatever data bytes are written to the piped output stream.
class	PipedOutputStream A piped output stream can be connected to a piped input stream to create a communications pipe.
class	PipedReader Piped character-input streams.
class	PipedWriter Piped character-output streams.
class	PrintStream A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
class	PrintWriter Prints formatted representations of objects to a text-output stream.
class	PushbackInputStream A PushbackInputStream adds functionality to another input stream, namely the ability to "push back" or "unread" one byte.
class	PushbackReader A character-stream reader that allows characters to be pushed back into the stream.
class	RandomAccessFile Instances of this class support both reading and writing to a random access file.
class	Reader Abstract class for reading character streams.
class	SequenceInputStream A SequenceInputStream represents the logical concatenation of other input streams.
class	SerializablePermission This class is for Serializable permissions.
class	StreamCorruptedException Thrown when control information that was read from an object stream violates internal consistency checks.
class	StreamTokenizer The StreamTokenizer class takes an input stream and parses it into "tokens", allowing the tokens to be read one at a time.
class	StringBufferInputStream Deprecated. This class does not properly convert characters into bytes. As of JDK 1.1, the preferred way to create a stream from a string is via the StringReader class.
class	StringReader A character stream whose source is a string.
class	StringWriter A character stream that collects its output in a string buffer, which can then be used to construct a string.
class	SyncFailedException Signals that a sync operation has failed.
class	UnsupportedEncodingException The Character Encoding is not supported.
class	UTFDataFormatException Signals that a malformed string in modified UTF-8 format has been read in a data input stream or by any class that implements the data input interface.
class	WriteAbortedException Signals that one of the ObjectStreamExceptions was thrown during a write operation.
class	Writer Abstract class for writing to character streams.

Fields in java.io declared as Object

Modifier and Type	Field and Description
protected Object	Writer.lock The object used to synchronize operations on this stream.
protected Object	Reader.lock The object used to synchronize operations on this stream.

Methods in java.io that return Object

Modifier and Type	Method and Description
abstract Object	ObjectInputStream.GetField.get(String name, Object val) Get the value of the named Object field from the persistent field.
Object	ObjectInputStream.readObject() Read an object from the ObjectInputStream.
Object	ObjectInput.readObject() Read and return an object.
protected Object	ObjectInputStream.readObjectOverride() This method is called by trusted subclasses of ObjectOutputStream that constructed ObjectOutputStream using the protected no-arg constructor.
Object	ObjectInputStream.readUnshared() Reads an "unshared" object from the ObjectInputStream.
protected Object	ObjectOutputStream.replaceObject(Object obj) This method will allow trusted subclasses of ObjectOutputStream to substitute one object for another during serialization.
protected Object	ObjectInputStream.resolveObject(Object obj) This method will allow trusted subclasses of ObjectInputStream to substitute one object for another during deserialization.

Methods in java.io with parameters of type Object

Modifier and Type	Method and Description
int	ObjectStreamField.compareTo(Object obj) Compare this field with another ObjectStreamField.
boolean	File.equals(Object obj) Tests this abstract pathname for equality with the given object.
boolean	FilePermission.equals(Object obj) Checks two FilePermission objects for equality.
PrintStream	PrintStream.format(Locale l, String format, Object... args) Writes a formatted string to this output stream using the specified format string and arguments.
PrintWriter	PrintWriter.format(Locale l, String format, Object... args) Writes a formatted string to this writer using the specified format string and arguments.
PrintStream	PrintStream.format(String format, Object... args) Writes a formatted string to this output stream using the specified format string and arguments.
Console	Console.format(String fmt, Object... args) Writes a formatted string to this console's output stream using the specified format string and arguments.
PrintWriter	PrintWriter.format(String format, Object... args) Writes a formatted string to this writer using the specified format string and arguments.
abstract Object	ObjectInputStream.GetField.get(String name, Object val) Get the value of the named Object field from the persistent field.
void	PrintStream.print(Object obj) Prints an object.
void	PrintWriter.print(Object obj) Prints an object.
PrintStream	PrintStream.printf(Locale l, String format, Object... args) A convenience method to write a formatted string to this output stream using the specified format string and arguments.
PrintWriter	PrintWriter.printf(Locale l, String format, Object... args) A convenience method to write a formatted string to this writer using the specified format string and arguments.
PrintStream	PrintStream.printf(String format, Object... args) A convenience method to write a formatted string to this output stream using the specified format string and arguments.
Console	Console.printf(String format, Object... args) A convenience method to write a formatted string to this console's output stream using the specified format string and arguments.
PrintWriter	PrintWriter.printf(String format, Object... args) A convenience method to write a formatted string to this writer using the specified format string and arguments.
void	PrintStream.println(Object x) Prints an Object and then terminate the line.
void	PrintWriter.println(Object x) Prints an Object and then terminates the line.
abstract void	ObjectOutputStream.PutField.put(String name, Object val) Put the value of the named Object field into the persistent field.
String	Console.readLine(String fmt, Object... args) Provides a formatted prompt, then reads a single line of text from the console.
char[]	Console.readPassword(String fmt, Object... args) Provides a formatted prompt, then reads a password or passphrase from the console with echoing disabled.
protected Object	ObjectOutputStream.replaceObject(Object obj) This method will allow trusted subclasses of ObjectOutputStream to substitute one object for another during serialization.
protected Object	ObjectInputStream.resolveObject(Object obj) This method will allow trusted subclasses of ObjectInputStream to substitute one object for another during deserialization.
void	ObjectOutput.writeObject(Object obj) Write an object to the underlying storage or stream.
void	ObjectOutputStream.writeObject(Object obj) Write the specified object to the ObjectOutputStream.
protected void	ObjectOutputStream.writeObjectOverride(Object obj) Method used by subclasses to override the default writeObject method.
void	ObjectOutputStream.writeUnshared(Object obj) Writes an "unshared" object to the ObjectOutputStream.

Constructors in java.io with parameters of type Object

Constructor and Description
Reader(Object lock) Creates a new character-stream reader whose critical sections will synchronize on the given object.
Writer(Object lock) Creates a new character-stream writer whose critical sections will synchronize on the given object.

Uses of Object in java.lang

Subclasses of Object in java.lang

Modifier and Type	Class and Description
class	AbstractMethodError Thrown when an application tries to call an abstract method.
class	ArithmeticException Thrown when an exceptional arithmetic condition has occurred.
class	ArrayIndexOutOfBoundsException Thrown to indicate that an array has been accessed with an illegal index.
class	ArrayStoreException Thrown to indicate that an attempt has been made to store the wrong type of object into an array of objects.
class	AssertionError Thrown to indicate that an assertion has failed.
class	Boolean The Boolean class wraps a value of the primitive type boolean in an object.
class	BootstrapMethodError Thrown to indicate that an invokedynamic instruction has failed to find its bootstrap method, or the bootstrap method has failed to provide a call site with a target of the correct method type.
class	Byte The Byte class wraps a value of primitive type byte in an object.
class	Character The Character class wraps a value of the primitive type char in an object.
static class	Character.Subset Instances of this class represent particular subsets of the Unicode character set.
static class	Character.UnicodeBlock A family of character subsets representing the character blocks in the Unicode specification.
class	Class<T> Instances of the class Class represent classes and interfaces in a running Java application.
class	ClassCastException Thrown to indicate that the code has attempted to cast an object to a subclass of which it is not an instance.
class	ClassCircularityError Thrown when the Java Virtual Machine detects a circularity in the superclass hierarchy of a class being loaded.
class	ClassFormatError Thrown when the Java Virtual Machine attempts to read a class file and determines that the file is malformed or otherwise cannot be interpreted as a class file.
class	ClassLoader A class loader is an object that is responsible for loading classes.
class	ClassNotFoundException Thrown when an application tries to load in a class through its string name using: The forName method in class Class.
class	ClassValue<T> Lazily associate a computed value with (potentially) every type.
class	CloneNotSupportedException Thrown to indicate that the clone method in class Object has been called to clone an object, but that the object's class does not implement the Cloneable interface.
class	Compiler The Compiler class is provided to support Java-to-native-code compilers and related services.
class	Double The Double class wraps a value of the primitive type double in an object.
class	Enum<E extends Enum<E>> This is the common base class of all Java language enumeration types.
class	EnumConstantNotPresentException Thrown when an application tries to access an enum constant by name and the enum type contains no constant with the specified name.
class	Error An Error is a subclass of Throwable that indicates serious problems that a reasonable application should not try to catch.
class	Exception The class Exception and its subclasses are a form of Throwable that indicates conditions that a reasonable application might want to catch.
class	ExceptionInInitializerError Signals that an unexpected exception has occurred in a static initializer.
class	Float The Float class wraps a value of primitive type float in an object.
class	IllegalAccessError Thrown if an application attempts to access or modify a field, or to call a method that it does not have access to.
class	IllegalAccessException An IllegalAccessException is thrown when an application tries to reflectively create an instance (other than an array), set or get a field, or invoke a method, but the currently executing method does not have access to the definition of the specified class, field, method or constructor.
class	IllegalArgumentException Thrown to indicate that a method has been passed an illegal or inappropriate argument.
class	IllegalMonitorStateException Thrown to indicate that a thread has attempted to wait on an object's monitor or to notify other threads waiting on an object's monitor without owning the specified monitor.
class	IllegalStateException Signals that a method has been invoked at an illegal or inappropriate time.
class	IllegalThreadStateException Thrown to indicate that a thread is not in an appropriate state for the requested operation.
class	IncompatibleClassChangeError Thrown when an incompatible class change has occurred to some class definition.
class	IndexOutOfBoundsException Thrown to indicate that an index of some sort (such as to an array, to a string, or to a vector) is out of range.
class	InheritableThreadLocal<T> This class extends ThreadLocal to provide inheritance of values from parent thread to child thread: when a child thread is created, the child receives initial values for all inheritable thread-local variables for which the parent has values.
class	InstantiationError Thrown when an application tries to use the Java new construct to instantiate an abstract class or an interface.
class	InstantiationException Thrown when an application tries to create an instance of a class using the newInstance method in class Class, but the specified class object cannot be instantiated.
class	Integer The Integer class wraps a value of the primitive type int in an object.
class	InternalError Thrown to indicate some unexpected internal error has occurred in the Java Virtual Machine.
class	InterruptedException Thrown when a thread is waiting, sleeping, or otherwise occupied, and the thread is interrupted, either before or during the activity.
class	LinkageError Subclasses of LinkageError indicate that a class has some dependency on another class; however, the latter class has incompatibly changed after the compilation of the former class.
class	Long The Long class wraps a value of the primitive type long in an object.
class	Math The class Math contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
class	NegativeArraySizeException Thrown if an application tries to create an array with negative size.
class	NoClassDefFoundError Thrown if the Java Virtual Machine or a ClassLoader instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the new expression) and no definition of the class could be found.
class	NoSuchFieldError Thrown if an application tries to access or modify a specified field of an object, and that object no longer has that field.
class	NoSuchFieldException Signals that the class doesn't have a field of a specified name.
class	NoSuchMethodError Thrown if an application tries to call a specified method of a class (either static or instance), and that class no longer has a definition of that method.
class	NoSuchMethodException Thrown when a particular method cannot be found.
class	NullPointerException Thrown when an application attempts to use null in a case where an object is required.
class	Number The abstract class Number is the superclass of classes BigDecimal, BigInteger, Byte, Double, Float, Integer, Long, and Short.
class	NumberFormatException Thrown to indicate that the application has attempted to convert a string to one of the numeric types, but that the string does not have the appropriate format.
class	OutOfMemoryError Thrown when the Java Virtual Machine cannot allocate an object because it is out of memory, and no more memory could be made available by the garbage collector.
class	Package Package objects contain version information about the implementation and specification of a Java package.
class	Process The ProcessBuilder.start() and Runtime.exec methods create a native process and return an instance of a subclass of Process that can be used to control the process and obtain information about it.
class	ProcessBuilder This class is used to create operating system processes.
static class	ProcessBuilder.Redirect Represents a source of subprocess input or a destination of subprocess output.
class	ReflectiveOperationException Common superclass of exceptions thrown by reflective operations in core reflection.
class	Runtime Every Java application has a single instance of class Runtime that allows the application to interface with the environment in which the application is running.
class	RuntimeException RuntimeException is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.
class	RuntimePermission This class is for runtime permissions.
class	SecurityException Thrown by the security manager to indicate a security violation.
class	SecurityManager The security manager is a class that allows applications to implement a security policy.
class	Short The Short class wraps a value of primitive type short in an object.
class	StackOverflowError Thrown when a stack overflow occurs because an application recurses too deeply.
class	StackTraceElement An element in a stack trace, as returned by Throwable.getStackTrace().
class	StrictMath The class StrictMath contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
class	String The String class represents character strings.
class	StringBuffer A thread-safe, mutable sequence of characters.
class	StringBuilder A mutable sequence of characters.
class	StringIndexOutOfBoundsException Thrown by String methods to indicate that an index is either negative or greater than the size of the string.
class	System The System class contains several useful class fields and methods.
class	Thread A thread is a thread of execution in a program.
class	ThreadDeath An instance of ThreadDeath is thrown in the victim thread when the (deprecated) Thread.stop() method is invoked.
class	ThreadGroup A thread group represents a set of threads.
class	ThreadLocal<T> This class provides thread-local variables.
class	Throwable The Throwable class is the superclass of all errors and exceptions in the Java language.
class	TypeNotPresentException Thrown when an application tries to access a type using a string representing the type's name, but no definition for the type with the specified name can be found.
class	UnknownError Thrown when an unknown but serious exception has occurred in the Java Virtual Machine.
class	UnsatisfiedLinkError Thrown if the Java Virtual Machine cannot find an appropriate native-language definition of a method declared native.
class	UnsupportedClassVersionError Thrown when the Java Virtual Machine attempts to read a class file and determines that the major and minor version numbers in the file are not supported.
class	UnsupportedOperationException Thrown to indicate that the requested operation is not supported.
class	VerifyError Thrown when the "verifier" detects that a class file, though well formed, contains some sort of internal inconsistency or security problem.
class	VirtualMachineError Thrown to indicate that the Java Virtual Machine is broken or has run out of resources necessary for it to continue operating.
class	Void The Void class is an uninstantiable placeholder class to hold a reference to the Class object representing the Java keyword void.

Methods in java.lang that return Object

Modifier and Type	Method and Description
protected Object	Thread.clone() Throws CloneNotSupportedException as a Thread can not be meaningfully cloned.
protected Object	Object.clone() Creates and returns a copy of this object.
protected Object	Enum.clone() Throws CloneNotSupportedException.
static Object	Compiler.command(Object any) Examines the argument type and its fields and perform some documented operation.
protected Object	ClassLoader.getClassLoadingLock(String className) Returns the lock object for class loading operations.
T[]	Class.getEnumConstants() Returns the elements of this enum class or null if this Class object does not represent an enum type.
Object	SecurityManager.getSecurityContext() Creates an object that encapsulates the current execution environment.
Object[]	Class.getSigners() Gets the signers of this class.

Methods in java.lang with parameters of type Object

Modifier and Type	Method and Description
StringBuffer	StringBuffer.append(Object obj)
StringBuilder	StringBuilder.append(Object obj)
static void	System.arraycopy(Object src, int srcPos, Object dest, int destPos, int length) Copies an array from the specified source array, beginning at the specified position, to the specified position of the destination array.
T	Class.cast(Object obj) Casts an object to the class or interface represented by this Class object.
void	SecurityManager.checkConnect(String host, int port, Object context) Throws a SecurityException if the specified security context is not allowed to open a socket connection to the specified host and port number.
void	SecurityManager.checkPermission(Permission perm, Object context) Throws a SecurityException if the specified security context is denied access to the resource specified by the given permission.
void	SecurityManager.checkRead(String file, Object context) Throws a SecurityException if the specified security context is not allowed to read the file specified by the string argument.
boolean	SecurityManager.checkTopLevelWindow(Object window) Returns false if the calling thread is not trusted to bring up the top-level window indicated by the window argument.
static Object	Compiler.command(Object any) Examines the argument type and its fields and perform some documented operation.
boolean	Short.equals(Object obj) Compares this object to the specified object.
boolean	Character.equals(Object obj) Compares this object against the specified object.
boolean	Character.Subset.equals(Object obj) Compares two Subset objects for equality.
boolean	Float.equals(Object obj) Compares this object against the specified object.
boolean	Double.equals(Object obj) Compares this object against the specified object.
boolean	Object.equals(Object obj) Indicates whether some other object is "equal to" this one.
boolean	Byte.equals(Object obj) Compares this object to the specified object.
boolean	Boolean.equals(Object obj) Returns true if and only if the argument is not null and is a Boolean object that represents the same boolean value as this object.
boolean	Integer.equals(Object obj) Compares this object to the specified object.
boolean	Enum.equals(Object other) Returns true if the specified object is equal to this enum constant.
boolean	Long.equals(Object obj) Compares this object to the specified object.
boolean	String.equals(Object anObject) Compares this string to the specified object.
boolean	ProcessBuilder.Redirect.equals(Object obj) Compares the specified object with this Redirect for equality.
boolean	StackTraceElement.equals(Object obj) Returns true if the specified object is another StackTraceElement instance representing the same execution point as this instance.
static String	String.format(Locale l, String format, Object... args) Returns a formatted string using the specified locale, format string, and arguments.
static String	String.format(String format, Object... args) Returns a formatted string using the specified format string and arguments.
static boolean	Thread.holdsLock(Object obj) Returns true if and only if the current thread holds the monitor lock on the specified object.
static int	System.identityHashCode(Object x) Returns the same hash code for the given object as would be returned by the default method hashCode(), whether or not the given object's class overrides hashCode().
StringBuffer	StringBuffer.insert(int offset, Object obj)
StringBuilder	StringBuilder.insert(int offset, Object obj)
boolean	Class.isInstance(Object obj) Determines if the specified Object is assignment-compatible with the object represented by this Class.
protected void	ClassLoader.setSigners(Class<?> c, Object[] signers) Sets the signers of a class.
static String	String.valueOf(Object obj) Returns the string representation of the Object argument.

Constructors in java.lang with parameters of type Object

Constructor and Description
AssertionError(Object detailMessage) Constructs an AssertionError with its detail message derived from the specified object, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

Uses of Object in java.lang.annotation

Subclasses of Object in java.lang.annotation

Modifier and Type	Class and Description
class	AnnotationFormatError Thrown when the annotation parser attempts to read an annotation from a class file and determines that the annotation is malformed.
class	AnnotationTypeMismatchException Thrown to indicate that a program has attempted to access an element of an annotation whose type has changed after the annotation was compiled (or serialized).
class	IncompleteAnnotationException Thrown to indicate that a program has attempted to access an element of an annotation type that was added to the annotation type definition after the annotation was compiled (or serialized).

Methods in java.lang.annotation with parameters of type Object

Modifier and Type	Method and Description
boolean	Annotation.equals(Object obj) Returns true if the specified object represents an annotation that is logically equivalent to this one.

Uses of Object in java.lang.instrument

Subclasses of Object in java.lang.instrument

Modifier and Type	Class and Description
class	ClassDefinition This class serves as a parameter block to the Instrumentation.redefineClasses method.
class	IllegalClassFormatException Thrown by an implementation of ClassFileTransformer.transform when its input parameters are invalid.
class	UnmodifiableClassException Thrown by an implementation of Instrumentation.redefineClasses when one of the specified classes cannot be modified.

Methods in java.lang.instrument with parameters of type Object

Modifier and Type	Method and Description
long	Instrumentation.getObjectSize(Object objectToSize) Returns an implementation-specific approximation of the amount of storage consumed by the specified object.

Uses of Object in java.lang.invoke

Subclasses of Object in java.lang.invoke

Modifier and Type	Class and Description
class	CallSite A CallSite is a holder for a variable MethodHandle, which is called its target.
class	ConstantCallSite A ConstantCallSite is a CallSite whose target is permanent, and can never be changed.
class	MethodHandle A method handle is a typed, directly executable reference to an underlying method, constructor, field, or similar low-level operation, with optional transformations of arguments or return values.
class	MethodHandleProxies This class consists exclusively of static methods that help adapt method handles to other JVM types, such as interfaces.
class	MethodHandles This class consists exclusively of static methods that operate on or return method handles.
static class	MethodHandles.Lookup A lookup object is a factory for creating method handles, when the creation requires access checking.
class	MethodType A method type represents the arguments and return type accepted and returned by a method handle, or the arguments and return type passed and expected by a method handle caller.
class	MutableCallSite A MutableCallSite is a CallSite whose target variable behaves like an ordinary field.
class	SwitchPoint A SwitchPoint is an object which can publish state transitions to other threads.
class	VolatileCallSite A VolatileCallSite is a CallSite whose target acts like a volatile variable.
class	WrongMethodTypeException Thrown to indicate that code has attempted to call a method handle via the wrong method type.

Methods in java.lang.invoke that return Object

Modifier and Type	Method and Description
Object	MethodHandle.invoke(Object... args) Invokes the method handle, allowing any caller type descriptor, and optionally performing conversions on arguments and return values.
Object	MethodHandle.invokeExact(Object... args) Invokes the method handle, allowing any caller type descriptor, but requiring an exact type match.
Object	MethodHandle.invokeWithArguments(List<?> arguments) Performs a variable arity invocation, passing the arguments in the given array to the method handle, as if via an inexact invoke from a call site which mentions only the type Object, and whose arity is the length of the argument array.
Object	MethodHandle.invokeWithArguments(Object... arguments) Performs a variable arity invocation, passing the arguments in the given array to the method handle, as if via an inexact invoke from a call site which mentions only the type Object, and whose arity is the length of the argument array.

Methods in java.lang.invoke with parameters of type Object

Modifier and Type	Method and Description
MethodHandle	MethodHandles.Lookup.bind(Object receiver, String name, MethodType type) Produces an early-bound method handle for a non-static method.
MethodHandle	MethodHandle.bindTo(Object x) Binds a value x to the first argument of a method handle, without invoking it.
static MethodHandle	MethodHandles.constant(Class<?> type, Object value) Produces a method handle of the requested return type which returns the given constant value every time it is invoked.
boolean	MethodType.equals(Object x) Compares the specified object with this type for equality.
static MethodHandle	MethodHandles.insertArguments(MethodHandle target, int pos, Object... values) Provides a target method handle with one or more bound arguments in advance of the method handle's invocation.
Object	MethodHandle.invoke(Object... args) Invokes the method handle, allowing any caller type descriptor, and optionally performing conversions on arguments and return values.
Object	MethodHandle.invokeExact(Object... args) Invokes the method handle, allowing any caller type descriptor, but requiring an exact type match.
Object	MethodHandle.invokeWithArguments(Object... arguments) Performs a variable arity invocation, passing the arguments in the given array to the method handle, as if via an inexact invoke from a call site which mentions only the type Object, and whose arity is the length of the argument array.
static boolean	MethodHandleProxies.isWrapperInstance(Object x) Determines if the given object was produced by a call to asInterfaceInstance.
static MethodHandle	MethodHandleProxies.wrapperInstanceTarget(Object x) Produces or recovers a target method handle which is behaviorally equivalent to the unique method of this wrapper instance.
static Class<?>	MethodHandleProxies.wrapperInstanceType(Object x) Recovers the unique single-method interface type for which this wrapper instance was created.

Uses of Object in java.lang.management

Subclasses of Object in java.lang.management

Modifier and Type	Class and Description
class	LockInfo Information about a lock.
class	ManagementFactory The ManagementFactory class is a factory class for getting managed beans for the Java platform.
class	ManagementPermission The permission which the SecurityManager will check when code that is running with a SecurityManager calls methods defined in the management interface for the Java platform.
class	MemoryNotificationInfo The information about a memory notification.
class	MemoryUsage A MemoryUsage object represents a snapshot of memory usage.
class	MonitorInfo Information about an object monitor lock.
class	ThreadInfo Thread information.

Uses of Object in java.lang.ref

Subclasses of Object in java.lang.ref

Modifier and Type	Class and Description
class	PhantomReference<T> Phantom reference objects, which are enqueued after the collector determines that their referents may otherwise be reclaimed.
class	Reference<T> Abstract base class for reference objects.
class	ReferenceQueue<T> Reference queues, to which registered reference objects are appended by the garbage collector after the appropriate reachability changes are detected.
class	SoftReference<T> Soft reference objects, which are cleared at the discretion of the garbage collector in response to memory demand.
class	WeakReference<T> Weak reference objects, which do not prevent their referents from being made finalizable, finalized, and then reclaimed.

Uses of Object in java.lang.reflect

Subclasses of Object in java.lang.reflect

Modifier and Type	Class and Description
class	AccessibleObject The AccessibleObject class is the base class for Field, Method and Constructor objects.
class	Array The Array class provides static methods to dynamically create and access Java arrays.
class	Constructor<T> Constructor provides information about, and access to, a single constructor for a class.
class	Field A Field provides information about, and dynamic access to, a single field of a class or an interface.
class	GenericSignatureFormatError Thrown when a syntactically malformed signature attribute is encountered by a reflective method that needs to interpret the generic signature information for a type, method or constructor.
class	InvocationTargetException InvocationTargetException is a checked exception that wraps an exception thrown by an invoked method or constructor.
class	MalformedParameterizedTypeException Thrown when a semantically malformed parameterized type is encountered by a reflective method that needs to instantiate it.
class	Method A Method provides information about, and access to, a single method on a class or interface.
class	Modifier The Modifier class provides static methods and constants to decode class and member access modifiers.
class	Proxy Proxy provides static methods for creating dynamic proxy classes and instances, and it is also the superclass of all dynamic proxy classes created by those methods.
class	ReflectPermission The Permission class for reflective operations.
class	UndeclaredThrowableException Thrown by a method invocation on a proxy instance if its invocation handler's invoke method throws a checked exception (a Throwable that is not assignable to RuntimeException or Error) that is not assignable to any of the exception types declared in the throws clause of the method that was invoked on the proxy instance and dispatched to the invocation handler.

Methods in java.lang.reflect that return Object

Modifier and Type	Method and Description
Object	Field.get(Object obj) Returns the value of the field represented by this Field, on the specified object.
static Object	Array.get(Object array, int index) Returns the value of the indexed component in the specified array object.
Object	Method.getDefaultValue() Returns the default value for the annotation member represented by this Method instance.
Object	InvocationHandler.invoke(Object proxy, Method method, Object[] args) Processes a method invocation on a proxy instance and returns the result.
Object	Method.invoke(Object obj, Object... args) Invokes the underlying method represented by this Method object, on the specified object with the specified parameters.
static Object	Array.newInstance(Class<?> componentType, int... dimensions) Creates a new array with the specified component type and dimensions.
static Object	Array.newInstance(Class<?> componentType, int length) Creates a new array with the specified component type and length.
static Object	Proxy.newProxyInstance(ClassLoader loader, Class<?>[] interfaces, InvocationHandler h) Returns an instance of a proxy class for the specified interfaces that dispatches method invocations to the specified invocation handler.

Methods in java.lang.reflect with parameters of type Object

Modifier and Type	Method and Description
boolean	Constructor.equals(Object obj) Compares this Constructor against the specified object.
boolean	Field.equals(Object obj) Compares this Field against the specified object.
boolean	Method.equals(Object obj) Compares this Method against the specified object.
Object	Field.get(Object obj) Returns the value of the field represented by this Field, on the specified object.
static Object	Array.get(Object array, int index) Returns the value of the indexed component in the specified array object.
boolean	Field.getBoolean(Object obj) Gets the value of a static or instance boolean field.
static boolean	Array.getBoolean(Object array, int index) Returns the value of the indexed component in the specified array object, as a boolean.
byte	Field.getByte(Object obj) Gets the value of a static or instance byte field.
static byte	Array.getByte(Object array, int index) Returns the value of the indexed component in the specified array object, as a byte.
char	Field.getChar(Object obj) Gets the value of a static or instance field of type char or of another primitive type convertible to type char via a widening conversion.
static char	Array.getChar(Object array, int index) Returns the value of the indexed component in the specified array object, as a char.
double	Field.getDouble(Object obj) Gets the value of a static or instance field of type double or of another primitive type convertible to type double via a widening conversion.
static double	Array.getDouble(Object array, int index) Returns the value of the indexed component in the specified array object, as a double.
float	Field.getFloat(Object obj) Gets the value of a static or instance field of type float or of another primitive type convertible to type float via a widening conversion.
static float	Array.getFloat(Object array, int index) Returns the value of the indexed component in the specified array object, as a float.
int	Field.getInt(Object obj) Gets the value of a static or instance field of type int or of another primitive type convertible to type int via a widening conversion.
static int	Array.getInt(Object array, int index) Returns the value of the indexed component in the specified array object, as an int.
static InvocationHandler	Proxy.getInvocationHandler(Object proxy) Returns the invocation handler for the specified proxy instance.
static int	Array.getLength(Object array) Returns the length of the specified array object, as an int.
long	Field.getLong(Object obj) Gets the value of a static or instance field of type long or of another primitive type convertible to type long via a widening conversion.
static long	Array.getLong(Object array, int index) Returns the value of the indexed component in the specified array object, as a long.
short	Field.getShort(Object obj) Gets the value of a static or instance field of type short or of another primitive type convertible to type short via a widening conversion.
static short	Array.getShort(Object array, int index) Returns the value of the indexed component in the specified array object, as a short.
Object	InvocationHandler.invoke(Object proxy, Method method, Object[] args) Processes a method invocation on a proxy instance and returns the result.
Object	InvocationHandler.invoke(Object proxy, Method method, Object[] args) Processes a method invocation on a proxy instance and returns the result.
Object	Method.invoke(Object obj, Object... args) Invokes the underlying method represented by this Method object, on the specified object with the specified parameters.
Object	Method.invoke(Object obj, Object... args) Invokes the underlying method represented by this Method object, on the specified object with the specified parameters.
T	Constructor.newInstance(Object... initargs) Uses the constructor represented by this Constructor object to create and initialize a new instance of the constructor's declaring class, with the specified initialization parameters.
static void	Array.set(Object array, int index, Object value) Sets the value of the indexed component of the specified array object to the specified new value.
void	Field.set(Object obj, Object value) Sets the field represented by this Field object on the specified object argument to the specified new value.
void	Field.setBoolean(Object obj, boolean z) Sets the value of a field as a boolean on the specified object.
static void	Array.setBoolean(Object array, int index, boolean z) Sets the value of the indexed component of the specified array object to the specified boolean value.
void	Field.setByte(Object obj, byte b) Sets the value of a field as a byte on the specified object.
static void	Array.setByte(Object array, int index, byte b) Sets the value of the indexed component of the specified array object to the specified byte value.
void	Field.setChar(Object obj, char c) Sets the value of a field as a char on the specified object.
static void	Array.setChar(Object array, int index, char c) Sets the value of the indexed component of the specified array object to the specified char value.
void	Field.setDouble(Object obj, double d) Sets the value of a field as a double on the specified object.
static void	Array.setDouble(Object array, int index, double d) Sets the value of the indexed component of the specified array object to the specified double value.
void	Field.setFloat(Object obj, float f) Sets the value of a field as a float on the specified object.
static void	Array.setFloat(Object array, int index, float f) Sets the value of the indexed component of the specified array object to the specified float value.
void	Field.setInt(Object obj, int i) Sets the value of a field as an int on the specified object.
static void	Array.setInt(Object array, int index, int i) Sets the value of the indexed component of the specified array object to the specified int value.
static void	Array.setLong(Object array, int index, long l) Sets the value of the indexed component of the specified array object to the specified long value.
void	Field.setLong(Object obj, long l) Sets the value of a field as a long on the specified object.
static void	Array.setShort(Object array, int index, short s) Sets the value of the indexed component of the specified array object to the specified short value.
void	Field.setShort(Object obj, short s) Sets the value of a field as a short on the specified object.

Uses of Object in java.math

Subclasses of Object in java.math

Modifier and Type	Class and Description
class	BigDecimal Immutable, arbitrary-precision signed decimal numbers.
class	BigInteger Immutable arbitrary-precision integers.
class	MathContext Immutable objects which encapsulate the context settings which describe certain rules for numerical operators, such as those implemented by the BigDecimal class.

Methods in java.math with parameters of type Object

Modifier and Type	Method and Description
boolean	BigDecimal.equals(Object x) Compares this BigDecimal with the specified Object for equality.
boolean	BigInteger.equals(Object x) Compares this BigInteger with the specified Object for equality.
boolean	MathContext.equals(Object x) Compares this MathContext with the specified Object for equality.

Uses of Object in java.net

Subclasses of Object in java.net

Modifier and Type	Class and Description
class	Authenticator The class Authenticator represents an object that knows how to obtain authentication for a network connection.
class	BindException Signals that an error occurred while attempting to bind a socket to a local address and port.
class	CacheRequest Represents channels for storing resources in the ResponseCache.
class	CacheResponse Represent channels for retrieving resources from the ResponseCache.
class	ContentHandler The abstract class ContentHandler is the superclass of all classes that read an Object from a URLConnection.
class	CookieHandler A CookieHandler object provides a callback mechanism to hook up a HTTP state management policy implementation into the HTTP protocol handler.
class	CookieManager CookieManager provides a concrete implementation of CookieHandler, which separates the storage of cookies from the policy surrounding accepting and rejecting cookies.
class	DatagramPacket This class represents a datagram packet.
class	DatagramSocket This class represents a socket for sending and receiving datagram packets.
class	DatagramSocketImpl Abstract datagram and multicast socket implementation base class.
class	HttpCookie An HttpCookie object represents an http cookie, which carries state information between server and user agent.
class	HttpRetryException Thrown to indicate that a HTTP request needs to be retried but cannot be retried automatically, due to streaming mode being enabled.
class	HttpURLConnection A URLConnection with support for HTTP-specific features.
class	IDN Provides methods to convert internationalized domain names (IDNs) between a normal Unicode representation and an ASCII Compatible Encoding (ACE) representation.
class	Inet4Address This class represents an Internet Protocol version 4 (IPv4) address.
class	Inet6Address This class represents an Internet Protocol version 6 (IPv6) address.
class	InetAddress This class represents an Internet Protocol (IP) address.
class	InetSocketAddress This class implements an IP Socket Address (IP address + port number) It can also be a pair (hostname + port number), in which case an attempt will be made to resolve the hostname.
class	InterfaceAddress This class represents a Network Interface address.
class	JarURLConnection A URL Connection to a Java ARchive (JAR) file or an entry in a JAR file.
class	MalformedURLException Thrown to indicate that a malformed URL has occurred.
class	MulticastSocket The multicast datagram socket class is useful for sending and receiving IP multicast packets.
class	NetPermission This class is for various network permissions.
class	NetworkInterface This class represents a Network Interface made up of a name, and a list of IP addresses assigned to this interface.
class	NoRouteToHostException Signals that an error occurred while attempting to connect a socket to a remote address and port.
class	PasswordAuthentication The class PasswordAuthentication is a data holder that is used by Authenticator.
class	PortUnreachableException Signals that an ICMP Port Unreachable message has been received on a connected datagram.
class	ProtocolException Thrown to indicate that there is an error in the underlying protocol, such as a TCP error.
class	ProxySelector Selects the proxy server to use, if any, when connecting to the network resource referenced by a URL.
class	ResponseCache Represents implementations of URLConnection caches.
class	SecureCacheResponse Represents a cache response originally retrieved through secure means, such as TLS.
class	ServerSocket This class implements server sockets.
class	Socket This class implements client sockets (also called just "sockets").
class	SocketAddress This class represents a Socket Address with no protocol attachment.
class	SocketException Thrown to indicate that there is an error creating or accessing a Socket.
class	SocketImpl The abstract class SocketImpl is a common superclass of all classes that actually implement sockets.
class	SocketPermission This class represents access to a network via sockets.
class	SocketTimeoutException Signals that a timeout has occurred on a socket read or accept.
class	StandardSocketOptions Defines the standard socket options.
class	UnknownHostException Thrown to indicate that the IP address of a host could not be determined.
class	UnknownServiceException Thrown to indicate that an unknown service exception has occurred.
class	URI Represents a Uniform Resource Identifier (URI) reference.
class	URISyntaxException Checked exception thrown to indicate that a string could not be parsed as a URI reference.
class	URL Class URL represents a Uniform Resource Locator, a pointer to a "resource" on the World Wide Web.
class	URLClassLoader This class loader is used to load classes and resources from a search path of URLs referring to both JAR files and directories.
class	URLConnection The abstract class URLConnection is the superclass of all classes that represent a communications link between the application and a URL.
class	URLDecoder Utility class for HTML form decoding.
class	URLEncoder Utility class for HTML form encoding.
class	URLStreamHandler The abstract class URLStreamHandler is the common superclass for all stream protocol handlers.

Methods in java.net that return Object

Modifier and Type	Method and Description
Object	HttpCookie.clone() Create and return a copy of this object.
Object	URLConnection.getContent() Retrieves the contents of this URL connection.
Object	URL.getContent() Gets the contents of this URL.
Object	URLConnection.getContent(Class[] classes) Retrieves the contents of this URL connection.
Object	URL.getContent(Class[] classes) Gets the contents of this URL.
abstract Object	ContentHandler.getContent(URLConnection urlc) Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object from it.
Object	ContentHandler.getContent(URLConnection urlc, Class[] classes) Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object that matches one of the types specified.
Object	SocketOptions.getOption(int optID) Fetch the value of an option.

Methods in java.net with parameters of type Object

Modifier and Type	Method and Description
boolean	SocketPermission.equals(Object obj) Checks two SocketPermission objects for equality.
boolean	Proxy.equals(Object obj) Compares this object against the specified object.
boolean	URL.equals(Object obj) Compares this URL for equality with another object.
boolean	NetworkInterface.equals(Object obj) Compares this object against the specified object.
boolean	HttpCookie.equals(Object obj) Test the equality of two http cookies.
boolean	Inet6Address.equals(Object obj) Compares this object against the specified object.
boolean	Inet4Address.equals(Object obj) Compares this object against the specified object.
boolean	InetSocketAddress.equals(Object obj) Compares this object against the specified object.
boolean	InetAddress.equals(Object obj) Compares this object against the specified object.
boolean	URI.equals(Object ob) Tests this URI for equality with another object.
boolean	InterfaceAddress.equals(Object obj) Compares this object against the specified object.
void	SocketOptions.setOption(int optID, Object value) Enable/disable the option specified by optID.

Uses of Object in java.nio

Subclasses of Object in java.nio

Modifier and Type	Class and Description
class	Buffer A container for data of a specific primitive type.
class	BufferOverflowException Unchecked exception thrown when a relative put operation reaches the target buffer's limit.
class	BufferUnderflowException Unchecked exception thrown when a relative get operation reaches the source buffer's limit.
class	ByteBuffer A byte buffer.
class	ByteOrder A typesafe enumeration for byte orders.
class	CharBuffer A char buffer.
class	DoubleBuffer A double buffer.
class	FloatBuffer A float buffer.
class	IntBuffer An int buffer.
class	InvalidMarkException Unchecked exception thrown when an attempt is made to reset a buffer when its mark is not defined.
class	LongBuffer A long buffer.
class	MappedByteBuffer A direct byte buffer whose content is a memory-mapped region of a file.
class	ReadOnlyBufferException Unchecked exception thrown when a content-mutation method such as put or compact is invoked upon a read-only buffer.
class	ShortBuffer A short buffer.

Methods in java.nio that return Object

Modifier and Type	Method and Description
abstract Object	Buffer.array() Returns the array that backs this buffer (optional operation).

Methods in java.nio with parameters of type Object

Modifier and Type	Method and Description
boolean	ByteBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
boolean	CharBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
boolean	DoubleBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
boolean	FloatBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
boolean	LongBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
boolean	IntBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
boolean	ShortBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.

Uses of Object in java.nio.channels

Subclasses of Object in java.nio.channels

Modifier and Type	Class and Description
class	AcceptPendingException Unchecked exception thrown when an attempt is made to initiate an accept operation on a channel and a previous accept operation has not completed.
class	AlreadyConnectedException Unchecked exception thrown when an attempt is made to connect a SocketChannel that is already connected.
class	AsynchronousChannelGroup A grouping of asynchronous channels for the purpose of resource sharing.
class	AsynchronousCloseException Checked exception received by a thread when another thread closes the channel or the part of the channel upon which it is blocked in an I/O operation.
class	AsynchronousFileChannel An asynchronous channel for reading, writing, and manipulating a file.
class	AsynchronousServerSocketChannel An asynchronous channel for stream-oriented listening sockets.
class	AsynchronousSocketChannel An asynchronous channel for stream-oriented connecting sockets.
class	CancelledKeyException Unchecked exception thrown when an attempt is made to use a selection key that is no longer valid.
class	Channels Utility methods for channels and streams.
class	ClosedByInterruptException Checked exception received by a thread when another thread interrupts it while it is blocked in an I/O operation upon a channel.
class	ClosedChannelException Checked exception thrown when an attempt is made to invoke or complete an I/O operation upon channel that is closed, or at least closed to that operation.
class	ClosedSelectorException Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a closed selector.
class	ConnectionPendingException Unchecked exception thrown when an attempt is made to connect a SocketChannel for which a non-blocking connection operation is already in progress.
class	DatagramChannel A selectable channel for datagram-oriented sockets.
class	FileChannel A channel for reading, writing, mapping, and manipulating a file.
static class	FileChannel.MapMode A typesafe enumeration for file-mapping modes.
class	FileLock A token representing a lock on a region of a file.
class	FileLockInterruptionException Checked exception received by a thread when another thread interrupts it while it is waiting to acquire a file lock.
class	IllegalBlockingModeException Unchecked exception thrown when a blocking-mode-specific operation is invoked upon a channel in the incorrect blocking mode.
class	IllegalChannelGroupException Unchecked exception thrown when an attempt is made to open a channel in a group that was not created by the same provider.
class	IllegalSelectorException Unchecked exception thrown when an attempt is made to register a channel with a selector that was not created by the provider that created the channel.
class	InterruptedByTimeoutException Checked exception received by a thread when a timeout elapses before an asynchronous operation completes.
class	MembershipKey A token representing the membership of an Internet Protocol (IP) multicast group.
class	NoConnectionPendingException Unchecked exception thrown when the finishConnect method of a SocketChannel is invoked without first successfully invoking its connect method.
class	NonReadableChannelException Unchecked exception thrown when an attempt is made to read from a channel that was not originally opened for reading.
class	NonWritableChannelException Unchecked exception thrown when an attempt is made to write to a channel that was not originally opened for writing.
class	NotYetBoundException Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a server socket channel that is not yet bound.
class	NotYetConnectedException Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a socket channel that is not yet connected.
class	OverlappingFileLockException Unchecked exception thrown when an attempt is made to acquire a lock on a region of a file that overlaps a region already locked by the same Java virtual machine, or when another thread is already waiting to lock an overlapping region of the same file.
class	Pipe A pair of channels that implements a unidirectional pipe.
static class	Pipe.SinkChannel A channel representing the writable end of a Pipe.
static class	Pipe.SourceChannel A channel representing the readable end of a Pipe.
class	ReadPendingException Unchecked exception thrown when an attempt is made to read from an asynchronous socket channel and a previous read has not completed.
class	SelectableChannel A channel that can be multiplexed via a Selector.
class	SelectionKey A token representing the registration of a SelectableChannel with a Selector.
class	Selector A multiplexor of SelectableChannel objects.
class	ServerSocketChannel A selectable channel for stream-oriented listening sockets.
class	ShutdownChannelGroupException Unchecked exception thrown when an attempt is made to construct a channel in a group that is shutdown or the completion handler for an I/O operation cannot be invoked because the channel group has terminated.
class	SocketChannel A selectable channel for stream-oriented connecting sockets.
class	UnresolvedAddressException Unchecked exception thrown when an attempt is made to invoke a network operation upon an unresolved socket address.
class	UnsupportedAddressTypeException Unchecked exception thrown when an attempt is made to bind or connect to a socket address of a type that is not supported.
class	WritePendingException Unchecked exception thrown when an attempt is made to write to an asynchronous socket channel and a previous write has not completed.

Methods in java.nio.channels that return Object

Modifier and Type	Method and Description
Object	SelectionKey.attach(Object ob) Attaches the given object to this key.
Object	SelectionKey.attachment() Retrieves the current attachment.
abstract Object	SelectableChannel.blockingLock() Retrieves the object upon which the configureBlocking and register methods synchronize.

Methods in java.nio.channels with parameters of type Object

Modifier and Type	Method and Description
Object	SelectionKey.attach(Object ob) Attaches the given object to this key.
abstract SelectionKey	SelectableChannel.register(Selector sel, int ops, Object att) Registers this channel with the given selector, returning a selection key.

Uses of Object in java.nio.channels.spi

Subclasses of Object in java.nio.channels.spi

Modifier and Type	Class and Description
class	AbstractInterruptibleChannel Base implementation class for interruptible channels.
class	AbstractSelectableChannel Base implementation class for selectable channels.
class	AbstractSelectionKey Base implementation class for selection keys.
class	AbstractSelector Base implementation class for selectors.
class	AsynchronousChannelProvider Service-provider class for asynchronous channels.
class	SelectorProvider Service-provider class for selectors and selectable channels.

Methods in java.nio.channels.spi that return Object

Modifier and Type	Method and Description
Object	AbstractSelectableChannel.blockingLock()

Methods in java.nio.channels.spi with parameters of type Object

Modifier and Type	Method and Description
protected abstract SelectionKey	AbstractSelector.register(AbstractSelectableChannel ch, int ops, Object att) Registers the given channel with this selector.
SelectionKey	AbstractSelectableChannel.register(Selector sel, int ops, Object att) Registers this channel with the given selector, returning a selection key.

Uses of Object in java.nio.charset

Subclasses of Object in java.nio.charset

Modifier and Type	Class and Description
class	CharacterCodingException Checked exception thrown when a character encoding or decoding error occurs.
class	Charset A named mapping between sequences of sixteen-bit Unicode code units and sequences of bytes.
class	CharsetDecoder An engine that can transform a sequence of bytes in a specific charset into a sequence of sixteen-bit Unicode characters.
class	CharsetEncoder An engine that can transform a sequence of sixteen-bit Unicode characters into a sequence of bytes in a specific charset.
class	CoderMalfunctionError Error thrown when the decodeLoop method of a CharsetDecoder, or the encodeLoop method of a CharsetEncoder, throws an unexpected exception.
class	CoderResult A description of the result state of a coder.
class	CodingErrorAction A typesafe enumeration for coding-error actions.
class	IllegalCharsetNameException Unchecked exception thrown when a string that is not a legal charset name is used as such.
class	MalformedInputException Checked exception thrown when an input byte sequence is not legal for given charset, or an input character sequence is not a legal sixteen-bit Unicode sequence.
class	StandardCharsets Constant definitions for the standard Charsets.
class	UnmappableCharacterException Checked exception thrown when an input character (or byte) sequence is valid but cannot be mapped to an output byte (or character) sequence.
class	UnsupportedCharsetException Unchecked exception thrown when no support is available for a requested charset.

Methods in java.nio.charset with parameters of type Object

Modifier and Type	Method and Description
boolean	Charset.equals(Object ob) Tells whether or not this object is equal to another.

Uses of Object in java.nio.charset.spi

Subclasses of Object in java.nio.charset.spi

Modifier and Type	Class and Description
class	CharsetProvider Charset service-provider class.

Uses of Object in java.nio.file

Subclasses of Object in java.nio.file

Modifier and Type	Class and Description
class	AccessDeniedException Checked exception thrown when a file system operation is denied, typically due to a file permission or other access check.
class	AtomicMoveNotSupportedException Checked exception thrown when a file cannot be moved as an atomic file system operation.
class	ClosedDirectoryStreamException Unchecked exception thrown when an attempt is made to invoke an operation on a directory stream that is closed.
class	ClosedFileSystemException Unchecked exception thrown when an attempt is made to invoke an operation on a file and the file system is closed.
class	ClosedWatchServiceException Unchecked exception thrown when an attempt is made to invoke an operation on a watch service that is closed.
class	DirectoryIteratorException Runtime exception thrown if an I/O error is encountered when iterating over the entries in a directory.
class	DirectoryNotEmptyException Checked exception thrown when a file system operation fails because a directory is not empty.
class	FileAlreadyExistsException Checked exception thrown when an attempt is made to create a file or directory and a file of that name already exists.
class	Files This class consists exclusively of static methods that operate on files, directories, or other types of files.
class	FileStore Storage for files.
class	FileSystem Provides an interface to a file system and is the factory for objects to access files and other objects in the file system.
class	FileSystemAlreadyExistsException Runtime exception thrown when an attempt is made to create a file system that already exists.
class	FileSystemException Thrown when a file system operation fails on one or two files.
class	FileSystemLoopException Checked exception thrown when a file system loop, or cycle, is encountered.
class	FileSystemNotFoundException Runtime exception thrown when a file system cannot be found.
class	FileSystems Factory methods for file systems.
class	InvalidPathException Unchecked exception thrown when path string cannot be converted into a Path because the path string contains invalid characters, or the path string is invalid for other file system specific reasons.
class	LinkPermission The Permission class for link creation operations.
class	NoSuchFileException Checked exception thrown when an attempt is made to access a file that does not exist.
class	NotDirectoryException Checked exception thrown when a file system operation, intended for a directory, fails because the file is not a directory.
class	NotLinkException Checked exception thrown when a file system operation fails because a file is not a symbolic link.
class	Paths This class consists exclusively of static methods that return a Path by converting a path string or URI.
class	ProviderMismatchException Unchecked exception thrown when an attempt is made to invoke a method on an object created by one file system provider with a parameter created by a different file system provider.
class	ProviderNotFoundException Runtime exception thrown when a provider of the required type cannot be found.
class	ReadOnlyFileSystemException Unchecked exception thrown when an attempt is made to update an object associated with a read-only FileSystem.
class	SimpleFileVisitor<T> A simple visitor of files with default behavior to visit all files and to re-throw I/O errors.
class	StandardWatchEventKinds Defines the standard event kinds.

Fields in java.nio.file with type parameters of type Object

Modifier and Type	Field and Description
static WatchEvent.Kind<Object>	StandardWatchEventKinds.OVERFLOW A special event to indicate that events may have been lost or discarded.

Methods in java.nio.file that return Object

Modifier and Type	Method and Description
static Object	Files.getAttribute(Path path, String attribute, LinkOption... options) Reads the value of a file attribute.
abstract Object	FileStore.getAttribute(String attribute) Reads the value of a file store attribute.

Methods in java.nio.file that return types with arguments of type Object

Modifier and Type	Method and Description
static Map<String,Object>	Files.readAttributes(Path path, String attributes, LinkOption... options) Reads a set of file attributes as a bulk operation.

Methods in java.nio.file with parameters of type Object

Modifier and Type	Method and Description
boolean	Path.equals(Object other) Tests this path for equality with the given object.
static Path	Files.setAttribute(Path path, String attribute, Object value, LinkOption... options) Sets the value of a file attribute.

Uses of Object in java.nio.file.attribute

Subclasses of Object in java.nio.file.attribute

Modifier and Type	Class and Description
class	AclEntry An entry in an access control list (ACL).
static class	AclEntry.Builder A builder of AclEntry objects.
class	FileTime Represents the value of a file's time stamp attribute.
class	PosixFilePermissions This class consists exclusively of static methods that operate on sets of PosixFilePermission objects.
class	UserPrincipalLookupService An object to lookup user and group principals by name.
class	UserPrincipalNotFoundException Checked exception thrown when a lookup of UserPrincipal fails because the principal does not exist.

Methods in java.nio.file.attribute that return Object

Modifier and Type	Method and Description
Object	BasicFileAttributes.fileKey() Returns an object that uniquely identifies the given file, or null if a file key is not available.

Methods in java.nio.file.attribute with parameters of type Object

Modifier and Type	Method and Description
boolean	AclEntry.equals(Object ob) Compares the specified object with this ACL entry for equality.
boolean	FileTime.equals(Object obj) Tests this FileTime for equality with the given object.

Uses of Object in java.nio.file.spi

Subclasses of Object in java.nio.file.spi

Modifier and Type	Class and Description
class	FileSystemProvider Service-provider class for file systems.
class	FileTypeDetector A file type detector for probing a file to guess its file type.

Methods in java.nio.file.spi that return types with arguments of type Object

Modifier and Type	Method and Description
abstract Map<String,Object>	FileSystemProvider.readAttributes(Path path, String attributes, LinkOption... options) Reads a set of file attributes as a bulk operation.

Methods in java.nio.file.spi with parameters of type Object

Modifier and Type	Method and Description
abstract void	FileSystemProvider.setAttribute(Path path, String attribute, Object value, LinkOption... options) Sets the value of a file attribute.

Uses of Object in java.rmi

Subclasses of Object in java.rmi

Modifier and Type	Class and Description
class	AccessException An AccessException is thrown by certain methods of the java.rmi.Naming class (specifically bind, rebind, and unbind) and methods of the java.rmi.activation.ActivationSystem interface to indicate that the caller does not have permission to perform the action requested by the method call.
class	AlreadyBoundException An AlreadyBoundException is thrown if an attempt is made to bind an object in the registry to a name that already has an associated binding.
class	ConnectException A ConnectException is thrown if a connection is refused to the remote host for a remote method call.
class	ConnectIOException A ConnectIOException is thrown if an IOException occurs while making a connection to the remote host for a remote method call.
class	MarshalledObject<T> A MarshalledObject contains a byte stream with the serialized representation of an object given to its constructor.
class	Naming The Naming class provides methods for storing and obtaining references to remote objects in a remote object registry.
class	NoSuchObjectException A NoSuchObjectException is thrown if an attempt is made to invoke a method on an object that no longer exists in the remote virtual machine.
class	NotBoundException A NotBoundException is thrown if an attempt is made to lookup or unbind in the registry a name that has no associated binding.
class	RemoteException A RemoteException is the common superclass for a number of communication-related exceptions that may occur during the execution of a remote method call.
class	RMISecurityException Deprecated. Use SecurityException instead. Application code should never directly reference this class, and RMISecurityManager no longer throws this subclass of java.lang.SecurityException.
class	RMISecurityManager A subclass of SecurityManager used by RMI applications that use downloaded code.
class	ServerError A ServerError is thrown as a result of a remote method invocation when an Error is thrown while processing the invocation on the server, either while unmarshalling the arguments, executing the remote method itself, or marshalling the return value.
class	ServerException A ServerException is thrown as a result of a remote method invocation when a RemoteException is thrown while processing the invocation on the server, either while unmarshalling the arguments or executing the remote method itself.
class	ServerRuntimeException Deprecated. no replacement
class	StubNotFoundException A StubNotFoundException is thrown if a valid stub class could not be found for a remote object when it is exported.
class	UnexpectedException An UnexpectedException is thrown if the client of a remote method call receives, as a result of the call, a checked exception that is not among the checked exception types declared in the throws clause of the method in the remote interface.
class	UnmarshalException An UnmarshalException can be thrown while unmarshalling the parameters or results of a remote method call if any of the following conditions occur: if an exception occurs while unmarshalling the call header if the protocol for the return value is invalid if a java.io.IOException occurs unmarshalling parameters (on the server side) or the return value (on the client side).

Methods in java.rmi with parameters of type Object

Modifier and Type	Method and Description
boolean	MarshalledObject.equals(Object obj) Compares this MarshalledObject to another object.

Uses of Object in java.rmi.activation

Subclasses of Object in java.rmi.activation

Modifier and Type	Class and Description
class	Activatable The Activatable class provides support for remote objects that require persistent access over time and that can be activated by the system.
class	ActivateFailedException This exception is thrown by the RMI runtime when activation fails during a remote call to an activatable object.
class	ActivationDesc An activation descriptor contains the information necessary to activate an object: the object's group identifier, the object's fully-qualified class name, the object's code location (the location of the class), a codebase URL path, the object's restart "mode", and, a "marshalled" object that can contain object specific initialization data.
class	ActivationException General exception used by the activation interfaces.
class	ActivationGroup An ActivationGroup is responsible for creating new instances of "activatable" objects in its group, informing its ActivationMonitor when either: its object's become active or inactive, or the group as a whole becomes inactive.
class	ActivationGroup_Stub ActivationGroup_Stub is a stub class for the subclasses of java.rmi.activation.ActivationGroup that are exported as a java.rmi.server.UnicastRemoteObject.
class	ActivationGroupDesc An activation group descriptor contains the information necessary to create/recreate an activation group in which to activate objects.
static class	ActivationGroupDesc.CommandEnvironment Startup options for ActivationGroup implementations.
class	ActivationGroupID The identifier for a registered activation group serves several purposes: identifies the group uniquely within the activation system, and contains a reference to the group's activation system so that the group can contact its activation system when necessary.
class	ActivationID Activation makes use of special identifiers to denote remote objects that can be activated over time.
class	UnknownGroupException An UnknownGroupException is thrown by methods of classes and interfaces in the java.rmi.activation package when the ActivationGroupID parameter to the method is determined to be invalid, i.e., not known by the ActivationSystem.
class	UnknownObjectException An UnknownObjectException is thrown by methods of classes and interfaces in the java.rmi.activation package when the ActivationID parameter to the method is determined to be invalid.

Methods in java.rmi.activation with parameters of type Object

Modifier and Type	Method and Description
boolean	ActivationGroupID.equals(Object obj) Compares two group identifiers for content equality.
boolean	ActivationGroupDesc.equals(Object obj) Compares two activation group descriptors for content equality.
boolean	ActivationGroupDesc.CommandEnvironment.equals(Object obj) Compares two command environments for content equality.
boolean	ActivationDesc.equals(Object obj) Compares two activation descriptors for content equality.
boolean	ActivationID.equals(Object obj) Compares two activation ids for content equality.

Uses of Object in java.rmi.dgc

Subclasses of Object in java.rmi.dgc

Modifier and Type	Class and Description
class	Lease A lease contains a unique VM identifier and a lease duration.
class	VMID A VMID is a identifier that is unique across all Java virtual machines.

Methods in java.rmi.dgc with parameters of type Object

Modifier and Type	Method and Description
boolean	VMID.equals(Object obj) Compare this VMID to another, and return true if they are the same identifier.

Uses of Object in java.rmi.registry

Subclasses of Object in java.rmi.registry

Modifier and Type	Class and Description
class	LocateRegistry LocateRegistry is used to obtain a reference to a bootstrap remote object registry on a particular host (including the local host), or to create a remote object registry that accepts calls on a specific port.

Uses of Object in java.rmi.server

Subclasses of Object in java.rmi.server

Modifier and Type	Class and Description
class	ExportException An ExportException is a RemoteException thrown if an attempt to export a remote object fails.
class	LogStream Deprecated. no replacement
class	ObjID An ObjID is used to identify a remote object exported to an RMI runtime.
class	Operation Deprecated. no replacement
class	RemoteObject The RemoteObject class implements the java.lang.Object behavior for remote objects.
class	RemoteObjectInvocationHandler An implementation of the InvocationHandler interface for use with Java Remote Method Invocation (Java RMI).
class	RemoteServer The RemoteServer class is the common superclass to server implementations and provides the framework to support a wide range of remote reference semantics.
class	RemoteStub The RemoteStub class is the common superclass to client stubs and provides the framework to support a wide range of remote reference semantics.
class	RMIClassLoader RMIClassLoader comprises static methods to support dynamic class loading with RMI.
class	RMIClassLoaderSpi RMIClassLoaderSpi is the service provider interface for RMIClassLoader.
class	RMISocketFactory An RMISocketFactory instance is used by the RMI runtime in order to obtain client and server sockets for RMI calls.
class	ServerCloneException A ServerCloneException is thrown if a remote exception occurs during the cloning of a UnicastRemoteObject.
class	ServerNotActiveException An ServerNotActiveException is an Exception thrown during a call to RemoteServer.getClientHost if the getClientHost method is called outside of servicing a remote method call.
class	SkeletonMismatchException Deprecated. no replacement. Skeletons are no longer required for remote method calls in the Java 2 platform v1.2 and greater.
class	SkeletonNotFoundException Deprecated. no replacement. Skeletons are no longer required for remote method calls in the Java 2 platform v1.2 and greater.
class	SocketSecurityException An obsolete subclass of ExportException.
class	UID A UID represents an identifier that is unique over time with respect to the host it is generated on, or one of 216 "well-known" identifiers.
class	UnicastRemoteObject Used for exporting a remote object with JRMP and obtaining a stub that communicates to the remote object.

Methods in java.rmi.server that return Object

Modifier and Type	Method and Description
Object	UnicastRemoteObject.clone() Returns a clone of the remote object that is distinct from the original.
static Object	RMIClassLoader.getSecurityContext(ClassLoader loader) Deprecated. no replacement. As of the Java 2 platform v1.2, RMI no longer uses this method to obtain a class loader's security context.
Object	LoaderHandler.getSecurityContext(ClassLoader loader) Deprecated. no replacement
Object	RemoteObjectInvocationHandler.invoke(Object proxy, Method method, Object[] args) Processes a method invocation made on the encapsulating proxy instance, proxy, and returns the result.
Object	RemoteRef.invoke(Remote obj, Method method, Object[] params, long opnum) Invoke a method.

Methods in java.rmi.server with parameters of type Object

Modifier and Type	Method and Description
boolean	RemoteObject.equals(Object obj) Compares two remote objects for equality.
boolean	UID.equals(Object obj) Compares the specified object with this UID for equality.
boolean	ObjID.equals(Object obj) Compares the specified object with this ObjID for equality.
RemoteStub	ServerRef.exportObject(Remote obj, Object data) Creates a client stub object for the supplied Remote object.
Object	RemoteObjectInvocationHandler.invoke(Object proxy, Method method, Object[] args) Processes a method invocation made on the encapsulating proxy instance, proxy, and returns the result.
Object	RemoteObjectInvocationHandler.invoke(Object proxy, Method method, Object[] args) Processes a method invocation made on the encapsulating proxy instance, proxy, and returns the result.
Object	RemoteRef.invoke(Remote obj, Method method, Object[] params, long opnum) Invoke a method.

Uses of Object in java.security

Subclasses of Object in java.security

Modifier and Type	Class and Description
class	AccessControlContext An AccessControlContext is used to make system resource access decisions based on the context it encapsulates.
class	AccessControlException This exception is thrown by the AccessController to indicate that a requested access (to a critical system resource such as the file system or the network) is denied.
class	AccessController The AccessController class is used for access control operations and decisions.
class	AlgorithmParameterGenerator The AlgorithmParameterGenerator class is used to generate a set of parameters to be used with a certain algorithm.
class	AlgorithmParameterGeneratorSpi This class defines the Service Provider Interface (SPI) for the AlgorithmParameterGenerator class, which is used to generate a set of parameters to be used with a certain algorithm.
class	AlgorithmParameters This class is used as an opaque representation of cryptographic parameters.
class	AlgorithmParametersSpi This class defines the Service Provider Interface (SPI) for the AlgorithmParameters class, which is used to manage algorithm parameters.
class	AllPermission The AllPermission is a permission that implies all other permissions.
class	AuthProvider This class defines login and logout methods for a provider.
class	BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
class	CodeSigner This class encapsulates information about a code signer.
class	CodeSource This class extends the concept of a codebase to encapsulate not only the location (URL) but also the certificate chains that were used to verify signed code originating from that location.
class	DigestException This is the generic Message Digest exception.
class	DigestInputStream A transparent stream that updates the associated message digest using the bits going through the stream.
class	DigestOutputStream A transparent stream that updates the associated message digest using the bits going through the stream.
class	GeneralSecurityException The GeneralSecurityException class is a generic security exception class that provides type safety for all the security-related exception classes that extend from it.
class	GuardedObject A GuardedObject is an object that is used to protect access to another object.
class	Identity Deprecated. This class is no longer used. Its functionality has been replaced by java.security.KeyStore, the java.security.cert package, and java.security.Principal.
class	IdentityScope Deprecated. This class is no longer used. Its functionality has been replaced by java.security.KeyStore, the java.security.cert package, and java.security.Principal.
class	InvalidAlgorithmParameterException This is the exception for invalid or inappropriate algorithm parameters.
class	InvalidKeyException This is the exception for invalid Keys (invalid encoding, wrong length, uninitialized, etc).
class	InvalidParameterException This exception, designed for use by the JCA/JCE engine classes, is thrown when an invalid parameter is passed to a method.
class	KeyException This is the basic key exception.
class	KeyFactory Key factories are used to convert keys (opaque cryptographic keys of type Key) into key specifications (transparent representations of the underlying key material), and vice versa.
class	KeyFactorySpi This class defines the Service Provider Interface (SPI) for the KeyFactory class.
class	KeyManagementException This is the general key management exception for all operations dealing with key management.
class	KeyPair This class is a simple holder for a key pair (a public key and a private key).
class	KeyPairGenerator The KeyPairGenerator class is used to generate pairs of public and private keys.
class	KeyPairGeneratorSpi This class defines the Service Provider Interface (SPI) for the KeyPairGenerator class, which is used to generate pairs of public and private keys.
class	KeyRep Standardized representation for serialized Key objects.
class	KeyStore This class represents a storage facility for cryptographic keys and certificates.
static class	KeyStore.Builder A description of a to-be-instantiated KeyStore object.
static class	KeyStore.CallbackHandlerProtection A ProtectionParameter encapsulating a CallbackHandler.
static class	KeyStore.PasswordProtection A password-based implementation of ProtectionParameter.
static class	KeyStore.PrivateKeyEntry A KeyStore entry that holds a PrivateKey and corresponding certificate chain.
static class	KeyStore.SecretKeyEntry A KeyStore entry that holds a SecretKey.
static class	KeyStore.TrustedCertificateEntry A KeyStore entry that holds a trusted Certificate.
class	KeyStoreException This is the generic KeyStore exception.
class	KeyStoreSpi This class defines the Service Provider Interface (SPI) for the KeyStore class.
class	MessageDigest This MessageDigest class provides applications the functionality of a message digest algorithm, such as SHA-1 or SHA-256.
class	MessageDigestSpi This class defines the Service Provider Interface (SPI) for the MessageDigest class, which provides the functionality of a message digest algorithm, such as MD5 or SHA.
class	NoSuchAlgorithmException This exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.
class	NoSuchProviderException This exception is thrown when a particular security provider is requested but is not available in the environment.
class	Permission Abstract class for representing access to a system resource.
class	PermissionCollection Abstract class representing a collection of Permission objects.
class	Permissions This class represents a heterogeneous collection of Permissions.
class	Policy A Policy object is responsible for determining whether code executing in the Java runtime environment has permission to perform a security-sensitive operation.
class	PolicySpi This class defines the Service Provider Interface (SPI) for the Policy class.
class	PrivilegedActionException This exception is thrown by doPrivileged(PrivilegedExceptionAction) and doPrivileged(PrivilegedExceptionAction, AccessControlContext context) to indicate that the action being performed threw a checked exception.
class	ProtectionDomain This ProtectionDomain class encapsulates the characteristics of a domain, which encloses a set of classes whose instances are granted a set of permissions when being executed on behalf of a given set of Principals.
static class	Provider.Service The description of a security service.
class	ProviderException A runtime exception for Provider exceptions (such as misconfiguration errors or unrecoverable internal errors), which may be subclassed by Providers to throw specialized, provider-specific runtime errors.
class	SecureClassLoader This class extends ClassLoader with additional support for defining classes with an associated code source and permissions which are retrieved by the system policy by default.
class	SecureRandom This class provides a cryptographically strong random number generator (RNG).
class	SecureRandomSpi This class defines the Service Provider Interface (SPI) for the SecureRandom class.
class	Security This class centralizes all security properties and common security methods.
class	SecurityPermission This class is for security permissions.
class	Signature The Signature class is used to provide applications the functionality of a digital signature algorithm.
class	SignatureException This is the generic Signature exception.
class	SignatureSpi This class defines the Service Provider Interface (SPI) for the Signature class, which is used to provide the functionality of a digital signature algorithm.
class	SignedObject SignedObject is a class for the purpose of creating authentic runtime objects whose integrity cannot be compromised without being detected.
class	Signer Deprecated. This class is no longer used. Its functionality has been replaced by java.security.KeyStore, the java.security.cert package, and java.security.Principal.
class	Timestamp This class encapsulates information about a signed timestamp.
class	UnrecoverableEntryException This exception is thrown if an entry in the keystore cannot be recovered.
class	UnrecoverableKeyException This exception is thrown if a key in the keystore cannot be recovered.
class	UnresolvedPermission The UnresolvedPermission class is used to hold Permissions that were "unresolved" when the Policy was initialized.
class	URIParameter A parameter that contains a URI pointing to data intended for a PolicySpi or ConfigurationSpi implementation.

Methods in java.security that return Object

Modifier and Type	Method and Description
Object	MessageDigestSpi.clone() Returns a clone if the implementation is cloneable.
Object	MessageDigest.clone() Returns a clone if the implementation is cloneable.
Object	Signature.clone() Returns a clone if the implementation is cloneable.
Object	SignatureSpi.clone() Returns a clone if the implementation is cloneable.
protected abstract Object	SignatureSpi.engineGetParameter(String param) Deprecated.
Object	Provider.get(Object key)
Object	GuardedObject.getObject() Retrieves the guarded object, or throws an exception if access to the guarded object is denied by the guard.
Object	SignedObject.getObject() Retrieves the encapsulated object.
Object	Signature.getParameter(String param) Deprecated.
Object	Provider.Service.newInstance(Object constructorParameter) Return a new instance of the implementation described by this service.
Object	Provider.put(Object key, Object value) Sets the key property to have the specified value.
protected Object	KeyRep.readResolve() Resolve the Key object.
Object	Provider.remove(Object key) Removes the key property (and its corresponding value).

Methods in java.security that return types with arguments of type Object

Modifier and Type	Method and Description
Enumeration<Object>	Provider.elements()
Set<Map.Entry<Object,Object>>	Provider.entrySet() Returns an unmodifiable Set view of the property entries contained in this Provider.
Set<Map.Entry<Object,Object>>	Provider.entrySet() Returns an unmodifiable Set view of the property entries contained in this Provider.
Enumeration<Object>	Provider.keys()
Set<Object>	Provider.keySet() Returns an unmodifiable Set view of the property keys contained in this provider.
Collection<Object>	Provider.values() Returns an unmodifiable Collection view of the property values contained in this provider.

Methods in java.security with parameters of type Object

Modifier and Type	Method and Description
void	Guard.checkGuard(Object object) Determines whether or not to allow access to the guarded object object.
void	Permission.checkGuard(Object object) Implements the guard interface for a permission.
protected abstract void	SignatureSpi.engineSetParameter(String param, Object value) Deprecated. Replaced by engineSetParameter.
boolean	Identity.equals(Object identity) Deprecated. Tests for equality between the specified object and this identity.
boolean	AccessControlContext.equals(Object obj) Checks two AccessControlContext objects for equality.
boolean	Principal.equals(Object another) Compares this principal to the specified object.
boolean	CodeSigner.equals(Object obj) Tests for equality between the specified object and this code signer.
boolean	AllPermission.equals(Object obj) Checks two AllPermission objects for equality.
abstract boolean	Permission.equals(Object obj) Checks two Permission objects for equality.
boolean	Timestamp.equals(Object obj) Tests for equality between the specified object and this timestamp.
boolean	BasicPermission.equals(Object obj) Checks two BasicPermission objects for equality.
boolean	UnresolvedPermission.equals(Object obj) Checks two UnresolvedPermission objects for equality.
boolean	CodeSource.equals(Object obj) Tests for equality between the specified object and this object.
Object	Provider.get(Object key)
Object	Provider.Service.newInstance(Object constructorParameter) Return a new instance of the implementation described by this service.
Object	Provider.put(Object key, Object value) Sets the key property to have the specified value.
Object	Provider.remove(Object key) Removes the key property (and its corresponding value).
void	Signature.setParameter(String param, Object value) Deprecated. Use setParameter.
boolean	Provider.Service.supportsParameter(Object parameter) Test whether this Service can use the specified parameter.

Constructors in java.security with parameters of type Object

Constructor and Description
GuardedObject(Object object, Guard guard) Constructs a GuardedObject using the specified object and guard.

Uses of Object in java.security.acl

Subclasses of Object in java.security.acl

Modifier and Type	Class and Description
class	AclNotFoundException This is an exception that is thrown whenever a reference is made to a non-existent ACL (Access Control List).
class	LastOwnerException This is an exception that is thrown whenever an attempt is made to delete the last owner of an Access Control List.
class	NotOwnerException This is an exception that is thrown whenever the modification of an object (such as an Access Control List) is only allowed to be done by an owner of the object, but the Principal attempting the modification is not an owner.

Methods in java.security.acl that return Object

Modifier and Type	Method and Description
Object	AclEntry.clone() Clones this ACL entry.

Methods in java.security.acl with parameters of type Object

Modifier and Type	Method and Description
boolean	Permission.equals(Object another) Returns true if the object passed matches the permission represented in this interface.

Uses of Object in java.security.cert

Subclasses of Object in java.security.cert

Modifier and Type	Class and Description
class	Certificate Abstract class for managing a variety of identity certificates.
protected static class	Certificate.CertificateRep Alternate Certificate class for serialization.
class	CertificateFactory This class defines the functionality of a certificate factory, which is used to generate certificate, certification path (CertPath) and certificate revocation list (CRL) objects from their encodings.
class	CertificateFactorySpi This class defines the Service Provider Interface (SPI) for the CertificateFactory class.
class	CertificateRevokedException An exception that indicates an X.509 certificate is revoked.
class	CertPath An immutable sequence of certificates (a certification path).
protected static class	CertPath.CertPathRep Alternate CertPath class for serialization.
class	CertPathBuilder A class for building certification paths (also known as certificate chains).
class	CertPathBuilderException An exception indicating one of a variety of problems encountered when building a certification path with a CertPathBuilder.
class	CertPathBuilderSpi The Service Provider Interface (SPI) for the CertPathBuilder class.
class	CertPathValidator A class for validating certification paths (also known as certificate chains).
class	CertPathValidatorException An exception indicating one of a variety of problems encountered when validating a certification path.
class	CertPathValidatorSpi The Service Provider Interface (SPI) for the CertPathValidator class.
class	CertStore A class for retrieving Certificates and CRLs from a repository.
class	CertStoreException An exception indicating one of a variety of problems retrieving certificates and CRLs from a CertStore.
class	CertStoreSpi The Service Provider Interface (SPI) for the CertStore class.
class	CollectionCertStoreParameters Parameters used as input for the Collection CertStore algorithm.
class	CRL This class is an abstraction of certificate revocation lists (CRLs) that have different formats but important common uses.
class	CRLException CRL (Certificate Revocation List) Exception.
class	LDAPCertStoreParameters Parameters used as input for the LDAP CertStore algorithm.
class	PKIXBuilderParameters Parameters used as input for the PKIX CertPathBuilder algorithm.
class	PKIXCertPathBuilderResult This class represents the successful result of the PKIX certification path builder algorithm.
class	PKIXCertPathChecker An abstract class that performs one or more checks on an X509Certificate.
class	PKIXCertPathValidatorResult This class represents the successful result of the PKIX certification path validation algorithm.
class	PKIXParameters Parameters used as input for the PKIX CertPathValidator algorithm.
class	PolicyQualifierInfo An immutable policy qualifier represented by the ASN.1 PolicyQualifierInfo structure.
class	TrustAnchor A trust anchor or most-trusted Certification Authority (CA).
class	X509Certificate Abstract class for X.509 certificates.
class	X509CertSelector A CertSelector that selects X509Certificates that match all specified criteria.
class	X509CRL Abstract class for an X.509 Certificate Revocation List (CRL).
class	X509CRLEntry Abstract class for a revoked certificate in a CRL (Certificate Revocation List).
class	X509CRLSelector A CRLSelector that selects X509CRLs that match all specified criteria.

Methods in java.security.cert that return Object

Modifier and Type	Method and Description
Object	LDAPCertStoreParameters.clone() Returns a copy of this object.
Object	PKIXCertPathValidatorResult.clone() Returns a copy of this object.
Object	PKIXParameters.clone() Makes a copy of this PKIXParameters object.
Object	CertStoreParameters.clone() Makes a copy of this CertStoreParameters.
Object	CertPathBuilderResult.clone() Makes a copy of this CertPathBuilderResult.
Object	CertPathValidatorResult.clone() Makes a copy of this CertPathValidatorResult.
Object	CertPathParameters.clone() Makes a copy of this CertPathParameters.
Object	CertSelector.clone() Makes a copy of this CertSelector.
Object	PKIXCertPathChecker.clone() Returns a clone of this object.
Object	CollectionCertStoreParameters.clone() Returns a copy of this object.
Object	CRLSelector.clone() Makes a copy of this CRLSelector.
Object	X509CertSelector.clone() Returns a copy of this object.
Object	X509CRLSelector.clone() Returns a copy of this object.
protected Object	CertPath.CertPathRep.readResolve() Returns a CertPath constructed from the type and data.
protected Object	Certificate.CertificateRep.readResolve() Resolve the Certificate Object.
protected Object	CertPath.writeReplace() Replaces the CertPath to be serialized with a CertPathRep object.
protected Object	Certificate.writeReplace() Replace the Certificate to be serialized.

Methods in java.security.cert that return types with arguments of type Object

Modifier and Type	Method and Description
Collection<Object>	X509CRLSelector.getIssuerNames() Returns a copy of the issuerNames criterion.

Methods in java.security.cert with parameters of type Object

Modifier and Type	Method and Description
boolean	CertPath.equals(Object other) Compares this certification path for equality with the specified object.
boolean	X509CRL.equals(Object other) Compares this CRL for equality with the given object.
boolean	X509CRLEntry.equals(Object other) Compares this CRL entry for equality with the given object.
boolean	Certificate.equals(Object other) Compares this certificate for equality with the specified object.

Uses of Object in java.security.spec

Subclasses of Object in java.security.spec

Modifier and Type	Class and Description
class	DSAParameterSpec This class specifies the set of parameters used with the DSA algorithm.
class	DSAPrivateKeySpec This class specifies a DSA private key with its associated parameters.
class	DSAPublicKeySpec This class specifies a DSA public key with its associated parameters.
class	ECFieldF2m This immutable class defines an elliptic curve (EC) characteristic 2 finite field.
class	ECFieldFp This immutable class defines an elliptic curve (EC) prime finite field.
class	ECGenParameterSpec This immutable class specifies the set of parameters used for generating elliptic curve (EC) domain parameters.
class	ECParameterSpec This immutable class specifies the set of domain parameters used with elliptic curve cryptography (ECC).
class	ECPoint This immutable class represents a point on an elliptic curve (EC) in affine coordinates.
class	ECPrivateKeySpec This immutable class specifies an elliptic curve private key with its associated parameters.
class	ECPublicKeySpec This immutable class specifies an elliptic curve public key with its associated parameters.
class	EllipticCurve This immutable class holds the necessary values needed to represent an elliptic curve.
class	EncodedKeySpec This class represents a public or private key in encoded format.
class	InvalidKeySpecException This is the exception for invalid key specifications.
class	InvalidParameterSpecException This is the exception for invalid parameter specifications.
class	MGF1ParameterSpec This class specifies the set of parameters used with mask generation function MGF1 in OAEP Padding and RSA-PSS signature scheme, as defined in the PKCS #1 v2.1 standard.
class	PKCS8EncodedKeySpec This class represents the ASN.1 encoding of a private key, encoded according to the ASN.1 type PrivateKeyInfo.
class	PSSParameterSpec This class specifies a parameter spec for RSA-PSS signature scheme, as defined in the PKCS#1 v2.1 standard.
class	RSAKeyGenParameterSpec This class specifies the set of parameters used to generate an RSA key pair.
class	RSAMultiPrimePrivateCrtKeySpec This class specifies an RSA multi-prime private key, as defined in the PKCS#1 v2.1, using the Chinese Remainder Theorem (CRT) information values for efficiency.
class	RSAOtherPrimeInfo This class represents the triplet (prime, exponent, and coefficient) inside RSA's OtherPrimeInfo structure, as defined in the PKCS#1 v2.1.
class	RSAPrivateCrtKeySpec This class specifies an RSA private key, as defined in the PKCS#1 standard, using the Chinese Remainder Theorem (CRT) information values for efficiency.
class	RSAPrivateKeySpec This class specifies an RSA private key.
class	RSAPublicKeySpec This class specifies an RSA public key.
class	X509EncodedKeySpec This class represents the ASN.1 encoding of a public key, encoded according to the ASN.1 type SubjectPublicKeyInfo.

Methods in java.security.spec with parameters of type Object

Modifier and Type	Method and Description
boolean	ECPoint.equals(Object obj) Compares this elliptic curve point for equality with the specified object.
boolean	ECFieldFp.equals(Object obj) Compares this prime finite field for equality with the specified object.
boolean	ECFieldF2m.equals(Object obj) Compares this finite field for equality with the specified object.
boolean	EllipticCurve.equals(Object obj) Compares this elliptic curve for equality with the specified object.

Uses of Object in java.sql

Subclasses of Object in java.sql

Modifier and Type	Class and Description
class	BatchUpdateException The subclass of SQLException thrown when an error occurs during a batch update operation.
class	DataTruncation An exception thrown as a DataTruncation exception (on writes) or reported as a DataTruncation warning (on reads) when a data values is unexpectedly truncated for reasons other than its having execeeded MaxFieldSize.
class	DriverManager The basic service for managing a set of JDBC drivers. NOTE: The DataSource interface, new in the JDBC 2.0 API, provides another way to connect to a data source.
class	DriverPropertyInfo Driver properties for making a connection.
class	SQLClientInfoException The subclass of SQLException is thrown when one or more client info properties could not be set on a Connection.
class	SQLDataException The subclass of SQLException thrown when the SQLState class value is '22', or under vendor-specified conditions.
class	SQLException An exception that provides information on a database access error or other errors.
class	SQLFeatureNotSupportedException The subclass of SQLException thrown when the SQLState class value is '0A' ( the value is 'zero' A).
class	SQLIntegrityConstraintViolationException The subclass of SQLException thrown when the SQLState class value is '23', or under vendor-specified conditions.
class	SQLInvalidAuthorizationSpecException The subclass of SQLException thrown when the SQLState class value is '28', or under vendor-specified conditions.
class	SQLNonTransientConnectionException The subclass of SQLException thrown for the SQLState class value '08', or under vendor-specified conditions.
class	SQLNonTransientException The subclass of SQLException thrown when an instance where a retry of the same operation would fail unless the cause of the SQLException is corrected.
class	SQLPermission The permission for which the SecurityManager will check when code that is running in an applet, or an application with a SecurityManager enabled, calls the DriverManager.setLogWriter method, DriverManager.setLogStream (deprecated) method, SyncFactory.setJNDIContext method, SyncFactory.setLogger method, Connection.setNetworktimeout method, or the Connection.abort method.
class	SQLRecoverableException The subclass of SQLException thrown in situations where a previously failed operation might be able to succeed if the application performs some recovery steps and retries the entire transaction or in the case of a distributed transaction, the transaction branch.
class	SQLSyntaxErrorException The subclass of SQLException thrown when the SQLState class value is '42', or under vendor-specified conditions.
class	SQLTimeoutException The subclass of SQLException thrown when the timeout specified by Statement has expired.
class	SQLTransactionRollbackException The subclass of SQLException thrown when the SQLState class value is '40', or under vendor-specified conditions.
class	SQLTransientConnectionException The subclass of SQLException for the SQLState class value '08', or under vendor-specified conditions.
class	SQLTransientException The subclass of SQLException is thrown in situations where a previoulsy failed operation might be able to succeed when the operation is retried without any intervention by application-level functionality.
class	SQLWarning An exception that provides information on database access warnings.
class	Time A thin wrapper around the java.util.Date class that allows the JDBC API to identify this as an SQL TIME value.
class	Types The class that defines the constants that are used to identify generic SQL types, called JDBC types.

Methods in java.sql that return Object

Modifier and Type	Method and Description
Object	Array.getArray() Retrieves the contents of the SQL ARRAY value designated by this Array object in the form of an array in the Java programming language.
Object	Array.getArray(long index, int count) Retrieves a slice of the SQL ARRAY value designated by this Array object, beginning with the specified index and containing up to count successive elements of the SQL array.
Object	Array.getArray(long index, int count, Map<String,Class<?>> map) Retreives a slice of the SQL ARRAY value designated by this Array object, beginning with the specified index and containing up to count successive elements of the SQL array.
Object	Array.getArray(Map<String,Class<?>> map) Retrieves the contents of the SQL ARRAY value designated by this Array object.
Object[]	Struct.getAttributes() Produces the ordered values of the attributes of the SQL structured type that this Struct object represents.
Object[]	Struct.getAttributes(Map<String,Class<?>> map) Produces the ordered values of the attributes of the SQL structured type that this Struct object represents.
Object	Ref.getObject() Retrieves the SQL structured type instance referenced by this Ref object.
Object	CallableStatement.getObject(int parameterIndex) Retrieves the value of the designated parameter as an Object in the Java programming language.
Object	ResultSet.getObject(int columnIndex) Gets the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.
Object	CallableStatement.getObject(int parameterIndex, Map<String,Class<?>> map) Returns an object representing the value of OUT parameter parameterIndex and uses map for the custom mapping of the parameter value.
Object	ResultSet.getObject(int columnIndex, Map<String,Class<?>> map) Retrieves the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.
Object	Ref.getObject(Map<String,Class<?>> map) Retrieves the referenced object and maps it to a Java type using the given type map.
Object	CallableStatement.getObject(String parameterName) Retrieves the value of a parameter as an Object in the Java programming language.
Object	ResultSet.getObject(String columnLabel) Gets the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.
Object	CallableStatement.getObject(String parameterName, Map<String,Class<?>> map) Returns an object representing the value of OUT parameter parameterName and uses map for the custom mapping of the parameter value.
Object	ResultSet.getObject(String columnLabel, Map<String,Class<?>> map) Retrieves the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.
Object	SQLInput.readObject() Reads the datum at the head of the stream and returns it as an Object in the Java programming language.

Methods in java.sql with parameters of type Object

Modifier and Type	Method and Description
Array	Connection.createArrayOf(String typeName, Object[] elements) Factory method for creating Array objects.
Struct	Connection.createStruct(String typeName, Object[] attributes) Factory method for creating Struct objects.
boolean	RowId.equals(Object obj) Compares this RowId to the specified object.
boolean	Timestamp.equals(Object ts) Tests to see if this Timestamp object is equal to the given object.
void	PreparedStatement.setObject(int parameterIndex, Object x) Sets the value of the designated parameter using the given object.
void	PreparedStatement.setObject(int parameterIndex, Object x, int targetSqlType) Sets the value of the designated parameter with the given object.
void	PreparedStatement.setObject(int parameterIndex, Object x, int targetSqlType, int scaleOrLength) Sets the value of the designated parameter with the given object.
void	Ref.setObject(Object value) Sets the structured type value that this Ref object references to the given instance of Object.
void	CallableStatement.setObject(String parameterName, Object x) Sets the value of the designated parameter with the given object.
void	CallableStatement.setObject(String parameterName, Object x, int targetSqlType) Sets the value of the designated parameter with the given object.
void	CallableStatement.setObject(String parameterName, Object x, int targetSqlType, int scale) Sets the value of the designated parameter with the given object.
void	ResultSet.updateObject(int columnIndex, Object x) Updates the designated column with an Object value.
void	ResultSet.updateObject(int columnIndex, Object x, int scaleOrLength) Updates the designated column with an Object value.
void	ResultSet.updateObject(String columnLabel, Object x) Updates the designated column with an Object value.
void	ResultSet.updateObject(String columnLabel, Object x, int scaleOrLength) Updates the designated column with an Object value.

Uses of Object in java.text

Subclasses of Object in java.text

Modifier and Type	Class and Description
class	Annotation An Annotation object is used as a wrapper for a text attribute value if the attribute has annotation characteristics.
static class	AttributedCharacterIterator.Attribute Defines attribute keys that are used to identify text attributes.
class	AttributedString An AttributedString holds text and related attribute information.
class	Bidi This class implements the Unicode Bidirectional Algorithm.
class	BreakIterator The BreakIterator class implements methods for finding the location of boundaries in text.
class	ChoiceFormat A ChoiceFormat allows you to attach a format to a range of numbers.
class	CollationElementIterator The CollationElementIterator class is used as an iterator to walk through each character of an international string.
class	CollationKey A CollationKey represents a String under the rules of a specific Collator object.
class	Collator The Collator class performs locale-sensitive String comparison.
class	DateFormat DateFormat is an abstract class for date/time formatting subclasses which formats and parses dates or time in a language-independent manner.
static class	DateFormat.Field Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from DateFormat.formatToCharacterIterator and as field identifiers in FieldPosition.
class	DateFormatSymbols DateFormatSymbols is a public class for encapsulating localizable date-time formatting data, such as the names of the months, the names of the days of the week, and the time zone data.
class	DecimalFormat DecimalFormat is a concrete subclass of NumberFormat that formats decimal numbers.
class	DecimalFormatSymbols This class represents the set of symbols (such as the decimal separator, the grouping separator, and so on) needed by DecimalFormat to format numbers.
class	FieldPosition FieldPosition is a simple class used by Format and its subclasses to identify fields in formatted output.
class	Format Format is an abstract base class for formatting locale-sensitive information such as dates, messages, and numbers.
static class	Format.Field Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from Format.formatToCharacterIterator and as field identifiers in FieldPosition.
class	MessageFormat MessageFormat provides a means to produce concatenated messages in a language-neutral way.
static class	MessageFormat.Field Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from MessageFormat.formatToCharacterIterator.
class	Normalizer This class provides the method normalize which transforms Unicode text into an equivalent composed or decomposed form, allowing for easier sorting and searching of text.
class	NumberFormat NumberFormat is the abstract base class for all number formats.
static class	NumberFormat.Field Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from NumberFormat.formatToCharacterIterator and as field identifiers in FieldPosition.
class	ParseException Signals that an error has been reached unexpectedly while parsing.
class	ParsePosition ParsePosition is a simple class used by Format and its subclasses to keep track of the current position during parsing.
class	RuleBasedCollator The RuleBasedCollator class is a concrete subclass of Collator that provides a simple, data-driven, table collator.
class	SimpleDateFormat SimpleDateFormat is a concrete class for formatting and parsing dates in a locale-sensitive manner.
class	StringCharacterIterator StringCharacterIterator implements the CharacterIterator protocol for a String.

Methods in java.text that return Object

Modifier and Type	Method and Description
Object	DecimalFormatSymbols.clone() Standard override.
Object	NumberFormat.clone() Overrides Cloneable
Object	RuleBasedCollator.clone() Standard override; no change in semantics.
Object	DateFormatSymbols.clone() Overrides Cloneable
Object	CharacterIterator.clone() Create a copy of this iterator
Object	Format.clone() Creates and returns a copy of this object.
Object	ChoiceFormat.clone() Overrides Cloneable
Object	DecimalFormat.clone() Standard override; no change in semantics.
Object	StringCharacterIterator.clone() Creates a copy of this iterator.
Object	MessageFormat.clone() Creates and returns a copy of this object.
Object	SimpleDateFormat.clone() Creates a copy of this SimpleDateFormat.
Object	Collator.clone() Overrides Cloneable
Object	DateFormat.clone() Overrides Cloneable
Object	BreakIterator.clone() Create a copy of this iterator
Object	AttributedCharacterIterator.getAttribute(AttributedCharacterIterator.Attribute attribute) Returns the value of the named attribute for the current character.
Object[]	ChoiceFormat.getFormats() Get the formats passed in the constructor.
Object	Annotation.getValue() Returns the value of the attribute, which may be null.
Object[]	MessageFormat.parse(String source) Parses text from the beginning of the given string to produce an object array.
Object[]	MessageFormat.parse(String source, ParsePosition pos) Parses the string.
Object	Format.parseObject(String source) Parses text from the beginning of the given string to produce an object.
Object	NumberFormat.parseObject(String source, ParsePosition pos) Parses text from a string to produce a Number.
abstract Object	Format.parseObject(String source, ParsePosition pos) Parses text from a string to produce an object.
Object	MessageFormat.parseObject(String source, ParsePosition pos) Parses text from a string to produce an object array.
Object	DateFormat.parseObject(String source, ParsePosition pos) Parses text from a string to produce a Date.
protected Object	NumberFormat.Field.readResolve() Resolves instances being deserialized to the predefined constants.
protected Object	AttributedCharacterIterator.Attribute.readResolve() Resolves instances being deserialized to the predefined constants.
protected Object	MessageFormat.Field.readResolve() Resolves instances being deserialized to the predefined constants.
protected Object	DateFormat.Field.readResolve() Resolves instances being deserialized to the predefined constants.

Methods in java.text that return types with arguments of type Object

Modifier and Type	Method and Description
Map<AttributedCharacterIterator.Attribute,Object>	AttributedCharacterIterator.getAttributes() Returns a map with the attributes defined on the current character.

Methods in java.text with parameters of type Object

Modifier and Type	Method and Description
void	AttributedString.addAttribute(AttributedCharacterIterator.Attribute attribute, Object value) Adds an attribute to the entire string.
void	AttributedString.addAttribute(AttributedCharacterIterator.Attribute attribute, Object value, int beginIndex, int endIndex) Adds an attribute to a subrange of the string.
int	Collator.compare(Object o1, Object o2) Compares its two arguments for order.
boolean	DecimalFormatSymbols.equals(Object obj) Override equals.
boolean	NumberFormat.equals(Object obj) Overrides equals
boolean	RuleBasedCollator.equals(Object obj) Compares the equality of two collation objects.
boolean	DateFormatSymbols.equals(Object obj) Override equals
boolean	ChoiceFormat.equals(Object obj) Equality comparision between two
boolean	DecimalFormat.equals(Object obj) Overrides equals
boolean	StringCharacterIterator.equals(Object obj) Compares the equality of two StringCharacterIterator objects.
boolean	AttributedCharacterIterator.Attribute.equals(Object obj) Compares two objects for equality.
boolean	ParsePosition.equals(Object obj) Overrides equals
boolean	FieldPosition.equals(Object obj) Overrides equals
boolean	MessageFormat.equals(Object obj) Equality comparison between two message format objects
boolean	SimpleDateFormat.equals(Object obj) Compares the given object with this SimpleDateFormat for equality.
boolean	Collator.equals(Object that) Compares the equality of two Collators.
boolean	DateFormat.equals(Object obj) Overrides equals
String	Format.format(Object obj) Formats an object to produce a string.
StringBuffer	MessageFormat.format(Object[] arguments, StringBuffer result, FieldPosition pos) Formats an array of objects and appends the MessageFormat's pattern, with format elements replaced by the formatted objects, to the provided StringBuffer.
StringBuffer	NumberFormat.format(Object number, StringBuffer toAppendTo, FieldPosition pos) Formats a number and appends the resulting text to the given string buffer.
abstract StringBuffer	Format.format(Object obj, StringBuffer toAppendTo, FieldPosition pos) Formats an object and appends the resulting text to a given string buffer.
StringBuffer	DecimalFormat.format(Object number, StringBuffer toAppendTo, FieldPosition pos) Formats a number and appends the resulting text to the given string buffer.
StringBuffer	MessageFormat.format(Object arguments, StringBuffer result, FieldPosition pos) Formats an array of objects and appends the MessageFormat's pattern, with format elements replaced by the formatted objects, to the provided StringBuffer.
StringBuffer	DateFormat.format(Object obj, StringBuffer toAppendTo, FieldPosition fieldPosition) Overrides Format.
static String	MessageFormat.format(String pattern, Object... arguments) Creates a MessageFormat with the given pattern and uses it to format the given arguments.
AttributedCharacterIterator	Format.formatToCharacterIterator(Object obj) Formats an Object producing an AttributedCharacterIterator.
AttributedCharacterIterator	DecimalFormat.formatToCharacterIterator(Object obj) Formats an Object producing an AttributedCharacterIterator.
AttributedCharacterIterator	MessageFormat.formatToCharacterIterator(Object arguments) Formats an array of objects and inserts them into the MessageFormat's pattern, producing an AttributedCharacterIterator.
AttributedCharacterIterator	SimpleDateFormat.formatToCharacterIterator(Object obj) Formats an Object producing an AttributedCharacterIterator.
static void	Bidi.reorderVisually(byte[] levels, int levelStart, Object[] objects, int objectStart, int count) Reorder the objects in the array into visual order based on their levels.

Constructors in java.text with parameters of type Object

Constructor and Description
Annotation(Object value) Constructs an annotation record with the given value, which may be null.

Uses of Object in java.text.spi

Subclasses of Object in java.text.spi

Modifier and Type	Class and Description
class	BreakIteratorProvider An abstract class for service providers that provide concrete implementations of the BreakIterator class.
class	CollatorProvider An abstract class for service providers that provide concrete implementations of the Collator class.
class	DateFormatProvider An abstract class for service providers that provide concrete implementations of the DateFormat class.
class	DateFormatSymbolsProvider An abstract class for service providers that provide instances of the DateFormatSymbols class.
class	DecimalFormatSymbolsProvider An abstract class for service providers that provide instances of the DecimalFormatSymbols class.
class	NumberFormatProvider An abstract class for service providers that provide concrete implementations of the NumberFormat class.

Uses of Object in java.util

Subclasses of Object in java.util

Modifier and Type	Class and Description
class	AbstractCollection<E> This class provides a skeletal implementation of the Collection interface, to minimize the effort required to implement this interface.
class	AbstractList<E> This class provides a skeletal implementation of the List interface to minimize the effort required to implement this interface backed by a "random access" data store (such as an array).
class	AbstractMap<K,V> This class provides a skeletal implementation of the Map interface, to minimize the effort required to implement this interface.
static class	AbstractMap.SimpleEntry<K,V> An Entry maintaining a key and a value.
static class	AbstractMap.SimpleImmutableEntry<K,V> An Entry maintaining an immutable key and value.
class	AbstractQueue<E> This class provides skeletal implementations of some Queue operations.
class	AbstractSequentialList<E> This class provides a skeletal implementation of the List interface to minimize the effort required to implement this interface backed by a "sequential access" data store (such as a linked list).
class	AbstractSet<E> This class provides a skeletal implementation of the Set interface to minimize the effort required to implement this interface.
class	ArrayDeque<E> Resizable-array implementation of the Deque interface.
class	ArrayList<E> Resizable-array implementation of the List interface.
class	Arrays This class contains various methods for manipulating arrays (such as sorting and searching).
class	BitSet This class implements a vector of bits that grows as needed.
class	Calendar The Calendar class is an abstract class that provides methods for converting between a specific instant in time and a set of calendar fields such as YEAR, MONTH, DAY_OF_MONTH, HOUR, and so on, and for manipulating the calendar fields, such as getting the date of the next week.
class	Collections This class consists exclusively of static methods that operate on or return collections.
class	ConcurrentModificationException This exception may be thrown by methods that have detected concurrent modification of an object when such modification is not permissible.
class	Currency Represents a currency.
class	Date The class Date represents a specific instant in time, with millisecond precision.
class	Dictionary<K,V> The Dictionary class is the abstract parent of any class, such as Hashtable, which maps keys to values.
class	DuplicateFormatFlagsException Unchecked exception thrown when duplicate flags are provided in the format specifier.
class	EmptyStackException Thrown by methods in the Stack class to indicate that the stack is empty.
class	EnumMap<K extends Enum<K>,V> A specialized Map implementation for use with enum type keys.
class	EnumSet<E extends Enum<E>> A specialized Set implementation for use with enum types.
class	EventListenerProxy<T extends EventListener> An abstract wrapper class for an EventListener class which associates a set of additional parameters with the listener.
class	EventObject The root class from which all event state objects shall be derived.
class	FormatFlagsConversionMismatchException Unchecked exception thrown when a conversion and flag are incompatible.
class	FormattableFlags FomattableFlags are passed to the Formattable.formatTo() method and modify the output format for Formattables.
class	Formatter An interpreter for printf-style format strings.
class	FormatterClosedException Unchecked exception thrown when the formatter has been closed.
class	GregorianCalendar GregorianCalendar is a concrete subclass of Calendar and provides the standard calendar system used by most of the world.
class	HashMap<K,V> Hash table based implementation of the Map interface.
class	HashSet<E> This class implements the Set interface, backed by a hash table (actually a HashMap instance).
class	Hashtable<K,V> This class implements a hash table, which maps keys to values.
class	IdentityHashMap<K,V> This class implements the Map interface with a hash table, using reference-equality in place of object-equality when comparing keys (and values).
class	IllegalFormatCodePointException Unchecked exception thrown when a character with an invalid Unicode code point as defined by Character.isValidCodePoint(int) is passed to the Formatter.
class	IllegalFormatConversionException Unchecked exception thrown when the argument corresponding to the format specifier is of an incompatible type.
class	IllegalFormatException Unchecked exception thrown when a format string contains an illegal syntax or a format specifier that is incompatible with the given arguments.
class	IllegalFormatFlagsException Unchecked exception thrown when an illegal combination flags is given.
class	IllegalFormatPrecisionException Unchecked exception thrown when the precision is a negative value other than -1, the conversion does not support a precision, or the value is otherwise unsupported.
class	IllegalFormatWidthException Unchecked exception thrown when the format width is a negative value other than -1 or is otherwise unsupported.
class	IllformedLocaleException Thrown by methods in Locale and Locale.Builder to indicate that an argument is not a well-formed BCP 47 tag.
class	InputMismatchException Thrown by a Scanner to indicate that the token retrieved does not match the pattern for the expected type, or that the token is out of range for the expected type.
class	InvalidPropertiesFormatException Thrown to indicate that an operation could not complete because the input did not conform to the appropriate XML document type for a collection of properties, as per the Properties specification.
class	LinkedHashMap<K,V> Hash table and linked list implementation of the Map interface, with predictable iteration order.
class	LinkedHashSet<E> Hash table and linked list implementation of the Set interface, with predictable iteration order.
class	LinkedList<E> Doubly-linked list implementation of the List and Deque interfaces.
class	ListResourceBundle ListResourceBundle is an abstract subclass of ResourceBundle that manages resources for a locale in a convenient and easy to use list.
class	Locale A Locale object represents a specific geographical, political, or cultural region.
static class	Locale.Builder Builder is used to build instances of Locale from values configured by the setters.
class	MissingFormatArgumentException Unchecked exception thrown when there is a format specifier which does not have a corresponding argument or if an argument index refers to an argument that does not exist.
class	MissingFormatWidthException Unchecked exception thrown when the format width is required.
class	MissingResourceException Signals that a resource is missing.
class	NoSuchElementException Thrown by the nextElement method of an Enumeration to indicate that there are no more elements in the enumeration.
class	Objects This class consists of static utility methods for operating on objects.
class	Observable This class represents an observable object, or "data" in the model-view paradigm.
class	PriorityQueue<E> An unbounded priority queue based on a priority heap.
class	Properties The Properties class represents a persistent set of properties.
class	PropertyPermission This class is for property permissions.
class	PropertyResourceBundle PropertyResourceBundle is a concrete subclass of ResourceBundle that manages resources for a locale using a set of static strings from a property file.
class	Random An instance of this class is used to generate a stream of pseudorandom numbers.
class	ResourceBundle Resource bundles contain locale-specific objects.
static class	ResourceBundle.Control ResourceBundle.Control defines a set of callback methods that are invoked by the ResourceBundle.getBundle factory methods during the bundle loading process.
class	Scanner A simple text scanner which can parse primitive types and strings using regular expressions.
class	ServiceConfigurationError Error thrown when something goes wrong while loading a service provider.
class	ServiceLoader<S> A simple service-provider loading facility.
class	SimpleTimeZone SimpleTimeZone is a concrete subclass of TimeZone that represents a time zone for use with a Gregorian calendar.
class	Stack<E> The Stack class represents a last-in-first-out (LIFO) stack of objects.
class	StringTokenizer The string tokenizer class allows an application to break a string into tokens.
class	Timer A facility for threads to schedule tasks for future execution in a background thread.
class	TimerTask A task that can be scheduled for one-time or repeated execution by a Timer.
class	TimeZone TimeZone represents a time zone offset, and also figures out daylight savings.
class	TooManyListenersException The TooManyListenersException Exception is used as part of the Java Event model to annotate and implement a unicast special case of a multicast Event Source.
class	TreeMap<K,V> A Red-Black tree based NavigableMap implementation.
class	TreeSet<E> A NavigableSet implementation based on a TreeMap.
class	UnknownFormatConversionException Unchecked exception thrown when an unknown conversion is given.
class	UnknownFormatFlagsException Unchecked exception thrown when an unknown flag is given.
class	UUID A class that represents an immutable universally unique identifier (UUID).
class	Vector<E> The Vector class implements a growable array of objects.
class	WeakHashMap<K,V> Hash table based implementation of the Map interface, with weak keys.

Fields in java.util declared as Object

Modifier and Type	Field and Description
protected Object[]	Vector.elementData The array buffer into which the components of the vector are stored.
protected Object	EventObject.source The object on which the Event initially occurred.

Methods in java.util with type parameters of type Object

Modifier and Type	Method and Description
static <T extends Object & Comparable<? super T>> T	Collections.max(Collection<? extends T> coll) Returns the maximum element of the given collection, according to the natural ordering of its elements.
static <T extends Object & Comparable<? super T>> T	Collections.min(Collection<? extends T> coll) Returns the minimum element of the given collection, according to the natural ordering of its elements.

Methods in java.util that return Object

Modifier and Type	Method and Description
Object	Locale.clone() Overrides Cloneable.
Object	BitSet.clone() Cloning this BitSet produces a new BitSet that is equal to it.
Object	Calendar.clone() Creates and returns a copy of this object.
Object	LinkedList.clone() Returns a shallow copy of this LinkedList.
Object	IdentityHashMap.clone() Returns a shallow copy of this identity hash map: the keys and values themselves are not cloned.
Object	SimpleTimeZone.clone() Returns a clone of this SimpleTimeZone instance.
Object	TimeZone.clone() Creates a copy of this TimeZone.
protected Object	AbstractMap.clone() Returns a shallow copy of this AbstractMap instance: the keys and values themselves are not cloned.
Object	TreeMap.clone() Returns a shallow copy of this TreeMap instance.
Object	TreeSet.clone() Returns a shallow copy of this TreeSet instance.
Object	ArrayList.clone() Returns a shallow copy of this ArrayList instance.
Object	Vector.clone() Returns a clone of this vector.
Object	Hashtable.clone() Creates a shallow copy of this hashtable.
Object	Date.clone() Return a copy of this object.
Object	GregorianCalendar.clone()
Object	HashSet.clone() Returns a shallow copy of this HashSet instance: the elements themselves are not cloned.
Object	HashMap.clone() Returns a shallow copy of this HashMap instance: the keys and values themselves are not cloned.
static <T> T[]	Arrays.copyOf(T[] original, int newLength) Copies the specified array, truncating or padding with nulls (if necessary) so the copy has the specified length.
static <T,U> T[]	Arrays.copyOf(U[] original, int newLength, Class<? extends T[]> newType) Copies the specified array, truncating or padding with nulls (if necessary) so the copy has the specified length.
static <T> T[]	Arrays.copyOfRange(T[] original, int from, int to) Copies the specified range of the specified array into a new array.
static <T,U> T[]	Arrays.copyOfRange(U[] original, int from, int to, Class<? extends T[]> newType) Copies the specified range of the specified array into a new array.
protected abstract Object[][]	ListResourceBundle.getContents() Returns an array in which each item is a pair of objects in an Object array.
Object	ResourceBundle.getObject(String key) Gets an object for the given key from this resource bundle or one of its parents.
Object	EventObject.getSource() The object on which the Event initially occurred.
protected abstract Object	ResourceBundle.handleGetObject(String key) Gets an object for the given key from this resource bundle.
Object	ListResourceBundle.handleGetObject(String key)
Object	PropertyResourceBundle.handleGetObject(String key)
Object	StringTokenizer.nextElement() Returns the same value as the nextToken method, except that its declared return value is Object rather than String.
Object	Properties.setProperty(String key, String value) Calls the Hashtable method put.
Object[]	AbstractCollection.toArray() Returns an array containing all of the elements in this collection.
Object[]	Collection.toArray() Returns an array containing all of the elements in this collection.
Object[]	LinkedList.toArray() Returns an array containing all of the elements in this list in proper sequence (from first to last element).
Object[]	Set.toArray() Returns an array containing all of the elements in this set.
Object[]	ArrayList.toArray() Returns an array containing all of the elements in this list in proper sequence (from first to last element).
Object[]	Vector.toArray() Returns an array containing all of the elements in this Vector in the correct order.
Object[]	ArrayDeque.toArray() Returns an array containing all of the elements in this deque in proper sequence (from first to last element).
Object[]	PriorityQueue.toArray() Returns an array containing all of the elements in this queue.
Object[]	List.toArray() Returns an array containing all of the elements in this list in proper sequence (from first to last element).
<T> T[]	AbstractCollection.toArray(T[] a) Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.
<T> T[]	Collection.toArray(T[] a) Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.
<T> T[]	LinkedList.toArray(T[] a) Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.
<T> T[]	Set.toArray(T[] a) Returns an array containing all of the elements in this set; the runtime type of the returned array is that of the specified array.
<T> T[]	ArrayList.toArray(T[] a) Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.
<T> T[]	Vector.toArray(T[] a) Returns an array containing all of the elements in this Vector in the correct order; the runtime type of the returned array is that of the specified array.
<T> T[]	ArrayDeque.toArray(T[] a) Returns an array containing all of the elements in this deque in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.
<T> T[]	PriorityQueue.toArray(T[] a) Returns an array containing all of the elements in this queue; the runtime type of the returned array is that of the specified array.
<T> T[]	List.toArray(T[] a) Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.

Methods in java.util with parameters of type Object

Modifier and Type	Method and Description
static <T> boolean	Collections.addAll(Collection<? super T> c, T... elements) Adds all of the specified elements to the specified collection.
boolean	Calendar.after(Object when) Returns whether this Calendar represents a time after the time represented by the specified Object.
static <T> List<T>	Arrays.asList(T... a) Returns a fixed-size list backed by the specified array.
boolean	Calendar.before(Object when) Returns whether this Calendar represents a time before the time represented by the specified Object.
static int	Arrays.binarySearch(Object[] a, int fromIndex, int toIndex, Object key) Searches a range of the specified array for the specified object using the binary search algorithm.
static int	Arrays.binarySearch(Object[] a, int fromIndex, int toIndex, Object key) Searches a range of the specified array for the specified object using the binary search algorithm.
static int	Arrays.binarySearch(Object[] a, Object key) Searches the specified array for the specified object using the binary search algorithm.
static int	Arrays.binarySearch(Object[] a, Object key) Searches the specified array for the specified object using the binary search algorithm.
static <T> int	Arrays.binarySearch(T[] a, int fromIndex, int toIndex, T key, Comparator<? super T> c) Searches a range of the specified array for the specified object using the binary search algorithm.
static <T> int	Arrays.binarySearch(T[] a, T key, Comparator<? super T> c) Searches the specified array for the specified object using the binary search algorithm.
boolean	AbstractCollection.contains(Object o) Returns true if this collection contains the specified element.
boolean	Collection.contains(Object o) Returns true if this collection contains the specified element.
boolean	LinkedList.contains(Object o) Returns true if this list contains the specified element.
boolean	TreeSet.contains(Object o) Returns true if this set contains the specified element.
boolean	Set.contains(Object o) Returns true if this set contains the specified element.
boolean	ArrayList.contains(Object o) Returns true if this list contains the specified element.
boolean	Vector.contains(Object o) Returns true if this vector contains the specified element.
boolean	ArrayDeque.contains(Object o) Returns true if this deque contains the specified element.
boolean	Deque.contains(Object o) Returns true if this deque contains the specified element.
boolean	Hashtable.contains(Object value) Tests if some key maps into the specified value in this hashtable.
boolean	PriorityQueue.contains(Object o) Returns true if this queue contains the specified element.
boolean	HashSet.contains(Object o) Returns true if this set contains the specified element.
boolean	List.contains(Object o) Returns true if this list contains the specified element.
boolean	WeakHashMap.containsKey(Object key) Returns true if this map contains a mapping for the specified key.
boolean	IdentityHashMap.containsKey(Object key) Tests whether the specified object reference is a key in this identity hash map.
boolean	AbstractMap.containsKey(Object key) Returns true if this map contains a mapping for the specified key.
boolean	TreeMap.containsKey(Object key) Returns true if this map contains a mapping for the specified key.
boolean	Map.containsKey(Object key) Returns true if this map contains a mapping for the specified key.
boolean	Hashtable.containsKey(Object key) Tests if the specified object is a key in this hashtable.
boolean	EnumMap.containsKey(Object key) Returns true if this map contains a mapping for the specified key.
boolean	HashMap.containsKey(Object key) Returns true if this map contains a mapping for the specified key.
boolean	WeakHashMap.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
boolean	IdentityHashMap.containsValue(Object value) Tests whether the specified object reference is a value in this identity hash map.
boolean	AbstractMap.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
boolean	TreeMap.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
boolean	Map.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
boolean	Hashtable.containsValue(Object value) Returns true if this hashtable maps one or more keys to this value.
boolean	LinkedHashMap.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
boolean	EnumMap.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
boolean	HashMap.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
void	Vector.copyInto(Object[] anArray) Copies the components of this vector into the specified array.
static <T> T[]	Arrays.copyOf(T[] original, int newLength) Copies the specified array, truncating or padding with nulls (if necessary) so the copy has the specified length.
static <T,U> T[]	Arrays.copyOf(U[] original, int newLength, Class<? extends T[]> newType) Copies the specified array, truncating or padding with nulls (if necessary) so the copy has the specified length.
static <T> T[]	Arrays.copyOfRange(T[] original, int from, int to) Copies the specified range of the specified array into a new array.
static <T,U> T[]	Arrays.copyOfRange(U[] original, int from, int to, Class<? extends T[]> newType) Copies the specified range of the specified array into a new array.
static boolean	Arrays.deepEquals(Object[] a1, Object[] a2) Returns true if the two specified arrays are deeply equal to one another.
static boolean	Arrays.deepEquals(Object[] a1, Object[] a2) Returns true if the two specified arrays are deeply equal to one another.
static boolean	Objects.deepEquals(Object a, Object b) Returns true if the arguments are deeply equal to each other and false otherwise.
static int	Arrays.deepHashCode(Object[] a) Returns a hash code based on the "deep contents" of the specified array.
static String	Arrays.deepToString(Object[] a) Returns a string representation of the "deep contents" of the specified array.
boolean	Locale.equals(Object obj) Returns true if this Locale is equal to another object.
boolean	BitSet.equals(Object obj) Compares this object against the specified object.
boolean	Comparator.equals(Object obj) Indicates whether some other object is "equal to" this comparator.
boolean	Collection.equals(Object o) Compares the specified object with this collection for equality.
boolean	Calendar.equals(Object obj) Compares this Calendar to the specified Object.
boolean	AbstractList.equals(Object o) Compares the specified object with this list for equality.
boolean	UUID.equals(Object obj) Compares this object to the specified object.
boolean	IdentityHashMap.equals(Object o) Compares the specified object with this map for equality.
boolean	SimpleTimeZone.equals(Object obj) Compares the equality of two SimpleTimeZone objects.
boolean	AbstractSet.equals(Object o) Compares the specified object with this set for equality.
boolean	AbstractMap.equals(Object o) Compares the specified object with this map for equality.
boolean	AbstractMap.SimpleEntry.equals(Object o) Compares the specified object with this entry for equality.
boolean	AbstractMap.SimpleImmutableEntry.equals(Object o) Compares the specified object with this entry for equality.
boolean	Set.equals(Object o) Compares the specified object with this set for equality.
boolean	Map.equals(Object o) Compares the specified object with this map for equality.
boolean	Map.Entry.equals(Object o) Compares the specified object with this entry for equality.
boolean	Vector.equals(Object o) Compares the specified Object with this Vector for equality.
boolean	Hashtable.equals(Object o) Compares the specified Object with this Map for equality, as per the definition in the Map interface.
boolean	Date.equals(Object obj) Compares two dates for equality.
boolean	GregorianCalendar.equals(Object obj) Compares this GregorianCalendar to the specified Object.
boolean	PropertyPermission.equals(Object obj) Checks two PropertyPermission objects for equality.
boolean	EnumMap.equals(Object o) Compares the specified object with this map for equality.
boolean	List.equals(Object o) Compares the specified object with this list for equality.
static boolean	Arrays.equals(Object[] a, Object[] a2) Returns true if the two specified arrays of Objects are equal to one another.
static boolean	Arrays.equals(Object[] a, Object[] a2) Returns true if the two specified arrays of Objects are equal to one another.
static boolean	Objects.equals(Object a, Object b) Returns true if the arguments are equal to each other and false otherwise.
static void	Arrays.fill(Object[] a, int fromIndex, int toIndex, Object val) Assigns the specified Object reference to each element of the specified range of the specified array of Objects.
static void	Arrays.fill(Object[] a, int fromIndex, int toIndex, Object val) Assigns the specified Object reference to each element of the specified range of the specified array of Objects.
static void	Arrays.fill(Object[] a, Object val) Assigns the specified Object reference to each element of the specified array of Objects.
static void	Arrays.fill(Object[] a, Object val) Assigns the specified Object reference to each element of the specified array of Objects.
Formatter	Formatter.format(Locale l, String format, Object... args) Writes a formatted string to this object's destination using the specified locale, format string, and arguments.
Formatter	Formatter.format(String format, Object... args) Writes a formatted string to this object's destination using the specified format string and arguments.
static int	Collections.frequency(Collection<?> c, Object o) Returns the number of elements in the specified collection equal to the specified object.
V	WeakHashMap.get(Object key) Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
V	IdentityHashMap.get(Object key) Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
V	AbstractMap.get(Object key) Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
V	TreeMap.get(Object key) Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
V	Map.get(Object key) Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
V	Hashtable.get(Object key) Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
V	LinkedHashMap.get(Object key) Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
V	EnumMap.get(Object key) Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
V	HashMap.get(Object key) Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
abstract V	Dictionary.get(Object key) Returns the value to which the key is mapped in this dictionary.
static int	Objects.hash(Object... values) Generates a hash code for a sequence of input values.
static int	Objects.hashCode(Object o) Returns the hash code of a non-null argument and 0 for a null argument.
static int	Arrays.hashCode(Object[] a) Returns a hash code based on the contents of the specified array.
int	AbstractList.indexOf(Object o) Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
int	LinkedList.indexOf(Object o) Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
int	ArrayList.indexOf(Object o) Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
int	Vector.indexOf(Object o) Returns the index of the first occurrence of the specified element in this vector, or -1 if this vector does not contain the element.
int	List.indexOf(Object o) Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
int	Vector.indexOf(Object o, int index) Returns the index of the first occurrence of the specified element in this vector, searching forwards from index, or returns -1 if the element is not found.
int	AbstractList.lastIndexOf(Object o) Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
int	LinkedList.lastIndexOf(Object o) Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
int	ArrayList.lastIndexOf(Object o) Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
int	Vector.lastIndexOf(Object o) Returns the index of the last occurrence of the specified element in this vector, or -1 if this vector does not contain the element.
int	List.lastIndexOf(Object o) Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
int	Vector.lastIndexOf(Object o, int index) Returns the index of the last occurrence of the specified element in this vector, searching backwards from index, or returns -1 if the element is not found.
void	Observable.notifyObservers(Object arg) If this object has changed, as indicated by the hasChanged method, then notify all of its observers and then call the clearChanged method to indicate that this object has no longer changed.
boolean	AbstractCollection.remove(Object o) Removes a single instance of the specified element from this collection, if it is present (optional operation).
V	WeakHashMap.remove(Object key) Removes the mapping for a key from this weak hash map if it is present.
boolean	Collection.remove(Object o) Removes a single instance of the specified element from this collection, if it is present (optional operation).
boolean	LinkedList.remove(Object o) Removes the first occurrence of the specified element from this list, if it is present.
V	IdentityHashMap.remove(Object key) Removes the mapping for this key from this map if present.
V	AbstractMap.remove(Object key) Removes the mapping for a key from this map if it is present (optional operation).
V	TreeMap.remove(Object key) Removes the mapping for this key from this TreeMap if present.
boolean	TreeSet.remove(Object o) Removes the specified element from this set if it is present.
boolean	Set.remove(Object o) Removes the specified element from this set if it is present (optional operation).
V	Map.remove(Object key) Removes the mapping for a key from this map if it is present (optional operation).
boolean	ArrayList.remove(Object o) Removes the first occurrence of the specified element from this list, if it is present.
boolean	Vector.remove(Object o) Removes the first occurrence of the specified element in this Vector If the Vector does not contain the element, it is unchanged.
boolean	ArrayDeque.remove(Object o) Removes a single instance of the specified element from this deque.
boolean	Deque.remove(Object o) Removes the first occurrence of the specified element from this deque.
V	Hashtable.remove(Object key) Removes the key (and its corresponding value) from this hashtable.
boolean	PriorityQueue.remove(Object o) Removes a single instance of the specified element from this queue, if it is present.
V	EnumMap.remove(Object key) Removes the mapping for this key from this map if present.
boolean	HashSet.remove(Object o) Removes the specified element from this set if it is present.
boolean	List.remove(Object o) Removes the first occurrence of the specified element from this list, if it is present (optional operation).
V	HashMap.remove(Object key) Removes the mapping for the specified key from this map if present.
abstract V	Dictionary.remove(Object key) Removes the key (and its corresponding value) from this dictionary.
boolean	Vector.removeElement(Object obj) Removes the first (lowest-indexed) occurrence of the argument from this vector.
boolean	LinkedList.removeFirstOccurrence(Object o) Removes the first occurrence of the specified element in this list (when traversing the list from head to tail).
boolean	ArrayDeque.removeFirstOccurrence(Object o) Removes the first occurrence of the specified element in this deque (when traversing the deque from head to tail).
boolean	Deque.removeFirstOccurrence(Object o) Removes the first occurrence of the specified element from this deque.
boolean	LinkedList.removeLastOccurrence(Object o) Removes the last occurrence of the specified element in this list (when traversing the list from head to tail).
boolean	ArrayDeque.removeLastOccurrence(Object o) Removes the last occurrence of the specified element in this deque (when traversing the deque from head to tail).
boolean	Deque.removeLastOccurrence(Object o) Removes the last occurrence of the specified element from this deque.
int	Stack.search(Object o) Returns the 1-based position where an object is on this stack.
static void	Arrays.sort(Object[] a) Sorts the specified array of objects into ascending order, according to the natural ordering of its elements.
static void	Arrays.sort(Object[] a, int fromIndex, int toIndex) Sorts the specified range of the specified array of objects into ascending order, according to the natural ordering of its elements.
static <T> void	Arrays.sort(T[] a, Comparator<? super T> c) Sorts the specified array of objects according to the order induced by the specified comparator.
static <T> void	Arrays.sort(T[] a, int fromIndex, int toIndex, Comparator<? super T> c) Sorts the specified range of the specified array of objects according to the order induced by the specified comparator.
<T> T[]	AbstractCollection.toArray(T[] a) Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.
<T> T[]	Collection.toArray(T[] a) Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.
<T> T[]	LinkedList.toArray(T[] a) Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.
<T> T[]	Set.toArray(T[] a) Returns an array containing all of the elements in this set; the runtime type of the returned array is that of the specified array.
<T> T[]	ArrayList.toArray(T[] a) Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.
<T> T[]	Vector.toArray(T[] a) Returns an array containing all of the elements in this Vector in the correct order; the runtime type of the returned array is that of the specified array.
<T> T[]	ArrayDeque.toArray(T[] a) Returns an array containing all of the elements in this deque in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.
<T> T[]	PriorityQueue.toArray(T[] a) Returns an array containing all of the elements in this queue; the runtime type of the returned array is that of the specified array.
<T> T[]	List.toArray(T[] a) Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.
static String	Objects.toString(Object o) Returns the result of calling toString for a non-null argument and "null" for a null argument.
static String	Arrays.toString(Object[] a) Returns a string representation of the contents of the specified array.
static String	Objects.toString(Object o, String nullDefault) Returns the result of calling toString on the first argument if the first argument is not null and returns the second argument otherwise.
void	Observer.update</