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java7 API详解

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Java™ Platform, Standard Edition 7
API Specification

This document is the API specification for the Java™
Platform, Standard Edition.

See: Description

Packages

PackageDescription
java.appletProvides the classes necessary to create an applet and the classes an applet
uses to communicate with its applet context.

java.awtContains all of the classes for creating user
interfaces and for painting graphics and images.

java.awt.colorProvides classes for color spaces.

java.awt.datatransferProvides interfaces and classes for transferring data
between and within applications.

java.awt.dndDrag 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.eventProvides interfaces and classes for dealing with different
types of events fired by AWT components.

java.awt.fontProvides classes and interface relating to fonts.

java.awt.geomProvides the Java 2D classes for defining and performing operations
on objects related to two-dimensional geometry.

java.awt.imProvides classes and interfaces for the input method framework.

java.awt.im.spiProvides interfaces that enable the development of input methods
that can be used with any Java runtime environment.

java.awt.imageProvides classes for creating and modifying images.

java.awt.image.renderableProvides classes and interfaces for producing
rendering-independent images.

java.awt.printProvides classes and interfaces for a general printing API.

java.beansContains classes related to developing
beans -- components
based on the JavaBeans™ architecture.

java.beans.beancontextProvides classes and interfaces relating to bean context.

java.ioProvides for system input and output through data streams,
serialization and the file system.

java.langProvides classes that are fundamental to the design of the Java
programming language.

java.lang.annotationProvides library support for the Java programming language
annotation facility.

java.lang.instrumentProvides services that allow Java programming language agents to instrument programs running on the JVM.

java.lang.invokeThe 
java.lang.invoke
package contains dynamic language support provided directly by
the Java core class libraries and virtual machine.

java.lang.managementProvides the management interfaces for monitoring and management of the
Java virtual machine and other components in the Java runtime.

java.lang.refProvides reference-object classes, which support a limited degree of
interaction with the garbage collector.

java.lang.reflectProvides classes and interfaces for obtaining reflective
information about classes and objects.

java.mathProvides classes for performing arbitrary-precision integer
arithmetic (
BigInteger
) and arbitrary-precision decimal
arithmetic (
BigDecimal
).

java.netProvides the classes for implementing networking applications.

java.nioDefines buffers, which are containers for data, and provides an overview of the
other NIO packages.

java.nio.channelsDefines 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.spiService-provider classes for the 
java.nio.channels
 package.

java.nio.charsetDefines charsets, decoders, and encoders, for translating between bytes and
Unicode characters.

java.nio.charset.spiService-provider classes for the 
java.nio.charset
 package.

java.nio.fileDefines interfaces and classes for the Java virtual machine to access files,
file attributes, and file systems.

java.nio.file.attributeInterfaces and classes providing access to file and file system attributes.

java.nio.file.spiService-provider classes for the 
java.nio.file
 package.

java.rmiProvides the RMI package.

java.rmi.activationProvides support for RMI Object Activation.

java.rmi.dgcProvides classes and interface for RMI distributed
garbage-collection (DGC).

java.rmi.registryProvides a class and two interfaces for the RMI registry.

java.rmi.serverProvides classes and interfaces for supporting the server
side of RMI.

java.securityProvides the classes and interfaces for the security framework.

java.security.aclThe classes and interfaces in this package have been
superseded by classes in the java.security package.

java.security.certProvides classes and interfaces for parsing and managing
certificates, certificate revocation lists (CRLs), and
certification paths.

java.security.interfacesProvides interfaces for generating RSA (Rivest, Shamir and
Adleman AsymmetricCipher algorithm)
keys as defined in the RSA Laboratory Technical Note
PKCS#1, and DSA (Digital Signature
Algorithm) keys as defined in NIST's FIPS-186.

java.security.specProvides classes and interfaces for key specifications and algorithm
parameter specifications.

java.sqlProvides the API for accessing and processing data stored in a
data source (usually a relational database) using the
JavaTM programming language.

java.textProvides classes and interfaces for handling text, dates, numbers, and messages
in a manner independent of natural languages.

java.text.spiService provider classes for the classes in the java.text package.

java.utilContains 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.concurrentUtility classes commonly useful in concurrent programming.

java.util.concurrent.atomicA small toolkit of classes that support lock-free thread-safe
programming on single variables.

java.util.concurrent.locksInterfaces and classes providing a framework for locking and waiting
for conditions that is distinct from built-in synchronization and
monitors.

java.util.jarProvides 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.loggingProvides the classes and interfaces of
the JavaTM 2
platform's core logging facilities.

java.util.prefsThis package allows applications to store and retrieve user and system
preference and configuration data.

java.util.regexClasses for matching character sequences against patterns specified by regular
expressions.

java.util.spiService provider classes for the classes in the java.util package.

java.util.zipProvides classes for reading and writing the standard ZIP and GZIP
file formats.

javax.accessibilityDefines a contract between user-interface components and an assistive technology
that provides access to those components.

javax.activation
javax.activityContains Activity service related exceptions thrown by the ORB machinery during
unmarshalling.

javax.annotation
javax.annotation.processingFacilities for declaring annotation processors and for
allowing annotation processors to communicate with an annotation processing
tool environment.

javax.cryptoProvides the classes and interfaces for cryptographic operations.

javax.crypto.interfacesProvides interfaces for Diffie-Hellman keys as defined in
RSA Laboratories' PKCS #3.

javax.crypto.specProvides classes and interfaces for key specifications and algorithm
parameter specifications.

javax.imageioThe main package of the Java Image I/O API.

javax.imageio.eventA package of the Java Image I/O API dealing with synchronous
notification of events during the reading and writing of images.

javax.imageio.metadataA package of the Java Image I/O API dealing with reading and writing
metadata.

javax.imageio.plugins.bmpPackage containing the public classes used by the built-in BMP plug-in.

javax.imageio.plugins.jpegClasses supporting the built-in JPEG plug-in.

javax.imageio.spiA 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.streamA package of the Java Image I/O API dealing with low-level I/O from
files and streams.

javax.jws
javax.jws.soap
javax.lang.modelClasses and hierarchies of packages used to model the Java
programming language.

javax.lang.model.elementInterfaces used to model elements of the Java programming language.

javax.lang.model.typeInterfaces used to model Java programming language types.

javax.lang.model.utilUtilities to assist in the processing of
program elements and
types.

javax.managementProvides the core classes for the Java Management Extensions.

javax.management.loadingProvides the classes which implement advanced dynamic
loading.

javax.management.modelmbeanProvides the definition of the ModelMBean classes.

javax.management.monitorProvides the definition of the monitor classes.

javax.management.openmbeanProvides the open data types and Open MBean descriptor classes.

javax.management.relationProvides the definition of the Relation Service.

javax.management.remoteInterfaces for remote access to
JMX MBean servers.

javax.management.remote.rmiThe RMI connector is a connector for the JMX Remote API that
uses RMI to transmit client requests to a remote MBean server.

javax.management.timerProvides the definition of the Timer MBean.

javax.namingProvides the classes and interfaces for accessing naming services.

javax.naming.directoryExtends the javax.naming package to provide functionality
for accessing directory services.

javax.naming.eventProvides support for event notification when accessing naming and
directory services.

javax.naming.ldapProvides support for LDAPv3 extended operations and controls.

javax.naming.spi
javax.netProvides classes for networking applications.

javax.net.sslProvides classes for the secure socket package.

javax.printProvides the principal classes and interfaces for the
JavaTM Print Service API.

javax.print.attributeProvides classes and interfaces
that describe the types of JavaTM Print
Service attributes and how they can be collected into attribute sets.

javax.print.attribute.standardPackage javax.print.attribute.standard
contains classes for specific printing attributes.

javax.print.eventPackage javax.print.event contains event classes and listener interfaces.

javax.rmiContains user APIs for RMI-IIOP.

javax.rmi.CORBAContains portability APIs for RMI-IIOP.

javax.rmi.sslProvides implementations of 
RMIClientSocketFactory

and 
RMIServerSocketFactory
 over
the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols.

javax.scriptThe 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.authThis package provides a framework for authentication and
authorization.

javax.security.auth.callbackThis 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.kerberosThis package contains utility classes related to the Kerberos network
authentication protocol.

javax.security.auth.loginThis package provides a pluggable authentication framework.

javax.security.auth.spiThis package provides the interface to be used for
implementing pluggable authentication modules.

javax.security.auth.x500This package contains the classes that should be used to store
X500 Principal and X500 Private Crendentials in a
Subject.

javax.security.certProvides classes for public key certificates.

javax.security.saslContains class and interfaces for supporting SASL.

javax.sound.midiProvides interfaces and classes for I/O, sequencing, and synthesis of MIDI
(Musical Instrument Digital Interface) data.

javax.sound.midi.spiSupplies interfaces for service providers to implement when
offering new MIDI devices, MIDI file readers and writers, or sound bank readers.

javax.sound.sampledProvides interfaces and classes for capture, processing, and playback of sampled audio data.

javax.sound.sampled.spiSupplies abstract classes for service providers to subclass when
offering new audio devices, sound file readers and writers, or audio format converters.

javax.sqlProvides the API for server side data source access and processing from
the JavaTM programming language.

javax.sql.rowsetStandard interfaces and base classes for JDBC 
RowSet

implementations.

javax.sql.rowset.serialProvides utility classes to allow serializable mappings between SQL types
and data types in the Java programming language.

javax.sql.rowset.spiThe standard classes and interfaces that a third party vendor has to
use in its implementation of a synchronization provider.

javax.swingProvides a set of "lightweight"
(all-Java language) components that,
to the maximum degree possible, work the same on all platforms.

javax.swing.borderProvides classes and interface for drawing
specialized borders around a Swing component.

javax.swing.colorchooserContains classes and interfaces used by the 
JColorChooser

component.

javax.swing.eventProvides for events fired by Swing components.

javax.swing.filechooserContains classes and interfaces used by the 
JFileChooser
component.

javax.swing.plafProvides one interface and many abstract classes that
Swing uses to provide its pluggable look-and-feel capabilities.

javax.swing.plaf.basicProvides user interface objects built according to the
Basic look and feel.

javax.swing.plaf.metalProvides user interface objects built according to
the Java look and feel (once codenamed Metal),
which is the default look and feel.

javax.swing.plaf.multiProvides user interface objects that combine two or more look and feels.

javax.swing.plaf.nimbusProvides user interface objects built according to the cross-platform
Nimbus look and feel.

javax.swing.plaf.synthSynth is a skinnable look and feel in which all painting is
delegated.

javax.swing.tableProvides classes and interfaces for dealing with
javax.swing.JTable
.

javax.swing.textProvides classes and interfaces that deal with editable
and noneditable text components.

javax.swing.text.htmlProvides the class 
HTMLEditorKit
and supporting classes
for creating HTML text editors.

javax.swing.text.html.parserProvides the default HTML parser, along with support classes.

javax.swing.text.rtfProvides a class (
RTFEditorKit
) for creating Rich-Text-Format
text editors.

javax.swing.treeProvides classes and interfaces for dealing with
javax.swing.JTree
.

javax.swing.undoAllows developers to provide support for undo/redo
in applications such as text editors.

javax.toolsProvides interfaces for tools which can be invoked from a program,
for example, compilers.

javax.transactionContains three exceptions thrown by the ORB machinery during unmarshalling.

javax.transaction.xaProvides 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.bindProvides a runtime binding framework for client applications including
unmarshalling, marshalling, and validation capabilities.

javax.xml.bind.annotationDefines 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.attachmentThis 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.helpersJAXB Provider Use Only: Provides partial default implementations for
some of the javax.xml.bind interfaces.

javax.xml.bind.utilUseful client utility classes.

javax.xml.cryptoCommon classes for XML cryptography.

javax.xml.crypto.domDOM-specific classes for the 
javax.xml.crypto
 package.

javax.xml.crypto.dsigClasses for generating and validating XML digital
signatures.

javax.xml.crypto.dsig.domDOM-specific classes for the 
javax.xml.crypto.dsig
 package.

javax.xml.crypto.dsig.keyinfoClasses for parsing and processing 
KeyInfo
 elements and structures.

javax.xml.crypto.dsig.specParameter classes for XML digital signatures.

javax.xml.datatypeXML/Java Type Mappings.

javax.xml.namespaceXML Namespace processing.

javax.xml.parsersProvides classes allowing the processing of XML documents.

javax.xml.soapProvides the API for creating and building SOAP messages.

javax.xml.stream
javax.xml.stream.events
javax.xml.stream.util
javax.xml.transformThis package defines the generic APIs for processing transformation
instructions, and performing a transformation from source to result.

javax.xml.transform.domThis package implements DOM-specific transformation APIs.

javax.xml.transform.saxThis package implements SAX2-specific transformation APIs.

javax.xml.transform.staxProvides for StAX-specific transformation APIs.

javax.xml.transform.streamThis package implements stream- and URI- specific transformation APIs.

javax.xml.validationThis package provides an API for validation of XML documents.

javax.xml.wsThis package contains the core JAX-WS APIs.

javax.xml.ws.handlerThis package defines APIs for message handlers.

javax.xml.ws.handler.soapThis package defines APIs for SOAP message handlers.

javax.xml.ws.httpThis package defines APIs specific to the HTTP binding.

javax.xml.ws.soapThis package defines APIs specific to the SOAP binding.

javax.xml.ws.spiThis package defines SPIs for JAX-WS.

javax.xml.ws.spi.httpProvides HTTP SPI that is used for portable deployment of JAX-WS
web services in containers(for e.g.

javax.xml.ws.wsaddressingThis package defines APIs related to WS-Addressing.

javax.xml.xpathThis package provides an object-model neutral API for the
evaluation of XPath expressions and access to the evaluation
environment.

org.ietf.jgssThis 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.CORBAProvides 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_3The 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.portableProvides methods for the input and output of value types, and contains
other updates to the 
org/omg/CORBA/portable
package.

org.omg.CORBA.DynAnyPackageProvides the exceptions used with the 
DynAny
interface
(
InvalidValue
,
Invalid
, 
InvalidSeq
, and
TypeMismatch
).

org.omg.CORBA.ORBPackageProvides 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.portableProvides 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.TypeCodePackageProvides the user-defined exceptions 
BadKind

and 
Bounds
, which are thrown by methods in
in the class 
TypeCode
.

org.omg.CosNamingProvides a naming service for Java IDL.

org.omg.CosNaming.NamingContextExtPackageThis package contains the following classes, which are used in
org.omg.CosNaming.NamingContextExt:

org.omg.CosNaming.NamingContextPackageThis package contains Exception classes for the org.omg.CosNaming
package.

org.omg.DynamicThis 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.DynamicAnyProvides 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.DynAnyFactoryPackageThis 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.DynAnyPackageThis 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.IOPThis 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.CodecFactoryPackageThis package contains the exceptions
specified in the IOP::CodeFactory interface (as part of the Portable
Interceptors spec).

org.omg.IOP.CodecPackageThis package is generated from the IOP::Codec IDL interface
definition.

org.omg.MessagingThis 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.PortableInterceptorProvides a mechanism to register ORB hooks through which ORB services
can intercept the normal flow of execution of the ORB.

org.omg.PortableInterceptor.ORBInitInfoPackageThis 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.PortableServerProvides classes and interfaces for making the server side of your applications
portable across multivendor ORBs.

org.omg.PortableServer.CurrentPackageProvides method implementations with
access to the identity of the object on which the
method was invoked.

org.omg.PortableServer.POAManagerPackageEncapsulates the processing
state of the POAs it is associated with.

org.omg.PortableServer.POAPackageAllows programmers to construct object implementations that are portable
between different ORB products.

org.omg.PortableServer.portableProvides classes and interfaces for making the server side of your applications
portable across multivendor ORBs.

org.omg.PortableServer.ServantLocatorPackageProvides classes and interfaces for locating the servant.

org.omg.SendingContextProvides support for the marshalling of value types.

org.omg.stub.java.rmiContains RMI-IIOP Stubs for the Remote types that occur in the
java.rmi package.

org.w3c.domProvides 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.saxThis package provides the core SAX APIs.

org.xml.sax.extThis package contains interfaces to SAX2 facilities that
conformant SAX drivers won't necessarily support.

org.xml.sax.helpersThis package contains "helper" classes, including
support for bootstrapping SAX-based applications.

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