This file is divided into two parts:

Java SE

The Java Platform, Standard Edition (Java SE) APIs define the core Java platform for general-purpose computing. These APIs are located in names beginning withjavaIn the module at the beginning.

JDK

Java Development Kit (JDK) APIs are specific to the JDK and do not necessarily apply to all implementations of the Java SE Platform. These APIs are located in names beginning withjdkIn the module at the beginning.

Module	Description
java.base	Defines the foundational API of the Java SE platform.
java.compiler	Defines language models, annotation processing, and Java compiler APIs.
java.datatransfer	Define APIs for transferring data between and within applications.
java.desktop	Defines the AWT and Swing user interface toolkits, as well as APIs for accessibility, audio, imaging, printing, and JavaBeans.
java.instrument	Defines services that allow agent programs to detect programs running on the JVM.
java.logging	Defines the Java Logging API.
java.management	Defines the Java Management Extensions (JMX) API.
java.management.rmi	Defines the Java Management Extensions (JMX) Remote API. RMI connector 。
java.naming	Defines the Java Naming and Directory Interface (JNDI) API.
java.net.http	Defines the HTTP client and WebSocket API.
java.prefs	Defines the Preferences API.
java.rmi	Define the Remote Method Invocation (RMI) API.
java.scripting	Define the Scripting API.
java.se	Define the API for the Java SE platform.
java.security.jgss	Defines Java bindings for the IETF Generic Security Services API (GSS-API).
java.security.sasl	Defines Java support for the IETF Simple Authentication and Security Layer (SASL).
java.smartcardio	Defines the Java Smart Card I/O API.
java.sql	Define the JDBC API.
java.sql.rowset	Defines the JDBC RowSet API.
java.transaction.xa	Defines the API for supporting distributed transactions in JDBC.
java.xml	Defines the Java API for XML Processing (JAXP), the Streaming API for XML (StAX), the Simple API for XML (SAX), and the W3C Document Object Model (DOM) API.
java.xml.crypto	Define APIs for XML Encryption.
jdk.accessibility	Defines the JDK utility classes used by Assistive Technologies implementers.
jdk.attach	Define additional APIs.
jdk.charsets	ProvideNot in java.baseInjava.base (Mainly double-byte and IBM character sets).
jdk.compiler	Definition system Java compilerAnd Its Command-Line Equivalent Implementation of javac 。
jdk.crypto.cryptoki	Provides an implementation of the SunPKCS11 security provider.
jdk.crypto.ec	Provides the implementation of the SunEC security provider.
jdk.dynalink	Defines an API for high-level operations on dynamically linked objects.
jdk.editpad	Provide jdk.jshellUsed Editing Board Service Implementation 。
jdk.hotspot.agent	Defines the HotSpot maintainability agent implementation.
jdk.httpserver	Defines a JDK-specific HTTP server API.
jdk.jartool	Defines tools for handling Java Archive (JAR) files, including jarAnd jarsignerTool.
jdk.javadoc	Definition system documentation toolAnd Its Command-Line Equivalent Implementation of javadoc 。
jdk.jcmd	Defines tools for diagnosing and troubleshooting a JVM. jcmd ， jps ， jstatTool.
jdk.jconsole	Defining JMX Graphical Tools jconsole , used to monitor and manage running applications.
jdk.jdeps	Defines tools for analyzing Java libraries and programs, including dependency tools jdeps ， javapAnd jdeprscanTool.
jdk.jdi	Define the Java Debug Interface.
jdk.jdwp.agent	Provides an implementation of the Java Debug Wire Protocol (JDWP) agent.
jdk.jfr	Define the API for JDK Flight Recorder.
jdk.jlink	Definition jlinkCreate runtime images, tools jmodTool for creating and manipulating JMOD files and jimageA tool for inspecting JDK implementation-specific container files for classes and resources.
jdk.jshell	This module supports Java Programming Language 'snippet' evaluation tools, such as Read-Eval-Print Loops (REPL), including jshellTool.
jdk.jsobject	Defines the API for JavaScript objects.
jdk.jstatd	Definition jstatdA tool for launching the daemon of the jstat tool to remotely monitor JVM statistics.
jdk.localedata	Provide US localeLocale data for other language environments.
jdk.management	Defines JDK-specific management interfaces for the JVM.
jdk.management.agent	Define JMX management agent program.
jdk.management.jfr	Define the management interface for JDK Flight Recorder.
jdk.naming.dns	Provides an implementation of the DNS Java naming provider.
jdk.naming.rmi	Provides an implementation of the RMI Java naming provider.
jdk.net	Defines the JDK-specific Networking API.
jdk.pack	Defines tools for converting JAR files to compressed pack200 files and for converting packed files to JAR files, including pack200And unpack200Tool.
jdk.rmic	Definition rmicCompiler for generating stubs and skeletons using the Java Remote Method Protocol (JRMP) for remote objects.
jdk.scripting.nashorn	Provides an implementation of the Nashorn script engine and runtime environment for programs written in ECMAScript 5.1.
jdk.sctp	Defines JDK-specific APIs for SCTP.
jdk.security.auth	Provide javax.security.auth.*Implementation of interfaces and various authentication modules.
jdk.security.jgss	Defines the JDK extensions for GSS-API and the implementation of the SASL GSSAPI mechanism.
jdk.xml.dom	Defines a subset of the W3C Document Object Model (DOM) API that is not part of the Java SE API.
jdk.zipfs	Provides the implementation of the zip file system provider.