The Java 2 SDK software includes tools useful for developing and testing programs written in the Java programming language and running on the Java platform. These tools are designed to be used from the command line. Except for appletviewer, these tools do not provide a graphical user interface.
See:
You should have 65 megabytes of free disk space before attempting to install the Java 2 SDK software. If you also install the separate documentation download bundle, you need an additional 90 megabytes of free disk space.
You can also send comments directly to j2se-linux-comments@sun.com
Development Tools(In the bin subdirectory.) Programs that will help you develop, execute, debug, and document programs written in the Java programming language. For further information, see the tool documentation.
Java Runtime Environment
(In the jre subdirectory.) An implementation of the Java runtime environment for use by the SDK. The runtime environment includes a Java virtual machine*, class libraries, and other files that support the execution of programs written in the Java programming language.
Additional Libraries
(In the lib subdirectory.) Additional class libraries and support files required by the development tools.
Demo Applets and Applications
(In the demo subdirectory.) Examples, with source code, of programming for the Java platform. These include examples that use Swing and other Java Foundation Classes.
C Header Files
(In the include subdirectory.) Header files that support native-code programming using the Java Native Interface and the Java Virtual Machine Debugger Interface.
Old Native Interface Headers
(In the include-old subdirectory.) Header files that support native-code programming using older interfaces. The header files in include-old are provided only for backward-compatibility. These interfaces are deprecated, unsupported and not available on all Java virtual machines.
Source Code
(In src.jar archive file.) Java programming language source files for all classes that make up the Java 2 core API (that is, sources files for the java.*, javax.* and org.omg.* packages, but not for com.sun.* packages). This source code is provided for informational purposes only, to help developers learn and use the Java programming language. These files do not include platform-specific implementation code and cannot be used to rebuild the class libraries. To extract these file, use this command:
jar xvf src.jarDo not modify core API source files. To extend the behavior of the core API, write subclasses of the core API classes.For API documentation, refer to the following sources:
- The Java Platform API Specification.
This provides brief descriptions of the API with an emphasis on specifications, not on examples.- The Java Class Libraries, Second Edition
Published by Addison-Wesley Longman as part of The Java Series. These volumes include much more elaborate descriptions, with definitions of terminology and examples for practically every class, interface and member.Documentation
(In the docs subdirectory.) This directory is created when the Java 2 SDK documentation is installed. It contains release documentation, Java API specifications, developer guides, tool documentation, demos, and links to related documentation.
Note that the Java 2 SDK has an internal implementation of a Java runtime environment for its own use. This internal runtime environment is contained in the SDK software's jre directory. Don't confuse the SDK's internal runtime environment with the Java 2 Runtime Environment, which is a separately installable product.
This release of the Java 2 Platform, Standard Edition, v 1.2.2 for Linux does not include JavaTM Plug-in. Java Plug-in provides connectivity between widely-distributed web browsers and the Java 2 Runtime Environment, Standard Edition (JRE). Typically, Java Plug-in is bundled with, and included as part of, the JRE. Future plans call for a Linux port of Java Plug-in and inclusion of it as part of the Linux JRE.
In the future, it is also Sun's intent to support a fully localized Japanese release. However, native Japanese fonts are currently not supported.
The Java 2 SDK, Standard Edition, is a product of Sun MicrosystemsTM, Inc.
Copyright (C) 1997-1999, Sun Microsystems, Inc. 901 San Antonio Road, Palo Alto, California 94303-4900 USA. All rights reserved.