Java Development Kit
From Wikipedia, the free encyclopedia
The Java Development Kit (JDK) is a Sun product aimed at Java developers. Since the introduction of Java, it has been by far the most widely used Java SDK. On 17 November, 2006, it was released under the GNU General Public License (GPL).
The primary components of the JDK are a selection of programming tools, including:
- javac – The compiler, which converts source code into Java bytecode
- jar – The archiver, which packages related class libraries into a single JAR file
- javadoc – The documentation generator, which automatically generates documentation from source code comments
- jdb – The debugger
The JDK also comes with a complete Java Runtime Environment, usually called a private runtime. It consists of a Java Virtual Machine and all of the class libraries that will be present in the production environment, as well as additional libraries only useful to developers, such as the internationalization libraries and the IDL libraries.
Also included are a wide selection of example programs demonstrating the use of almost all portions of the Java API.
[edit] Ambiguity between a JDK and an SDK
The JDK is a subset of what is loosely defined as a SDK in the general sense. In the descriptions which accompany their recent releases for Java SE, EE, and ME, Sun acknowledge that under their terminology, the JDK forms the subset of the SDK which is responsible for the writing and running of Java programs. The remainder of the SDK is composed of extra software, such as Application Servers, Debuggers, and Documentation.
[edit] See also
[edit] External links
- Sun J2SE – Sun's current stable release (1.6.0).
- [1] Open source JDK 6 development
- [2] Open source JDK project
- [3] Community support
- Mustang – Sun's beta releases of its JVM and JDK (1.6.0).
- GNU Classpath – a free JDK replacement.
- Apache Harmony under the Apache License 2.0
- IBM JDK – IBM's JDK.
- BEA JRockit – BEA's JDK.
- Blackdown – Free JVM/JDK for Linux.
- Apple Java – JVM/JDK for Mac OS X.
| Java (Sun) | |
|---|---|
| Major Technologies: | Java (programming language) | Java Platform | Java Development Kit | Java Virtual Machine | Java Runtime Environment |
| History: | Java version history | Criticism of Java | Java Community Process | Sun Microsystems |
| Language Features: | Bytecode | Syntax | Applets | Servlets | JavaServer Pages |
