Category:Java

Java
This programming language may be used to instruct a computer to perform a task.

See Also:	Java on the HOPL

Listed below are all of the tasks on Rosetta Code which have been solved using Java.

The Java programming language, developed by Sun Microsystems, is a language aimed at allowing "high-performance", virtual application development.

Java source files (.java files) are typically compiled to an intermediate bytecode language (.class files) and executed by a Java Virtual Machine. Most modern JVMs further compile the bytecode into your processor's native machine code during execution. This native code translation is done via a JIT compiler that is built in to the JVM. Some Java compilers (such as GCJ) can compile Java code to native machine code ahead-of-time rather than just-in-time.

The primary benefits of Java are:

• Cross-platform (Write Once, Run Anywhere (if all of the libraries are ported))
• Comprehensive class library (which is very well documented)
• Automatic memory management (So users don't have to learn memory management)
• Huge user community
• Well supported by the open source community and commercial industry (Sun, IBM, Oracle, HP, BEA, Apple, etc.)

The primary flaws of Java are:

• "High performance" (Java code running with a modern JIT is NOT comparable to the speed of efficient C++)
• Not compiled (Allowing for super-duper speed?)
• "You acknowledge that Software is not designed, licensed or intended for use in the design, construction, operation or maintenance of any nuclear facility." -See the EULA

Java is used in a variety of environments including desktop applications, embedded device (PDA and wireless phone) applications, server-side web page serving applications (as JSP), and applets embedded in web pages.

According to a variety of sources, Java is currently the most popular programming language in the world.

Useful Java links:

• java.com
• java.net
• java.sun.com
• OpenJDK