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Last modified: Tuesday, March 12, 2002 

Short for Java Archive, a file format used to bundle all components required by a Java applet. JAR files simplify the downloading of applets since all the components (.class files, images, sounds, etc.) can be packaged into a single file. In addition, JAR supports data compression, which further decreases download times.

By convention, JAR files end with a .jar extension.

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The Java Tutorial - A Practical Guide for Programmers
Covers the fundamentals of programming in the Java language as well as information about the Java Development Kit (JDK), JavaBeans, JAR files, and JNI. This tutorial is hosted by Sun Microsystems.

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Data Compression

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