Short for Java Archive, a file format used to bundle multiple files into a single archive file Typically a JAR file will contain the class files and auxiliary resources associated with applets and applications However, a JAR file could contain libraries and extensions to the Java language itself, entire Java Applications, or Java utility code By convention, JAR files end with a jar extension See tutorial about JAR files
Java Archive A platform-independent file format that permits many files to be aggregated into one file