Some Differences Between ZIP and JAR Formats
The JAR file format was really introduced in the JDK 1.1 version. Although there was little to do with JAR files in 1.0.2, it wasn't until the JDK 1.1 when JAR files started to become the preferred method of packing classes.
Most of the literature that was produced a few years ago had to do with how JAR files could be used in Applets. This was mainly due to the increased download speed because of the manner in which HTTP downloads files. However, now entire applications are being distributed in JAR file formats as described in the "Using JAR Files" section previously.
Although the JAR file format is based on the ZIP file format, there are some differences between ZIP files and JAR files when it comes ...
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