What is JAR file in Java? What is this file used for?
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What is JAR file in Java? What is this file used for?
JAR:Java Archive FIle
Used to merge together classes/packages into a single file,which is actually compressed.This file may be viewed as such or extracting its contents.
Technically, it's just a ZIP archive, with the additional META-INF file in the right location, containing a bit of additional info about the file's contents.