What is JAR file ?

What is JAR file ?,Java, C ,C++, ASP, ASP.net C# ,Struts ,Questions & Answer, Struts2, Ajax, Hibernate, Swing ,JSP , Servlet, J2EE ,Core Java ,Stping, VC++, HTML, DHTML, JAVASCRIPT, VB ,CSS, interview ,questions, and answers, for,experienced, and fresher

What is JAR file ?

JAR file is a file format based on the popular ZIP file format and is used for aggregating many files into one. A JAR file is essentially a zip file that contains an optional META-INF directory.

A JAR file can be created by the command-line jar tool, or by using the java.util.jar API in the Java platform. JAR file format enables you to bundle multiple files into a single archive file.

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