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Best guides to fix Java & JAR file errors

Java is a set of several computer software products and specifications from Sun Microsystems that provide a system for developing application software and deploying it in a cross-platform computing environment.

Java is used in a wide variety of computing platforms from embedded devices and mobile phones on the low end, to enterprise servers and supercomputers on the high end.

A JAR file is a Java archive format that contains a collection of multiple Java class files, resources, and the associated metadata, all into a single file, for sharing software or libraries on the Java platform.

JAR files have a specific .jar extension and are created in the ZIP format. Computer users can extract JAR files using any standard decompression software.