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.JAR - File Extension for Java Archive Files
File extension JAR is used for Java archive files. A JAR sample file is provided. Free software for creating and opening JAR files are listed.
✍: FYIcenter.com
File Extension: .JAR
MIME Type: application/java-archive
File Content: Compressed files
What is JAR? JAR is a short name for Java ARchive, a file format used to archiving Java class files and associated metadata. JAR was developed by Sun Microsystems by extending the ZIP file format.
Some technical notes on JAR file format:
JAR is the file extension for JAR files.
JAR files are binary files. Here are the first 64 bytes of a sample JAR file dumped in HEX values:
50 4b 03 04 14 00 08 00 08 00 90 b8 24 38 00 00 PK...........8.. 00 00 00 00 00 00 00 00 00 00 0d 00 04 00 57 65 ..............We 6c 63 6f 6d 65 2e 63 6c 61 73 73 fe ca 00 00 6d lcome.class....m 50 c1 4a c3 40 10 7d d3 24 4d 1b a3 ad ad ad 56 P.J......M.....V
Notice that JAR files share the same magic number, "PK", with ZIP files.
JAR sample file: Click sample.jar to download.
JAR files can be created and unpacked by many free compression software:
2012-07-02, 6067👍, 0💬
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