This file must be extracted, or uncompressed so that you can use the files/folder within.
Because Mac OS X ships with the Jar Launcher application, the end user needs only double click on the jar file and the application will launch.
How to extract the contents of a java jar?.How to launch JAR file from command line?.How do you extract a JAR file on a Mac?.How do I use 7zip to extract files from the command line?.How do I use 7zip to extract a jar file?.
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This format is unrelated to the Sun JAR archive format.įile types | Find file converter | Software | Articles | FAQs | Privacy policy | About us | RSS
JAR comes in a 16 bit DOS version and a 32 bit Windows version. JAR has a similar command and option feature set to the PC Archiver ARJ, but it is not archive compatible with ARJ.
Portability: The mechanism for handling *.jar files is a standard part of the Java platform's core API. Package Versioning: A jar file can hold data about the files it contains, such as vendor and version information. Sealing a package within a jar file means that all classes defined in that package must be found in the same JAR file. Package Sealing: Packages stored in *.jar files can be optionally sealed so that the package can enforce version consistency. By using the JAR file format, you can turn your software into extensions as well. Java 3D and JavaMail are examples of extensions developed by Sun. Packaging for extensions: The extensions framework provides a means by which you can add functionality to the Java core platform, and the JAR file format defines the packaging for extensions. Users who recognize your signature can then optionally grant your software security privileges it wouldn't otherwise have.ĭecreased download time: If your applet is bundled in a JAR file, the applet's class files and associated resources can be downloaded to a browser in a single HTTP transaction without the need for opening a new connection for each file.Ĭompression: The JAR format allows you to compress your files for efficient storage. Security: You can digitally sign the contents of a jar file. The JAR file format provides many benefits:
Typically a jar file contains the class files and auxiliary resources associated with applets and applications. The Java Archive (JAR) file format enables you to bundle multiple files into a single archive file. The jar file extension is mainly associated with Java and used for Java archives.