How to make an executable jar file in Java

The jar (Java Archive) tool of JDK provides the facility to create the executable jar file. An executable jar file calls the main method of the class if you double click it.

To create the executable jar file, you need to create .mf file, also known as manifest file.

Creating manifest file

To create manifest file, you need to write Main-Class, then colon, then space, then classname then enter. For example:

Creating executable jar file using jar tool

The jar tool provides many switches, some of them are as follows:

  1. -c creates new archive file
  2. -v generates verbose output. It displays the included or extracted resource on the standard output.
  3. -m includes manifest information from the given mf file.
  4. -f specifies the archive file name
  5. -x extracts files from the archive file

Now, let's write the code to generated the executable jar using mf file.

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