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Find the doc for the jar command. It is part of the Java SDK.
Read the doc and look at the sample batch file I posted that uses the jar command.
%DEV_DRIVE% is one of several environment variables...

I use the jar command from a batch file. See the doc for the syntax of the command.
Here is one of the batch files:


The names in % are environment varables.

You can put all the class files and other resources the program needs in a single jar file.
I use the jar command (part of the JDK) to build and update jar files.