How to build a .jar file

Question

Please note I do not mean building a .jar file using an IDE such as eclipse.

What I'd like to accomplish is creating a .jar using my program. For example the user enters some information and then click "Build" and a .jar file would be built and would have that information that the user enters.

I was thinking about maybe saving a file with a .java extension and writing lines of code to that file and then use cmd to build a .jar file.

That's not really the solution I want to use as I'm sure there is a better way to do it.

Answer 1

Take a look at
https://github.com/Quillion/Engine/blob/master/jarIt.bat
This is what I use to pack my jars. You can also learn more about it by reading documentation