How to make a method in a class, manipulate variables in another class?

Question

Working on a simple tic-tac-toe game in Java.

I have a class named GameHelpers. This class should contain useful methods for the game. The game happenes

Answer 1

Speaking from personal experience, if there's a bug that's only present in the EXE version, you might end up spending a lot of time trying to track it down and decide it's just easier to give users the other version instead.

It sounds to me like you're really trying to make things easier on your users overall. I don't know what your budget is, but perhaps something like install4j would be a better solution.