have an eventlistener change values

hi,

I'm working through a little project to teach myself some java, but I've hit a wall here. I'll try to explain what I'm trying to do:

I'm writing a simplified minesweeper. I use JButtons as squares with MouseListeners to process left/right-clicks.

The problem is that I don't know how to make an EventListener return a value, or change a value in the main class that created the Listener.

I know how to pass parameters to the EventListeners, but that doesn't help me solve this problem.

any help would be appreciated,
thx

You would do well to search google (or check out wikipedia) for the MVC pattern. What you'd do is give your main class public methods to allow other classes to change its state, and then have your event listeners do just that.