Hi! Thanks for all the replies. Sorry for the long post. I kinda got busy with other stuff... Anyways, as I've mentioned before, we're working in groups. My group decided to make a slot machine. One of my teammates already got the logic set up (with codes and stuff), so I decided to just work on the graphics. I already have the program with graphics, but now we have to figure out how to add a KeyListener or maybe a MouseListener, doesn't really matter which one we use. We're using the paint() of the GfxApp class, and we have no clue of how to add a listener. Other than that, I think we're ok. Anyways, thanks again for the replies!