Hello, all. This is my first post, and I am a bit new at this, as I am sure you will be able to tell soon. This code is loosely based on an example problem in Head First Java. It is a GUI with a button and a circle that should change color when the button is clicked. The code compiles and runs, but the problem is that nothing happens when I click on the button. I think it has to do with repaint(), but flipping through the API and looking online has not helped me much. Any ideas?