In this chapter, you learned how to use some basic Swing components, and we built the foundation for a powerful hierarchical custom GUI system. While it's fresh in your mind, now would be a good time to start trying to add extra components to the custom GUI system. In no time, you will have your own powerful GUI library, which will serve you far better for games coding than Swing. Plus you have full control over how it works, and you will also understand how all your components work!