4.7 Putting Theory into Practice

Code, like art, is never really finished. You should explore your own ideas, even with the simple Box class discussed in this chapter. Can you add code that randomly places each Box instance on the Stage? Or changes the color of a Box instance? What about code that rotates a Box instance or animates it along a straight line? Try adding text fields on each box that display its width , height , and area . You could even make the text fields accept user input that can change the size of the Box .

You'll gain insight into how to add these kinds of features in the next chapter, which studies an ImageViewer class. This chapter covered a tremendous amount of technical ground in a largely theoretical way, so if you are a bit overwhelmed, don't worry. The next chapter covers a concrete implementation to help you apply what you've learned. See you there!