803: Highlights

• Applets are window-producing containers used by web browsers
• Applets have no close button, no window listeners, no sizing method, and no show method.
• Applets have init, start, stop, and destroy methods, as well as a zero-argument constructor.
• If you want to test an applet, then you may want to define a testing class with a main method that creates an instance of the applet and attaches that applet to a frame's content pane.