Chapter 13

Quiz

1. What's the difference between reloading and restarting an applet?

Exercises

1. The typewriter applet is really very basic. Try to spruce it up enough to pass as a simple word processor. This exercise is fairly open ended. Possibilities include
   • A data structure that can handle arbitrary amounts of text
   • Break for word wrapping on spaces
   • Insert a blinking vertical bar at the position of the insertion point
   • Dynamically adjust the text flow based on the size of the window and the size of the font
   • Handle the delete key
   • Use the mouse to position the insertion point
   • An insert mode as well as the current typeover mode
   • Set the font to Courier
   • Clean up the (by now quite messy) keyDown method by breaking it up into smaller pieces. Try creating a cursor object that responds to moveLeft, moveRight, moveTo(), and other such messages.
   Don't get too wrapped up in this though. You'll see in Chapter 15 that Java does provide a TextArea class that gives you all this functionality, essentially for free.