Chapter 14.6, Problem 14.39CP

Explanation of Solution

Key events:

• The events generated by keyboard are termed as “Key events”.
• The key event types includes:
  • A “KEY_PRESSED” event is occurred when a key is been pressed by user.
  • A “KEY_RELEASED” event is occurred when a key is been released by user.
  • A “KEY_TYPED” event is occurred when a Unicode character such as alphabet letter, numeric digit or punctuation symbol is produced.
• An instance of “KeyEvent” class is been created when a key event occurs.
• The “KeyEvent” class denotes a subclass of “Event” class.
• The “KeyEvent” class is present in “javafx.event” package...