Chapter 15.9, Problem 15.9.3CP

Program Plan Intro

Key event:

• The actions that are performed using a keyboard when a key is pressed released or typed will in turn fire an event on the node or scene is called as key event.
• The actions or events are captured using the “KeyEvent” object.
• The events that are associated with the mouse event object gather location based on “getcode()” method of the key event.

Registering the handle object:

• To register the handle object, it is necessary to invoke the registration method of the source object.
• To register an handle the “setOnAction(handler)” gets invoked by the source object.