// This example is from _Java Examples in a Nutshell_. (http://www.oreilly.com) // Copyright (c) 1997 by David Flanagan // This example is provided WITHOUT ANY WARRANTY either expressed or implied. // You may study, use, modify, and distribute it for non-commercial purposes. // For any commercial use, see http://www.davidflanagan.com/javaexamples /** * This is a subclass of Rect that allows itself to be drawn on a screen. * It inherits all the fields and methods of Rect * It relies on the java.awt.Graphics object to perform the drawing. **/ public class DrawableRect extends Rect { /** The DrawableRect constructor just invokes the Rect() constructor */ public DrawableRect(int x1, int y1, int x2, int y2) { super(x1,y1,x2,y2); } /** This is the new method defined by DrawableRect */ public void draw(java.awt.Graphics g) { g.drawRect(x1, y1, (x2 - x1), (y2-y1)); } }