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// This example is from the book _Java AWT Reference_ by John Zukowski.
// Written by John Zukowski. Copyright (c) 1997 O'Reilly & Associates.
// You may study, use, modify, and distribute this example for any purpose.
// This example is provided WITHOUT WARRANTY either expressed or
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;
import javax.swing.JFrame;
public class union extends JFrame {
Rectangle r = new Rectangle(50, 50, 100, 100);
Rectangle r1 = new Rectangle(100, 100, 75, 75);
union() {
super("Union");
setSize(250, 250);
}
public void paint(Graphics g) {
g.setColor(Color.lightGray);
Rectangle r2 = r.union(r1);
g.fillRect(r2.x, r2.y, r2.width, r2.height);
g.setColor(Color.black);
g.drawRect(r.x, r.y, r.width, r.height);
g.drawRect(r1.x, r1.y, r1.width, r1.height);
}
public static void main(String[] args) {
JFrame f = new union();
f.setVisible(true);
}
}
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