import java.awt.*;
import java.awt.geom.*;

public class XORRectangles {
  public static void main(String[] args) {
    ApplicationFrame f = new ApplicationFrame("XORRectangles v1.0") {
      private int mNumberOfLines = 25;
      private Color[] mColors = { Color.red, Color.green, Color.blue };
      
      public void paint(Graphics g) {
        Graphics2D g2 = (Graphics2D)g;
        
        // Set XOR mode, using white as the XOR color.
        g2.setXORMode(Color.white);
        // Paint a red rectangle.
        Rectangle2D r = new Rectangle2D.Double(50, 50, 150, 100);
        g2.setPaint(Color.red);
        g2.fill(r);
        // Shift the coordinate space.
        g2.transform(AffineTransform.getTranslateInstance(25, 25));
        // Draw a blue rectangle.
        g2.setPaint(Color.blue);
        g2.fill(r);
      }
    };
    f.setSize(300, 200);
    f.center();
    f.setVisible(true);
  }
}