import java.awt.*;
import javax.swing.*;
 
class DumFigur extends JPanel {
    public DumFigur() {
	setBackground(Color.blue);
    }

    public void paintComponent(Graphics g) {
	System.out.println("DumFigur.paintComponent...");
	super.paintComponent(g);
	g.setColor(Color.black);
	g.drawRect(50, 100, 150, 200);
	g.drawRect(10, 20, 30, 40);
	g.fillRect(10, 20, 30, 40);
	g.setColor(Color.red);
	g.fillOval(20, 40, 60, 80);
	g.setColor(Color.pink);
	g.drawRoundRect(50, 100, 50, 100, 20, 20);
	g.draw3DRect(100, 150, 50, 100, true);
	g.draw3DRect(150, 200, 50, 100, false);
    }
} // class DumFigur

class Grafikfönster extends JFrame {
    public Grafikfönster(String titel) {
	super(titel);
	Container cp = getContentPane();
	cp.setLayout(new GridLayout(1, 3));
	cp.add(new DumFigur());
	cp.add(new DumFigur());
	cp.add(new DumFigur());
    }
} // class Grafikfönster

public class Grafikdemo1 {
    public static void main(String[] args) {
	Grafikfönster g = new Grafikfönster("Grafikdemo1");
        g.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        g.setSize(800, 400);
        g.setVisible(true);
    } // main
} // class Grafikdemo1