import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class Rutenett {
    public static void main (String[] arg) {
        try {
            UIManager.setLookAndFeel(
                UIManager.getCrossPlatformLookAndFeelClassName());
        } catch (Exception e) { System.exit(1); }

        JFrame vindu = new JFrame("Rutenett");
        vindu.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel panel = new JPanel();
        vindu.add(panel);

	panel.setLayout(new GridLayout(2,3));
	panel.add(new JButton("(0, 0)"));
	panel.add(new JButton("(0, 1)"));
	panel.add(new JButton("(0, 2)"));
	panel.add(new JButton("(1, 0)"));
	panel.add(new JButton("(1, 1)"));
	panel.add(new JButton("(1, 2)"));
	vindu.pack();  vindu.setVisible(true);
    }
}