import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.*;

import javax.swing.*;

class SimpelTeller {

	static int tall = 0;
	public static void main(String[] args) {

		JFrame frame = new JFrame();
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		JPanel panel = new JPanel(new BorderLayout(10, 10));
		frame.add(panel);

		JLabel tekst = new JLabel("Tallet er: " + tall);

		JButton knapp = new JButton("Trykk på meg!");

		knapp.addActionListener(new ActionListener(){
			@Override
			public void actionPerformed(ActionEvent e) {
				System.out.println("Knappen trykkes, tallet er: " + ++tall);
				tekst.setText("Tallet er: " + tall);
			}
		});

		panel.add(tekst, BorderLayout.WEST);
		panel.add(knapp, BorderLayout.EAST);
		frame.setPreferredSize(new Dimension(300, 200));
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
	}
}