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

public class BorderLayoutDemo extends JFrame {
  public BorderLayoutDemo () {
    super();
    setSize(400, 150);
    setTitle("BorderLayout Demo");
    setLayout(new BorderLayout());
    setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
    
    ButtonListener listener = new ButtonListener();
    JButton northButton = new JButton("North Button");
    northButton.addActionListener( listener );
    add(northButton, BorderLayout.NORTH);
    
    JButton southButton = new JButton("South Button");
    southButton.addActionListener( listener );
    add(southButton, BorderLayout.SOUTH);
    
    JButton westButton = new JButton("West Button");
    westButton.addActionListener( listener );
    add(westButton, BorderLayout.WEST);
    
    JButton eastButton = new JButton("East Button");
    eastButton.addActionListener( listener );
    add(eastButton, BorderLayout.EAST);
    
    JButton centerButton = new JButton("Center Button");
    centerButton.addActionListener( listener );
    add(centerButton, BorderLayout.CENTER);
  }
  
  public class ButtonListener implements ActionListener {
    public void actionPerformed(ActionEvent e) {
      System.out.println(e);
      System.exit(1);
    }
  }
  
  public static void main(String[] args) {
    BorderLayoutDemo w = new BorderLayoutDemo();
    w.setVisible(true);
  }
}