hinzufügen mehrerer Tasten mit JPanels

Habe ich einen einfachen Kompass-Programm, bewegt sich die GUI-Feld auf dem Bildschirm und ich bin jetzt voran auf hinzufügen, NE, NW, usw.

Diese beinhaltet die Nutzung des JPanels, da dies ermöglicht mehrere Objekte. Mein Problem ist, dass ich gemacht habe 9 separaten panels für die separaten Tasten, aber ich habe keine Ahnung, wie Sie das JFrame als alles, was ich tun scheint nicht zu funktionieren.

Irgendwelche Ideen wäre geschätzt.

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

public class MovingCompassExtraJFrame extends JFrame implements ActionListener {

    private JButton north;
    private JButton east;
    private JButton west; 
    private JButton south;
    private JButton center;
    private JButton northEast;
    private JButton northWest;
    private JButton southEast;
    private JButton southWest;
    int screenHeight;
    int screenWidth;
    int height;
    int width;

    public MovingCompassExtraJFrame() 
   {
        super();

            width = 400;
            height = 300;

            setSize(width, height);
            setLocation(200, 100);
            setDefaultCloseOperation(EXIT_ON_CLOSE);

            getContentPane().setBackground(Color.RED); 
            getContentPane().setLayout(new GridLayout(3,3));

            setupNEPanel();
            setupNPanel();
            setupNWPanel();
            setupWPanel();
            setupCPanel();
            setupEPanel();
            setupSWPanel();
            setupSPanel();
            setupSEPanel();

            setVisible(true);

   }

   private JPanel setupNEPanel()
      { 
            northEast = new JButton("Move to North East");

            JPanel northEP = new JPanel();

            getContentPane().add(northEast);
            east.addActionListener(this);

            return northEP;
      }

    private JPanel setupNPanel()
      {
         north = new JButton("Move to North");

         JPanel northP = new JPanel();

         getContentPane().add(north);
         north.addActionListener(this);

         return northP;
      }

    private JPanel setupNWPanel()
      {
         northWest = new JButton("Move to North West");

         JPanel northWP = new JPanel();

         getContentPane().add(northWest); 
         west.addActionListener(this);

         return northWP;
      }

    private JPanel setupWPanel()
      {

            west = new JButton("Move to West");

            JPanel westP = new JPanel();

            getContentPane().add(west); 
            west.addActionListener(this);

            return westP;
      }

    private JPanel setupCPanel()
      {
            center = new JButton("Move to Center");

            JPanel centerP = new JPanel();

            getContentPane().add(center);
            center.addActionListener(this);

            return centerP;
      }

    private JPanel setupEPanel()
      {
            east = new JButton("Move to East");

            JPanel eastP = new JPanel();

            getContentPane().add(east);
            east.addActionListener(this);

            return eastP;

      }

    private JPanel setupSEPanel()
      {
            southEast = new JButton("Move to South East");

            JPanel southEP = new JPanel();

            getContentPane().add(southEast);
            east.addActionListener(this);

            return southEP;
      }

    private JPanel setupSPanel()
      {
            south = new JButton("Move to South");

            JPanel southP = new JPanel();

            getContentPane().add(south);
            south.addActionListener(this);

            return southP;
      }

    private JPanel setupSWPanel()
      {
            southWest = new JButton("Move to South West");

            JPanel southWP = new JPanel();

            getContentPane().add(southWest); 
            west.addActionListener(this);

            return southWP;
      }

    public void actionPerformed(ActionEvent e)
    {
        screenHeight = Toolkit.getDefaultToolkit().getScreenSize().height;
        screenWidth = Toolkit.getDefaultToolkit().getScreenSize().width;


        if (e.getSource() == north)
        {
            this.setLocation((screenWidth - width)/ 2, 0);
        }
        else if (e.getSource() == south)
        {
            this.setLocation((screenWidth - width)/ 2, (screenHeight-height)- 30);
        }
        else if (e.getSource() == east)
        {
            this.setLocation(screenWidth - width , (screenHeight-height)/2);
        }
        else if (e.getSource() == west)
        {
           this.setLocation(0, (screenHeight-height)/2); 
        }
        else if (e.getSource() == center)
        {
            this.setLocation((screenWidth-width)/2, (screenHeight - height)/2);
        }
  }
}