public class MyList extends Component {   // a class that sends ItemEvents

  // this will be the head of a linked list of AWTEventMulticaster objects

  protected ItemListener listener = null;

  public void addItemListener(ItemListener l) {      // add a listener

    listener = AWTEventMulticaster.add(listener, l);

  }

  public void removeItemListener(ItemListener l) {   // remove a listener

    listener = AWTEventMulticaster.remove(listener, l);

  }

  protected void fireItemEvent(ItemEvent e) {        // notify all listeners

    if (listener != null) listener.itemStateChanged(e);

  }

  // The rest of the class goes here

}

public class AWTEvent Multicaster  extends Object 

                                   implements ComponentListener, ContainerListener, FocusListener, KeyListener, MouseListener, MouseMotionListener, WindowListener, ActionListener,ItemListener, AdjustmentListener, TextListener {

    // Protected Constructor

            protected AWTEventMulticaster(EventListener a, EventListener b);

    // Protected Instance Variables

            protected EventListener a;

            protected EventListener b;

    // Class Methods

            public static ComponentListener add(ComponentListener a, ComponentListener b);

            public static ContainerListener add(ContainerListener a, ContainerListener b);

            public static FocusListener add(FocusListener a, FocusListener b);

            public static KeyListener add(KeyListener a, KeyListener b);

            public static MouseListener add(MouseListener a, MouseListener b);

            public static MouseMotionListener add(MouseMotionListener a, MouseMotionListener b);

            public static WindowListener add(WindowListener a, WindowListener b);

            public static ActionListener add(ActionListener a, ActionListener b);

            public static ItemListener add(ItemListener a, ItemListener b);

            public static AdjustmentListener add(AdjustmentListener a, AdjustmentListener b);

            public static TextListener add(TextListener a, TextListener b);

            protected static EventListener addInternal(EventListener a, EventListener b);

            public static ComponentListener remove(ComponentListener l, ComponentListener oldl);

            public static ContainerListener remove(ContainerListener l, ContainerListener oldl);

            public static FocusListener remove(FocusListener l, FocusListener oldl);

            public static KeyListener remove(KeyListener l, KeyListener oldl);

            public static MouseListener remove(MouseListener l, MouseListener oldl);

            public static MouseMotionListener remove(MouseMotionListener l, MouseMotionListener oldl);

            public static WindowListener remove(WindowListener l, WindowListener oldl);

            public static ActionListener remove(ActionListener l, ActionListener oldl);

            public static ItemListener remove(ItemListener l, ItemListener oldl);

            public static AdjustmentListener remove(AdjustmentListener l, AdjustmentListener oldl);

            public static TextListener remove(TextListener l, TextListener oldl);

            protected static EventListener removeInternal(EventListener l, EventListener oldl);

            protected static void save(ObjectOutputStream s, String k, EventListener l) throws IOException;

    // Public Instance Methods

            public void actionPerformed(ActionEvent e);  // From ActionListener

            public void adjustmentValueChanged(AdjustmentEvent e);  // From AdjustmentListener

            public void componentAdded(ContainerEvent e);  // From ContainerListener

            public void componentHidden(ComponentEvent e);  // From ComponentListener

            public void componentMoved(ComponentEvent e);  // From ComponentListener

            public void componentRemoved(ContainerEvent e);  // From ContainerListener

            public void componentResized(ComponentEvent e);  // From ComponentListener

            public void componentShown(ComponentEvent e);  // From ComponentListener

            public void focusGained(FocusEvent e);  // From FocusListener

            public void focusLost(FocusEvent e);  // From FocusListener

            public void itemStateChanged(ItemEvent e);  // From ItemListener

            public void keyPressed(KeyEvent e);  // From KeyListener

            public void keyReleased(KeyEvent e);  // From KeyListener

            public void keyTyped(KeyEvent e);  // From KeyListener

            public void mouseClicked(MouseEvent e);  // From MouseListener

            public void mouseDragged(MouseEvent e);  // From MouseMotionListener

            public void mouseEntered(MouseEvent e);  // From MouseListener

            public void mouseExited(MouseEvent e);  // From MouseListener

            public void mouseMoved(MouseEvent e);  // From MouseMotionListener

            public void mousePressed(MouseEvent e);  // From MouseListener

            public void mouseReleased(MouseEvent e);  // From MouseListener

            public void textValueChanged(TextEvent e);  // From TextListener

            public void windowActivated(WindowEvent e);  // From WindowListener

            public void windowClosed(WindowEvent e);  // From WindowListener

            public void windowClosing(WindowEvent e);  // From WindowListener

            public void windowDeactivated(WindowEvent e);  // From WindowListener

            public void windowDeiconified(WindowEvent e);  // From WindowListener

            public void windowIconified(WindowEvent e);  // From WindowListener

            public void windowOpened(WindowEvent e);  // From WindowListener

    // Protected Instance Methods

            protected EventListener remove(EventListener oldl);

            protected void saveInternal(ObjectOutputStream s, String k) throws IOException;

}