Menu

ja, se følgende eks:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class MenuTest extends JFrame implements ActionListener, WindowListener, KeyListener
{

    private int frameWidth = 640;
    private int frameHeight = 480;
      private JMenuBar menuBar;
      private JMenuItem item;
    private JLabel label;
   
    public MenuTest()
    {
        createFrame();
    }

    private void createFrame()
    {
        setTitle("MenuTest");
        setResizable(false);
        addKeyListener(this);
        addWindowListener(this);   

        //Place components here:
        label = new JLabel("Hello World");
        this.getContentPane().add(label);
       
        item = new JMenuItem("TEST");
        item.addActionListener(this);       
        menuBar = new JMenuBar();
        menuBar.add(item);
        this.getContentPane().add(menuBar, BorderLayout.NORTH);
   
        //Center Frame
        java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
        setSize(new java.awt.Dimension(frameWidth, frameHeight));
        setLocation( (screenSize.width-this.getWidth()) / 2, (screenSize.height - this.getHeight()) / 2);
    }

    public void actionPerformed(ActionEvent e)
    {
        if(e.getActionCommand().equals("TEST"))
            label.setText("Du trykkede TEST");
    }
   
    public void windowOpened(WindowEvent e){}
    public void windowClosing(WindowEvent e){ endProgram();}
    public void windowClosed(WindowEvent e){}
    public void windowIconified(WindowEvent e){}
    public void windowDeiconified(WindowEvent e){}
    public void windowActivated(WindowEvent e){}
    public void windowDeactivated(WindowEvent e){}

    public void keyReleased(KeyEvent e){}
    public void keyTyped(KeyEvent e){}
    public void keyPressed(KeyEvent e)
    {
        if(e.getKeyCode()==27)
            endProgram();
    }

    public void endProgram()
    {
        dispose();
        System.exit(0);
    }
}

class Main
{
    public static void main(String args[])
    {
          new MenuTest().show();
    }
}