import javax.swing.*;
import java.util.Properties;

public class MenuBarDemo {

    static {
        System.setProperty ("apple.laf.useScreenMenuBar", "true");
    }

    public static void main (String[] args) {
        JFrame frame = new JFrame ("Menu Bar Demo");
        JMenuBar bar = new JMenuBar();
        JMenu fileMenu = new JMenu ("File");
        JMenu editMenu = new JMenu ("Edit");
        JMenu helpMenu = new JMenu ("Help");
        bar.add (fileMenu);
        bar.add (editMenu);
        bar.add (helpMenu);
        frame.setSize (300, 150);
        frame.setJMenuBar (bar);
        frame.setVisible (true);
    }

}