"Slow menus" - what's the problem?

Question

Hi Swing people,
Here is my first experiment with menus. For some reason they seem "slow" compared to menus in other apps. Is this because of me (and my bad programming) or is Java menus just "slow"?
Also, I'm running OS X and would like my menus to be in the menu bar at the top of my screen as "real" OS X apps. How do I do that?
Thanks.
Stefan
- a newbie
Here is my code:
import javax.swing.*;
import java.awt.*;
class MoreSwing
    void swingMe()
        JFrame frame = new JFrame("Should this parameter be an action?");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Container content = frame.getContentPane();
        JMenuBar menuBar = new JMenuBar();
        content.add(menuBar, BorderLayout.PAGE_START);
        JMenu menu;
        JMenuItem item;
        menu = new JMenu("File");
        menuBar.add(menu);
        menu.add(new JMenuItem("New Browser"));
        menu.add(new JMenuItem("New Tab"));
        menu.add(new JMenuItem("New Source Document"));
        menu.add(new JSeparator());
        menu.add(new JMenuItem("Open Location"));
        menu.add(new JMenuItem("Open File"));
        menu.add(new JSeparator());
        menu.add(new JMenuItem("Save"));
        menu = new JMenu("Edit");
        menuBar.add(menu);
        menu.add(new JMenuItem("Undo"));
        menu.add(new JMenuItem("Redo"));
        menu.add(new JSeparator());
        menu.add(new JMenuItem("Cut"));
        menu.add(new JMenuItem("Copy"));
        menu.add(new JMenuItem("Paste"));
        menu.add(new JMenuItem("Paste From File..."));
        menu.add(new JSeparator());       
        menu.add(new JMenuItem("Delete"));
        menu.add(new JMenuItem("Select All"));
        menu = new JMenu("View");
        menuBar.add(menu);
        menu.add(new JMenuItem("Go To Location"));
        menu.add(new JSeparator());       
        menu.add(new JMenuItem("Stop Load"));
        menu.add(new JMenuItem("Reload"));
        menu.add(new JSeparator());       
        menu.add(new JMenuItem("Load All Images"));
        menu.add(new JSeparator());       
        menu.add(new JMenuItem("View In Source Editor"));
        menu = new JMenu("History");
        menuBar.add(menu);
        menu.add(new JMenuItem("Go Back"));
        menu.add(new JMenuItem("Go Forward"));
        menu.add(new JMenuItem("Go To Start Page"));
        menu = new JMenu("Bookmarks");
        menuBar.add(menu);
        menu.add(new JMenuItem("Show Bookmarks Page"));
        menu.add(new JMenuItem("Add To Bookmarks..."));
        menu.add(new JSeparator());       
        menu.add(new JMenuItem("Open Next"));
        menu = new JMenu("Workspace");
        menuBar.add(menu);
        menu.add(new JMenuItem("Show Workspaces"));
        menu.add(new JMenuItem("New Workspace"));
        menu.add(new JMenuItem("Delete Workspace"));
        menu.add(new JSeparator());       
        menu.add(new JMenuItem("Next Workspace"));
        menu.add(new JMenuItem("Previous Workspace"));
        menu.add(new JSeparator());       
        menu.add(new JMenuItem("Take Snapshot"));
        menu.add(new JMenuItem("Restore Snapshot"));
        menu = new JMenu("Window");
        menuBar.add(menu);
        menu.add(new JMenuItem("Close Window"));
        menu.add(new JMenuItem("Minimize Window"));
        menu.add(new JMenuItem("Zoom Window"));
        menu.add(new JSeparator());       
        menu.add(new JMenuItem("Next Tab"));
        menu.add(new JMenuItem("Previous Tab"));
        menu.add(new JMenuItem("Close Tab"));
        menu = new JMenu("Help");
        menuBar.add(menu);
        menu.add(new JMenuItem("Swing Help"));
        menu.add(new JMenuItem("Keyboard Shortcuts"));
        menu.add(new JSeparator());       
        menu.add(new JMenuItem("Acknowledgments"));
        menu.add(new JMenuItem("Swing Product Page"));
        menu.add(new JMenuItem("Send Feedback..."));
        JTextArea text = new JTextArea();
        text.setPreferredSize(new Dimension(700,700));
        content.add(text, BorderLayout.CENTER);
        JTextField field = new JTextField();
        content.add(field, BorderLayout.PAGE_END);
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    public static void main(String[] args)
        MoreSwing swingMe = new MoreSwing();
        swingMe.swingMe();
}

Answer 1

You should set the JMenuBar to the JFrame by using frame.setJMenuBar(menuBar);
Read the tutorial:
http://java.sun.com/docs/books/tutorial/uiswing/components/menu.html
Read the "Moving the menu bar" section here:
http://java.sun.com/developer/technicalArticles/JavaLP/JavaToMac/