/** Adds the menu items to the menuber. */
  protected void arrangeMenu() {

    // Build the first menu.
    fileMenu = new JMenu("File");
    fileMenu.setMnemonic(KeyEvent.VK_F);
    menuBar.add(fileMenu);

    viewMenu = new JMenu("View");
    viewMenu.setMnemonic(KeyEvent.VK_V);
    menuBar.add(viewMenu);

    runMenu = new JMenu("Run");
    runMenu.setMnemonic(KeyEvent.VK_R);
    menuBar.add(runMenu);

    // Build the second menu.
    helpMenu = new JMenu("Help");
    helpMenu.setMnemonic(KeyEvent.VK_H);
    menuBar.add(helpMenu);

    programMenuItem = new JMenuItem("Load Program", KeyEvent.VK_O);
    programMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            programMenuItem_actionPerformed();
          }
        });
    fileMenu.add(programMenuItem);

    scriptMenuItem = new JMenuItem("Load Script", KeyEvent.VK_P);
    scriptMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            scriptMenuItem_actionPerformed();
          }
        });
    fileMenu.add(scriptMenuItem);
    fileMenu.addSeparator();

    exitMenuItem = new JMenuItem("Exit", KeyEvent.VK_X);
    exitMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X, InputEvent.ALT_MASK));
    exitMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            exitMenuItem_actionPerformed();
          }
        });
    fileMenu.add(exitMenuItem);

    viewMenu.addSeparator();

    ButtonGroup animationRadioButtons = new ButtonGroup();

    animationSubMenu = new JMenu("Animate");
    animationSubMenu.setMnemonic(KeyEvent.VK_A);
    viewMenu.add(animationSubMenu);

    partAnimMenuItem = new JRadioButtonMenuItem("Program flow");
    partAnimMenuItem.setMnemonic(KeyEvent.VK_P);
    partAnimMenuItem.setSelected(true);
    partAnimMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            partAnimMenuItem_actionPerformed();
          }
        });
    animationRadioButtons.add(partAnimMenuItem);
    animationSubMenu.add(partAnimMenuItem);

    fullAnimMenuItem = new JRadioButtonMenuItem("Program & data flow");
    fullAnimMenuItem.setMnemonic(KeyEvent.VK_D);
    fullAnimMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            fullAnimMenuItem_actionPerformed();
          }
        });
    animationRadioButtons.add(fullAnimMenuItem);
    animationSubMenu.add(fullAnimMenuItem);

    noAnimMenuItem = new JRadioButtonMenuItem("No Animation");
    noAnimMenuItem.setMnemonic(KeyEvent.VK_N);
    noAnimMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            noAnimMenuItem_actionPerformed();
          }
        });
    animationRadioButtons.add(noAnimMenuItem);
    animationSubMenu.add(noAnimMenuItem);

    ButtonGroup additionalDisplayRadioButtons = new ButtonGroup();

    additionalDisplaySubMenu = new JMenu("View");
    additionalDisplaySubMenu.setMnemonic(KeyEvent.VK_V);
    viewMenu.add(additionalDisplaySubMenu);

    scriptDisplayMenuItem = new JRadioButtonMenuItem("Script");
    scriptDisplayMenuItem.setMnemonic(KeyEvent.VK_S);
    scriptDisplayMenuItem.setSelected(true);
    scriptDisplayMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            scriptDisplayMenuItem_actionPerformed();
          }
        });
    additionalDisplayRadioButtons.add(scriptDisplayMenuItem);
    additionalDisplaySubMenu.add(scriptDisplayMenuItem);

    outputMenuItem = new JRadioButtonMenuItem("Output");
    outputMenuItem.setMnemonic(KeyEvent.VK_O);
    outputMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            outputMenuItem_actionPerformed();
          }
        });
    additionalDisplayRadioButtons.add(outputMenuItem);
    additionalDisplaySubMenu.add(outputMenuItem);

    compareMenuItem = new JRadioButtonMenuItem("Compare");
    compareMenuItem.setMnemonic(KeyEvent.VK_C);
    compareMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            compareMenuItem_actionPerformed();
          }
        });
    additionalDisplayRadioButtons.add(compareMenuItem);
    additionalDisplaySubMenu.add(compareMenuItem);

    noAdditionalDisplayMenuItem = new JRadioButtonMenuItem("Screen");
    noAdditionalDisplayMenuItem.setMnemonic(KeyEvent.VK_N);
    noAdditionalDisplayMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            noAdditionalDisplayMenuItem_actionPerformed();
          }
        });
    additionalDisplayRadioButtons.add(noAdditionalDisplayMenuItem);
    additionalDisplaySubMenu.add(noAdditionalDisplayMenuItem);

    ButtonGroup formatRadioButtons = new ButtonGroup();

    numericFormatSubMenu = new JMenu("Format");
    numericFormatSubMenu.setMnemonic(KeyEvent.VK_F);
    viewMenu.add(numericFormatSubMenu);

    decMenuItem = new JRadioButtonMenuItem("Decimal");
    decMenuItem.setMnemonic(KeyEvent.VK_D);
    decMenuItem.setSelected(true);
    decMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            decMenuItem_actionPerformed();
          }
        });
    formatRadioButtons.add(decMenuItem);
    numericFormatSubMenu.add(decMenuItem);

    hexaMenuItem = new JRadioButtonMenuItem("Hexadecimal");
    hexaMenuItem.setMnemonic(KeyEvent.VK_H);
    hexaMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            hexaMenuItem_actionPerformed();
          }
        });
    formatRadioButtons.add(hexaMenuItem);
    numericFormatSubMenu.add(hexaMenuItem);

    binMenuItem = new JRadioButtonMenuItem("Binary");
    binMenuItem.setMnemonic(KeyEvent.VK_B);
    binMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            binMenuItem_actionPerformed();
          }
        });
    formatRadioButtons.add(binMenuItem);
    numericFormatSubMenu.add(binMenuItem);

    viewMenu.addSeparator();

    singleStepMenuItem = new JMenuItem("Single Step", KeyEvent.VK_S);
    singleStepMenuItem.setAccelerator(KeyStroke.getKeyStroke("F11"));
    singleStepMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            singleStepMenuItem_actionPerformed();
          }
        });
    runMenu.add(singleStepMenuItem);

    ffwdMenuItem = new JMenuItem("Run", KeyEvent.VK_F);
    ffwdMenuItem.setAccelerator(KeyStroke.getKeyStroke("F5"));
    ffwdMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            ffwdMenuItem_actionPerformed();
          }
        });
    runMenu.add(ffwdMenuItem);

    stopMenuItem = new JMenuItem("Stop", KeyEvent.VK_T);
    stopMenuItem.setAccelerator(KeyStroke.getKeyStroke("shift F5"));
    stopMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            stopMenuItem_actionPerformed();
          }
        });
    runMenu.add(stopMenuItem);

    rewindMenuItem = new JMenuItem("Reset", KeyEvent.VK_R);
    rewindMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            rewindMenuItem_actionPerformed();
          }
        });
    runMenu.add(rewindMenuItem);

    runMenu.addSeparator();

    breakpointsMenuItem = new JMenuItem("Breakpoints", KeyEvent.VK_B);
    breakpointsMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            breakpointsMenuItem_actionPerformed();
          }
        });
    runMenu.add(breakpointsMenuItem);

    profilerMenuItem = new JMenuItem("Profiler", KeyEvent.VK_I);
    profilerMenuItem.addActionListener(
        new ActionListener() {
          @Override
          public void actionPerformed(ActionEvent e) {
            showProfiler();
          }
        });
    profilerMenuItem.setEnabled(false);
    runMenu.add(profilerMenuItem);

    usageMenuItem = new JMenuItem("Usage", KeyEvent.VK_U);
    usageMenuItem.setAccelerator(KeyStroke.getKeyStroke("F1"));
    usageMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            usageMenuItem_actionPerformed();
          }
        });
    helpMenu.add(usageMenuItem);

    aboutMenuItem = new JMenuItem("About ...", KeyEvent.VK_A);
    aboutMenuItem.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            aboutMenuItem_actionPerformed();
          }
        });
    helpMenu.add(aboutMenuItem);
  }