Java JMenuItem.isSelected示例

  /** Called when a choice was made in the additional display combo box. */
  public void additionalDisplayCombo_actionPerformed() {
    int selectedIndex = additionalDisplayCombo.getSelectedIndex();
    switch (selectedIndex) {
      case HackController.SCRIPT_ADDITIONAL_DISPLAY:
        if (!scriptMenuItem.isSelected()) scriptMenuItem.setSelected(true);
        break;

      case HackController.OUTPUT_ADDITIONAL_DISPLAY:
        if (!outputMenuItem.isSelected()) outputMenuItem.setSelected(true);
        break;

      case HackController.COMPARISON_ADDITIONAL_DISPLAY:
        if (!compareMenuItem.isSelected()) compareMenuItem.setSelected(true);
        break;

      case HackController.NO_ADDITIONAL_DISPLAY:
        if (!noAdditionalDisplayMenuItem.isSelected())
          noAdditionalDisplayMenuItem.setSelected(true);
        break;
    }

    notifyControllerListeners(
        ControllerEvent.ADDITIONAL_DISPLAY_CHANGE, new Integer(selectedIndex));
  }