JMenu addmenulistener

Question

我想用Jmenu作爲按鈕來改變框架中顯示的內容，但是當菜單被選中時，選擇不會被釋放。以下是Jmenu實例的代碼，它改變了兩個字段和標籤的位置。

mnAddUser.addMenuListener(new MenuListener() { 

      @Override 
      public void menuSelected(MenuEvent e) { 
       // TODO Auto-generated method stub 

       lblUserId.setBounds(150, 86, 111, 30); 
       userIDField.setBounds(273, 80, 268, 43);  

       lblUserName.setBounds(150, 165, 111, 30); 
       userNameField.setBounds(273, 159, 268, 43); 

       lblUserName.setVisible(true); 
       userNameField.setVisible(true); 

       btnAddUser.setBounds(187, 235, 150, 43); 
       btnReset.setBounds(390, 235, 150, 43); 

       btnAddUser.setText("Add User"); 
      } 

      @Override 
      public void menuDeselected(MenuEvent e) { 
       // TODO Auto-generated method stub 

      } 

      @Override 
      public void menuCanceled(MenuEvent e) { 
       // TODO Auto-generated method stub 

      }   

     }); 

Answer 1

• 也許有沒有理由使用JMenu added to JMenuBar and listening by MenuListener

• 簡單添加JButtons to the JMenuBar，也許用JButton.setFocusable(false);