添加一個新的WindowListener到JFrame

mainFrame.addWindowListener(new WindowListener() { 

     @Override 
     public void windowClosing(WindowEvent e) { 
      if (JOptionPane.showConfirmDialog(mainFrame, "Are you sure you want to quit?", "Confirm exit.", JOptionPane.OK_OPTION, 0, new ImageIcon("")) != 0) { 
       return; 
      } 
      System.exit(-1); 
     } 

     @Override 
     public void windowOpened(WindowEvent e) {} 

     @Override 
     public void windowClosed(WindowEvent e) {} 

     @Override 
     public void windowIconified(WindowEvent e) {} 

     @Override 
     public void windowDeiconified(WindowEvent e) {} 

     @Override 
     public void windowActivated(WindowEvent e) {} 

     @Override 
     public void windowDeactivated(WindowEvent e) {} 

    });

有我的代碼，是否有可能，因爲我只使用windowClosing方法在我的情況下刪除所有其他的，無用的方法，所以它佔用更少的空間？添加一個新的WindowListener到JFrame

例

mainFrame.addWindowListener(new WindowListener() { 

     @Override 
     public void windowClosing(WindowEvent e) { 
      if (JOptionPane.showConfirmDialog(mainFrame, "Are you sure you want to quit?", "Confirm exit.", JOptionPane.OK_OPTION, 0, new ImageIcon("")) != 0) { 
       return; 
      } 
      System.exit(-1); 
     } 

    });

這可能嗎？

來源

2012-11-03 Jonathan Beaudoin

你'showConfirmDialog'方法的參數太多 –

有一個叫WindowAdapter的WindowListener一個默認的實現，它允許你重寫你真的想用

來源

2012-11-03 08:46:30 MadProgrammer

感謝很多的方法！真的有幫助！ –

對於其他監聽器，例如'MouseListener' /'MouseAdapter'，'MouseMotionListener' /'MouseMotionAdapter'，'KeyListener' /'KeyAdapter'等，也是如此。 –

添加一個新的WindowListener到JFrame

回答

相關問題