將新的WindowListener添加到JFrame

Question

    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，是否可能，因為我只使用windowClosing方法刪除我的情況下的所有其他方法，無用的方法，所以它占用更少的空間？

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);
        }

    });

可能嗎？

Answer 1

WindowListener的默認實現名為WindowAdapter ，它允許您覆蓋您真正想要使用的方法