向JFrame添加新WindowListener

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) {}

    });

这是我的代码，有没有可能，因为我只使用windowClosing方法来删除所有其他的方法，无用的方法，以便它占用更少的空间？

示例

    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);
        }

    });

有可能吗？

Answer 1

WindowListener有一个名为WindowAdapter的缺省实现，它允许您覆盖真正想要使用的方法