如何使用/覆盖 readObject 方法，以便在 actionPerformed 方法中调用它？ [关闭]

Question

有没有办法在 actionPerformed 中调用被覆盖的 readObject 方法？由于它不能被显式调用，有没有办法做到这一点？这就是我想要做的：-

 class ContinueActionListener implements ActionListener{

    @Override
    public void actionPerformed(ActionEvent e) {


        try {
            FileInputStream input = new FileInputStream("Dpuzzle.sre");
            ObjectInputStream fileInObject = new ObjectInputStream(input);
            //GridGame game = (GridGame)(fileInObject.readObject());  i dont want to call readObject but instead i want to override it.
            //fileInObject.close();
            //StageSelect stages = new StageSelect();
            //stages.setTheGame(game);
            //stages.setVisible(true);
        } catch (Exception exp) {
            //no game to continue or file lost.
            System.out.println("hell");
        }
    }


}  

那么我怎样才能覆盖readObject 方法，以便从actionPerformed 方法内部调用它？

Answer 1

你可以像这样覆盖它：

public static void main(String[] args) throws IOException, ClassNotFoundException{      
    ObjectInputStream fileInObject = new ObjectInputStream(){
        @Override
        protected Object readObjectOverride() throws IOException,
                ClassNotFoundException {
            System.out.println("HELLO");

            return null;
        }
    };      
    fileInObject.readObject();
}

输出：你好

您不能直接覆盖 readObject 它的最终方法。