如何在同一方法中添加KeyPressed事件

Question

I have a problem with this code:

 CaptachaKey.addKeyListener(new KeyAdapter()
    {
        public void KeyPressed(KeyEvent e)
        {
            System.out.println("It works!" + e.getKeyCode());
            if (e.getKeyCode() == 10)
            {
                text = CaptachaKey.getText();
                f.setVisible(false);

            }
        }
    });

It doesn't work... How can I add this listener in the same class?

Answer 1

Instead of using KeyListener use KeyBindings , for example for code 10:

  getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke("ENTER"), "doSomething");
  getActionMap().put("doSomething",new AbstractAction() {

        @Override
        public void actionPerformed(ActionEvent arg0) {
            System.out.println("profit");
        }
    });

According to your code :

CaptachaKey.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke("ENTER"), "doSomething");
CaptachaKey.getActionMap().put("doSomething",new AbstractAction() {

        @Override
        public void actionPerformed(ActionEvent arg0) {
            text = CaptachaKey.getText();
            f.setVisible(false);
        }
    });

And when you press ENTER key, your code will be executed.