JButton with actionPerformed and keyReleased

Question

I have a JButton, I want it to do something when the button is pressed and I want it to do the same thing when a key is pressed, how do I do that?

Answer 1

To do something when a button is pressed you should add an ActionListener to that button like this:

JButton button = new JButton();
button.addActionListener(new ActionListener() {

    @Override
    public void actionPerformed(ActionEvent arg0) {
        // TODO Auto-generated method stub

    }
});

And to response to key pressed do something like this : (for example if user enters control alt 7)

Action actionListener = new AbstractAction() {
  public void actionPerformed(ActionEvent actionEvent) {
    JButton source = (JButton) actionEvent.getSource();
    System.out.println("Activated: " + source.getText());// just for test
  }
};
//.....

KeyStroke controlAlt7 = KeyStroke.getKeyStroke("control alt 7");
InputMap inputMap = button.getInputMap();
inputMap.put(controlAlt7, ACTION_KEY);
ActionMap actionMap = button.getActionMap();
actionMap.put(ACTION_KEY, actionListener);