create hot keys for JButton in java using swing

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You need to register a keyBinding in the button’s component inputmap. In code (repeating a subtle variant of what you have been told to do in your previous questions 🙂

// create an Action doing what you want
Action action = new AbstractAction("doSomething") {

    @Override
    public void actionPerformed(ActionEvent e) {
        System.out.println("triggered the action");
    }

};
// configure the Action with the accelerator (aka: short cut)
action.putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke("control S"));

// create a button, configured with the Action
JButton toolBarButton = new JButton(action);
// manually register the accelerator in the button's component input map
toolBarButton.getActionMap().put("myAction", action);
toolBarButton.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(
        (KeyStroke) action.getValue(Action.ACCELERATOR_KEY), "myAction");

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