Add functionality to a menu button in java

Question

I am new to Java and I was wondering how to add functionality to menu item?
What I would like it to do, is to set two values to 0.

This is the code I have currently:

JMenuItem clear = new JMenuItem("Clear");
Options.add(clear);

Answer 1

You will need to add an ActionListener. This is an interface which must implement a method called actionPerformed.

E.g

clear.addActionListener(new ActionListener() {
    @Override
    public void actionPerformed(ActionEvent actionEvent) {
      // Clear two values.
    }
});`

This will add an anonymous ActionListener that is invoked once the JMenuItem is clicked.

Hope that helps.