Java implements ActionListener Problem

Question

In relation to my previous problem, I now have a new problem. In order to avoid the inner class, my class now implements an actionListener. My code is as follows:

public class MainGame extends JDialog implements ActionListener {

    public MainGame(JDialog owner) {
        super(owner, true);
        initComponents();
        jPanel1.setLayout(new GridLayout(3, 9, 3, 5));
        for (char buttonChar = 'a'; buttonChar <= 'z'; buttonChar++) {
            String buttonText = String.valueOf(buttonChar);
            letterButton = new JButton(buttonText);
            letterButton.addActionListener(this);
            jPanel1.add(letterButton);
        }

        newGame();
    }

    public void actionPerformed (ActionEvent action){
        if (action.getSource() == letterButton) {
            letterButton.setEnabled(false);
        }
    }

How can I effect the listener to my buttons A to Z? Because all it can listen to is the last button which in this case is button Z.

Thank you.

Answer 1

You listener can listen to events from all buttons just fine. Your problem is that you seem to believe that you can only manipulate class fields. In fact, you don't need the letterButton field at all for what you're trying to do:

public void actionPerformed (ActionEvent action){
    ((JButton)action.getSource()).setEnabled(false);
}