How do I make separate buttons do separate things?

Question

I have a button in a simple application I'm making which will increment a variable by one once pressed. This is it's code:

public class GUI implements ActionListener {
    int clicks = 0;
    int autoClickLevel = 0;
    JLabel label;
    JFrame frame;
    JPanel panel;

    public GUI() {
        JButton button = new JButton("Click me!");
        button.addActionListener(this);

        panel = new JPanel();
        panel.setBorder(BorderFactory.createEmptyBorder(60, 100, 30, 100));
        panel.setLayout(new GridLayout(0, 1));
        panel.add(button);

        frame.add(panel, BorderLayout.CENTER);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
    }
}

public static void main(String[] args) {
    new GUI();
}

@Override
public void actionPerformed(ActionEvent e) {
    clicks++;
}

I would like to know how to make a separate button (which I have already made, and it shows up; JButton button2 = new JButton("Click me too!");) which changes a separate variable. button2.addActionListener(this); [plus different ways of doing it,] instead increments the clicks variable instead of a separate clicks2 variable.

My code is a bit of a mess regarding this, and this second button's script doesn't work at all. I'm also fairly new to Java so I'm not much good at figuring out this either. What's a good way to make the second button increment the other variable?

Although, the answer below is apt for your question, but you can also use the below version with every button as with you current button also without even implementing `ActionListener`. You can also set every button same as you've done for current button and can distinguish which button is pressed by following [this answer](https://stackoverflow.com/a/12828267/8244632). It's all your choice which way you prefer. — Lalit Fauzdar, Jun 19 '20 at 09:20

score 5 · Accepted Answer · answered Jun 19 '20 at 09:04

5

Have different ActionListeners. You can do this like this:

button2.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
        // do something
    }
});

Or you could define the ActionListener as its own class.

answered Jun 19 '20 at 09:04

Thanks! Worked a charm. – toydotgame Jun 19 '20 at 23:00

How do I make separate buttons do separate things?

1 Answers1