如何使用JButton ActionListener关闭程序？

Question

I have a button, and a buttonhandler(ActionEvent) for it. Now, I want to make it so that, when you click the button, your program shuts down. How would I go about doing this? My buttonhandler code:

class ButtonHandler implements ActionListener{
    public void actionPerformed( ActionEvent e){

    }
}

So I basicly need to shutdown the whole JFrame.

Answer 1

Your ButtonHandler would have a reference to the JFrame it's a member of and call JFrame.dispose();

class ButtonHandler implements ActionListener{
    final JFrame parent; 
    public ButtonHandler(JFrame p) { parent = p; }

    public void actionPerformed( ActionEvent e){
        parent.dispose();
    }
}

Answer 2

如果要关闭整个程序，则可以使用System.exit() 。