两个JButton可以有相同的鼠标点击事件function吗？

Question

I am developing a calculator in Java language. The problem is that, i put ten buttons for digits(0,1,2..9) and i want that when i clicked one of them, all perform the same mouse clicked function. Is it possible? In netbeans, it does not let me do that, or i couldnt achieve. Thank you for helping.

Answer 1

Yes. Add the same listener to both buttons you are using. For example, suppose you are using actionListener then:

public class ListenerClass implements Action{

     @override 
     public void actionPerformed(ActionEvent e) {
         //here retrieve information on which button has generated the event
     }
}

ListenerClass listener = new ListenerClass();
JButton first = new JButton(); 
JButton second = new JButton();
first.addActionListener(listener);
second.addActionListener(listener);