Method to add ActionListener
actionlistener, java, swing
Solution
In the second case, you have to implement the `ActionListener` interface. Other than that, the answer is "it depends". If it makes sense to reuse the same action listener for several graphical components, then use the second version. If handling the event is a one-shot affair for a single component, then use the first version.
Problem
Let's say I have a button called button1. If I want to create an actionListener for the button which method should I choose: (In the second one, you have to extend actionListener interface) ``` // Imports public class Test{ JButton test = new JButton(); Test(){ // Pretend there is an adapter test.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e){ ... } }); ... } ``` or ``` // Imports public class Test2 extends ActionListener{ JButton button2 = new JButton(); Test2(){ button2.addActionListener(this); } // Pretend there is an adapter public void actionPerformed(ActionEvent e){ Object src = e.getSource(); if(src == button2){ ... }else{ ... } } ```