How to use an inner ActionListener class

by Eric K · Published April 3, 2017 · Updated April 3, 2017

inner ActionListener classThis tutorial will teach you how to use an inner ActionListener class to perform actionPerformed method on JButtons.Check out below articles related to this one.

inner ActionListener class Example

/**
 *
 * @author Eric Mutua
 * Blog.www.techoverload.net
 */
import javax.swing.JButton;
import javax.swing.JFrame;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;


public class JavaInnerClass extends JFrame {
    public JButton b1,b2;
    
    //Inner class code
    class ButtonListener implements ActionListener
    {
        public void actionPerformed(ActionEvent evt)
        {
        if(evt.getSource()==b1)
        {
        System.out.println("You clicked Button 1");
        }
        else if(evt.getSource()==b2)
            System.out.println("You clicked Button 2");
             
        }}
    //end of inner class
    
        JavaInnerClass()
        {
        super("Java Class Example");
        b1=new JButton("Button 1");
        b2=new JButton("Button 2");
        b1.setBounds(10, 10, 100, 30);
        b2.setBounds(120,10, 100, 30);
        add(b1);
        add(b2);
        b1.addActionListener(new ButtonListener());
        b2.addActionListener(new ButtonListener());
        setSize(300,300);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
        setLayout(null);
        setVisible(true);
        
        }
        public static void main(String args[])
        {
        new JavaInnerClass();
        }
    
    }

Output: