how to add an action to a button in java

Source code for the button actionListener

myClass= code below

package myPackage;

import java.awt.Dimension;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

public class myClass extends JFrame {

   

  /*create JPanel*/

   JPanel panel = new JPanel();

   

   /*create JButton here*/ 

 JButton button =new JButton("Click me");

 public myClass(){

   setSize(400,600);

   setDefaultCloseOperation

   (JFrame.EXIT_ON_CLOSE);

     setVisible(true);

   setTitle("simple Button");

   add(panel);

   button.setPreferredSize(new Dimension(100,50));

   panel.add(button);

   /*add Action Listener*/

   button.addActionListener(new ActionListener(){

   

public void actionPerformed(ActionEvent e) {

  /*asign source in an object*/           

  Object source = e.getSource();

   /*add action*/

  if(source==button){

            

 /*print text to the console*/

System.out.println("i am clicked");

  }  

  }

       

       

   });

 } 

 

   

}

myMain = main class source code below

 package myPackage;

  public class  myMain  {

     

     

         public static void main(String[]args){

           myClass cl= new myClass();

         }

    }