A Java program that has two buttons, each of which prints a message “I was clicked n time!” whenever the button is clicked. Each button has a separate click count.

ButtonViewer.java

//ButtonViewer.java - Jimmy Kurian

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class ButtonViewer
{
   private static final int FRAME_WIDTH = 100;
   private static final int FRAME_HEIGHT = 100;

   public static void main(String[] args)
   {
      JFrame frame = new JFrame();
      JPanel panel = new JPanel();

      JButton button1 = new JButton("Click me!");
      panel.add(button1);
      JButton button2 = new JButton("Click me!");
      panel.add(button2);
      frame.add(panel);

      ActionListener listener = new ClickListener();
      button1.addActionListener(listener);
      ActionListener listener2 = new ClickListener();
      button2.addActionListener(listener2);



      frame.setSize(FRAME_WIDTH, FRAME_HEIGHT);
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setVisible(true);
   }
}

ClickListener.java

//ClickListener.java - Jimmy Kurian

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

public class ClickListener implements ActionListener
{
	private int numClicks = 0;

	public void actionPerformed(ActionEvent event)
	{
		numClicks++;
		System.out.println("I was clicked " + numClicks + " times.");
	}
}