JOptionPane example

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

public class Right extends JFrame
{
JFrame frame;
JButton button;
Right()
{
frame=new JFrame();
button=new JButton("click");
button.setBounds(130,100,100,40);
add(button);
setTitle("java");
setSize(400,400);
setLayout(null);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);

button.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
JOptionPane.showMessageDialog(button,"Naveen");
}
});

}
public static void main(String args[])
{
Right rt=new Right();
}
}