button class example in java

                     button class example

import java.awt.*;

import java.applet.*;

import java.awt.event.*;

/*

<applet code="ButtonDemo3" height=200 width=200>

</applet>

*/

public class ButtonDemo3 extends Applet implements ActionListener

{

            Button b1,b2;

            Label msg;

public void init()

            {

                        msg=new Label("                                               ");          

                        add(msg);

                        b1=new Button("Show");

                        add(b1);

                        b1.addActionListener(this);

                        b2=new Button("Clear");

                        add(b2);

                        b2.addActionListener(this);

            }

public void actionPerformed(ActionEvent ae)

            {

                        String s=se.getActionCommand();

                        if(s.equals(“Show”))

                                    msg.setText("Welcome To JAVA WORLD");

                        else

                                    if(s.equals(“Clear”))

                                                msg.setText("");

            }