Java applet

                     Java Applet

 An applet is a program that runs in a Web browser. An applet can be a fully functional Java application because it has full Java API at its disposal.

                    Example

import java.applet.*;
import java.awt.*;
public class HelloWorldApplet extends Applet
{
public void paint (Graphics g)
{
g.drawString ("Hello World", 25, 50);//25 and 50 is height and width for applet window
}
}