Introduction to Applets

Introduction to Applets

v  An applet is a special program that you can embed in a web page such that the applet gains control over a certain part of the displayed page.

v  Applet differs from application programs. Like applications, applets are created from classes.

v  However, applets do not have a main method as an entry point, but instead have several methods to control specific aspects of applet execution

simple hello world applet

Compiling JAVA Applet

This applet consists of two import statements.

               1.      The first import the abstract windowing tool kit class. Because applet programs are GUI based not console based.

               2.      The second import statement here is Applet class. Every applet that you can create must be a sub class of Applet.

        3.    The paint method is called to display the output. It has one parameter of type Graphics.

                                

                                   Syntax: drawString(String s1, int x, int y);