How to create applets

This article explains how to write a small applet.Before we are going to write applets we must ensure the following are available in local system.

Requirements to build and run an applet

Steps involved in creating and testing an applet 

  • write the applet program in your local system using any editor.
  • Create an executable java class (In this case applet).
  • Create a web page in HTML.
  • Prepare the applet tags in HTML page.
  • Note the URL of applet in local system.
  • Embed the applet in HTML page using <APPLET>tags.
  • Test the applet using Java Enabled Browser.

Creating and testing an applet 

Now we are going to create and test a sample applet.
  • Create a java applet code file using the following code (MyApplet.java)

package friends;


import java.applet.Applet;
import java.awt.Graphics;

public class MyApplet extends Applet
{
/**
*/
private static final long serialVersionUID = 1L;

public void paint(Graphics g)
{
g.drawString("Hello Friend I am your Applet ", 10, 20);
g.fillRect(10,25, 150, 160);
}
}

  • Compile the program using following command.
C:/>Javac MyApplet.java
  • Now your applet class is ready
  • You can check your applet using appletviewer tool using the following command
    C:/>appletviewer MyApplet
    • The output will be as follows
    If you get the above out put, your applet class is ready.
    • Now , embed your applet into HTML page.Create an HTML page with following code.
    <Html>
    <Head>
    <Title>MyApplet test</Title>
    </Head>

    <Body>
    This is my page<br>
    You can find applet<br>
    <br>
    <Applet Code="MyApplet.class" width=200 Height=100>
    </Applet>
    </Body>
    </Html> 

    Make sure that applet class is in the same folder of HTML page.Open the HTML page using any browser.you will get the following output.

    Happy surfing...............

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