Writing the Applet

Hello World Applet with the AWT

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

public class HelloWorld extends Applet {
   public void paint(Graphics g) {
      g.drawString("Hello world!", 50, 25);
   } // paint
} HelloWorld

Same thing in Swing

import javax.swing.*; 
import java.awt.*; 

public class HelloWorld extends JApplet { 
   public void paintComponent(Graphics g) {
      g.drawString("Hello world!", 50, 25);
   } // init
} // HelloWorld

Writing the Applet Tag

Applet tag for AWT applets and Netscape 7

<APPLET CODE = HiNoteApplet WIDTH = 550 HEIGHT = 550 >
</APPLET>

Using Swing in older browsers via the plugin

<OBJECT 
classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
WIDTH = 550 HEIGHT = 550
codebase="http://java.sun.com/products/plugin/1.2/jinstall-12-win32.cab#Version=1,2,0,0">
<PARAM NAME="code" VALUE = "HiNoteApplet">
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.2">

<COMMENT>
    <EMBED> 
    type="application/x-java-applet;version=1.2" 
    pluginspage="http://java.sun.com/products/plugin/1.2/plugin-install.html"
    WIDTH = 550 HEIGHT = 550   
    CODE = "HiNoteApplet" 
    java_CODE = "HiNoteApplet" 
    <NOEMBED>
</COMMENT>
    If you see this text, then the Java plug-in is not installed
    properly on this machine.  You can download the java plugin
    from <a href="http://java.sun.com/products/plugin/1.2/plugin-install.html">Sun</a>
    </NOEMBED></EMBED>
</OBJECT>

Sun has written an applet tag converter. It is already installed on both ITD and CAEN.

• on ITD type java HTMLConverter yer.html
• on CAEN type javahtmconv yer.html