Web Development and Design Foundations with XHTML, 5th Edition

11.10 JavaScript^449

Free Java Applet Resources

Now that you are familiar with applets, you may be wondering how to write them. The

organization that developed the Java programming language, Sun Microsystems, offers

documentation and other resources on their Web site at http://java.sun.com. Be aware that

the Java programming language is very powerful, but quite complex. There are many

resources for free and commercial Java applets on the Web. Here are a few helpful sites:

● http://www.appletcollection.com

● http://www.javaonthebrain.com

● http://www.echoecho.com/freeapplets.htm

As you visit these and other Java resource sites, keep in mind that some Java applets are

copyrighted. Be sure to obtain permission from the creator of the applet before using it on

your site. There may be some requirements for giving credit to the creator either by name

or by linking to their Web site. Follow the instructions provided with the applet. Some

applets are free to use in personal Web sites but require licenses for commercial use.

FAQ

Why do we still use the <applet>tag if it is deprecated?

Although the applet tag is deprecated, it is better-supported in commonly used browsers than

the<object>tag. An example of using the <object>tag to display a Java applet is shown

below:

<object codetype="application/java" classid="fader26.class"

width="610" height="30">

<param name="AppletHome" value="http://www.crosswinds.net/fader/" />

<param name="Data" value="mymessage.txt" />

<param name="bgColor" value="#000000" />

</object>

CHECKPOINT 11.2

1. Describe two uses of Flash on Web pages.


2. Describe two uses of Java applets on Web pages.


3. Describe two disadvantages of using interactive technologies such as Flash and Java
   applets on Web pages.

11.10JavaScript

JavaScript is an object-based scripting language. In JavaScript you work with the objects

associated with a Web page document: the window, the document, and the elements such

as forms, images, and links. JavaScript, developed by Netscape, was originally called

LiveScript. When Netscape collaborated with Sun Microsystems on modifications to the

language, it was renamed JavaScript. JavaScript is not the same as the Java programming

language. Unlike Java, JavaScript cannot be used to write stand-alone programs that can