Java applet illustration

You may place a Java applet wherever you want it to appear on the page. When the page loads, the applet program and any data it uses are automatically downloaded from the server to your client. In this example, an image-viewing program and several images are downloaded. (Click on the mosaic button to see some old class photos).

If you view the source of this page, you will see the following HTML where the applet appears:

The applet tag designates the program to be downloaded to the client. The tag has four attributes:

Archive: a zipped file on the server that contains the classes (subprograms) that make up the applet.
Code: since there are several classes, the code attribute tells which one to execute first.
Width and height: the size of the window that will contain the applet while it executes.

The applet is contained in a zipped file called viewer.zip. As you see in this listing, viewer.zip contains a number of subprogram classes and one .gif file:

The classes are the subprograms making up the applet, and the gif file is the "Java applet illustration" greeting that is displayed when the program first executes. As specified in the code attribute, the first subprogram to execute will be an instance of the class ImageViewerApplet which is in the viewer subdirectory.

The param tags specify the values of the two parameters that are passed to the applet when it executes:

The value of the parameter named ImageList specifies the names of the files to be displayed separated by commas. (The files must either be jpeg or gif, and they must all be located in a directory called images that is a subdirectory of the one containing the applet).
The value of the parameter named bgColor specifies the color of the applet window. (It is white, #ffffff, in this example).

I downloaded the applet and instructions for using it from BuddySoft.

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