Applet Restrictions 

• Since applets can execute within a web browser session, they are normally restricted in what they can do. Here are some of the basic applet restrictions: 
• An applet can't write directly to files on the client computer 
• An applet can't communicate with machines other than the one hosting the applet 
• An applet can't call native system code
• These are the restrictions applets operate under by default. There are ways to grant permission to applets so that they can perform the above tasks, however, if you are creating a normal applet, you will probably be restricted in what you can do. 

Additional Resources:

• Learning to Write Java 
• Introducing Java (TM) - Your First Applet 
• Java FAQs 
• Java Software 
• java.sun.com 
• Sun Microsystems

Using the Applet Viewer
Table of Contents
Distributing Applets