Tomcat hosts web applications. If you want to run Java apps in a browser, you would need to deploy them as applets.
If your Java class is an applet, you'll need to place it in a diretory that can be seen by browsers. The WEB-INF directory and it's subdirectories can not be accessed from a web client. It is for server side java classes only. [ February 28, 2006: Message edited by: Ben Souther ]