Java Servlet & Applet

Hello,

Very new to Java, infact "Hello World" applet is pretty much my experience. Anyhow I want to create a Java Applet that can communcate with a SQL Server. The Java Applet will update it's displayed information when there is new info in the Database. Kind of like a Stock Ticker or Live Chat Program. What I'm asking is just some confirmation on if I'm thinking about this correctly..

here goes...

I create the Applet that a user will load using his web browser. Since an applet is very limited in the fact that it can't communicate with the SQL Server on a different machine because of security issues I have to create a Java Servlet. Soo the communication from applet to SQL server and back again goes as follows....

Applet --> Servlet --> SQL Server --\
|
Applet <-- Servlet <-- SQL Server<-/

At the moment I'm wading my way thru the java.sun.com tutorials.
Does anyone know of a good link or book that can give me step by step run thru on how to build a Chat program? I think if I can create that I can use most of it for what i really want to create.

Thank ya!

Have fun! :rolleyes: