Small Application

Welcome. This is a user to user forum, not a blog. Biiiiiig difference. The "user to user" part means that everyone answering questions here is not in any way related to Oracle, they are just Java enthusiasts, just like you.
Let me guess, you are one of those people who believes they can learn by looking at someone else's code. You are very wrong, I can assure you. What you'll learn is how to copy/paste, not how stuff works. Especially in the case of the Java web platform,which is far from easy. I suggest you ask for advice and a good book the next time, I can even provide you a free one:

http://pdf.coreservlets.com/

Books just so happen to be crammed with examples, in between all that annoying text.


now for the advice part. Start with Servlets, just like the above book does. If you start with JSPs, you'll do it horribly wrong. A proper JSP has absolutely no Java code in it at all. To figure out how that works, read the above book! Good luck!