I'm a newbie to JAVA and would like to build a client server app. The server should be internally built for security. Also, the app shouldn't use a separate database server. Instead, it should use Berkeley DB and SQLite to interact with tables over the network. I don't even know from where to start building my app, what kind of servers should I use and how to deal with database in the network. If there is a book, tutorial or article or anything that helps and cover those stuff, please post it here.