It's your final year project and you don't know the basics of getting started?
You may want to post this in paid offers, and ask for a tutor.
Go to Sun's Java website and get the latest java SDK. It comes with NetBeans IDE. You can either use that, or if you prefer, you can go download Eclipse as your IDE.
You've got one heck of a road lined with sleepless nights and coffee coming up if you don't even have tools to develop yet.