Java Search Engine

I'm taking a graduate course in databases. We have to write a program that uses a set of predefined topics and automatically downloads news items related to these topics. The engine will have to scan the web daily and download the appropriate news items. The daily downloads should get only new articles (the same news article should not be down loaded repeatedly)

My professor only gave us the weekend to do this. Does anyone have any ideas, websites, code examples that I can refer to in order to get this completed.

There is an "XML News" sample program available from the Oracle Corporation's "Technet" site:

http://technet.oracle.com

Hope this helps you.

Good Luck,
Avi.