webcrawler in java or with j2ee as my final year project is good?How can I improve searchengine via webcrawler? What are the other features the best crawler have? -

This is for my last year's project. I want to design a web crawler, which crawls the pages I set for the given URL. I want to know how can I improve searchengine through WebWorld? I chose Java as my developing language. Is that good? What are the other features of webcrawlers? How can it help us in other ways? What are some other applications other than Search?

If your web crawler has not been delivered, it is not a web crawler.