Originally posted by Amitkumar Dhama: can anybody tell me the exact def for debugging and a bug?
There are good definitions at www.wikipedia.org and www.foldoc.org . Those should be enough for you. If, having looked at those, you have some specific questions, I'm sure people here will try to help ...
... unless what you're doing is trying to get someone to do your homework for you. Hopefully, no-one will help you with that.
Betty Rubble? Well, I would go with Betty... but I'd be thinking of Wilma.