Sudarshana, if you're talking to people that way, do you expect them to help you ? It's been 40 minutes since your first post. Please be nice, and be patient. You should read this first : http://faq.javaranch.com/view?PatienceIsAVirtue
Hi Sudarshana, You may get one,two or many from each objective of the exam so read all the topics and be clear about the concepts. Each topic is important for the exam so dont leave any topics. All the best