java se7certificatin exam

Could you please tell me if the topics java input and output streams,jdbc driver and threads are also included for the exam and about the negative marking..

Since you are talking about the Java 7 exam, the objectives you mentioned are of course in the exam. Please take a look at the following PDF for a concise list of objectives applicable for each version of the exam:

http://www.examlab.org/lesson/about-ocpjp-exam-versions.pdf

I'm not sure what you meant by "negative marking", but I guess you are asking if there would be any penalty score for wrong answers? There won't be any penalty for wrong answers.