can any one suggest me some materials?

for SCWCD study "head first Servlets and JSP"
and do some mock exams in the Internet.
all the best

i have taken scjp study material from hyperlessons, they helped me alot in my exams, there mock exams series are really very helpful. check on google for hyperlessons. they have authorized study material.

go through net, there are many online practice questions they will do the job