I am planning to Take SCJP1.5,so can please help me regarding this? Which book i have to refer and how i have to prepare for the exam?
Welcome to Javaranch, there is one and only book that almost everyone would recommend, it is Kathy Sierra and Bert Bate's "Sun Certified Programmer for java 5 study guide". If you have already done some java programming and are aware of little object oriented concepts, this book alone will do. Dont forget to check out FAQ link in the signature below. Good luck.
Hello Sneha, Like everybody, I will also suggest you to go for K&B book. It is an excellent book, if you have some experience in Java. I recently cleared SCJP. Read the book atleast twice. Solve all the questions that are given in self test. When you are confident enough, go for mock exams availble on net. And always feel free to ask any(relevent) question on Javaranch. You will definitely find answer here in Javaranch.