Hello Mr. Rao,
what i suggest is, first you purchase a book on
java certification exam,
phillip heller and simon roberts book is better for exam, as most of us using this book as exam preparation guide. first you write some mock exams on net, as these are freely available. next see your score, if
1. you are getting more than 65 % then focus on weak areas and try to strenghten them.
2. you are getting less than 65 % practise java for quite some time at least one month and familiarize yourself with OO terminology.
keep trying on mock exams , so that you are going to know what are your strengths and weak areas...feel free to e-mail in case if you need any free help.
All the best for your perspective for Scjp 1.4
Ganesh..