After passing the exam you will get a certificate that will certify that you are a good
java programmer. And it will always show up a good impression on others when you write it in your resume that you are a certified java programmer. It might be helpful in getting increment/promotion
.
You will know many technical stuff while preparing the exam. Wish you luck.
By the way. This is a
servlet forum and not appropriate for asking certification question/querys. We have a
SCJP forum here, luckily.