DO i need to give OCAJP 8 before giving OCPJP 8(I cleared scjp 1.4)

I have cleared scjp 1.4 so do i need to give OCAJP 8 before appearing for OCPJP 8?

also suggest me which is better to go OCPJP 7 or OCPJP8?

waiting for your reply.

You can either do OCAJP 8 and then OCPJP 8; or just sit the OCPJP 8 Upgrade exam.

Between OCPJP 7 and OCPJP 8, the version-8 is generally better because it covers the new stuff of Java 8.

Please refer this PDF to decide which version to go for:

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