Hello-
On your way in you may have missed that we have a
policy on screen names here at JavaRanch. Basically, it must consist of a first name, a space, and a last name, and not be obviously fictitious. Since yours does not conform with it, please take a moment to change it, which you can do
right here.
As to your question, there are many Sun Java certifications. The
Sun Java certification home page may be a good start for some research, as may be the
FAQ pages we have at the 'Ranch for individual certifications.