Hi travis thompson,
I need to obtain this cert within 6 months.
Do you have Java
working experience ? or Do you know Java basics ??. If you say Yes for any one of those questions , No need to spent 6 months time for OCAJP
exam . Because it just covers Java language basics in depth. Yo need to get Clear understanding about all exam objectives which are mentioned in OCAJP 7/8 . You didn'nt mention which exam you are taking. No OCAJP requires 6 months.
Even you are beginner two and half months or two months time is enough. I can give you few suggestions.
1. When you complete each chapter , note down important points even the book contains summary points.
2. Do not take any test till you get clear understanding.
3. Revise the concepts multiple times.
4. Analyse each concept practically.
Hope it helps !