This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
core javaserverfaces second edition by David geary and cay horstmann is enough to get sufficient.
Areawiseyou can check API's by SUN. the certification preparation not for exam purpose only it's for knowing each and every area in Technology .