This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
kenny gill wrote:Well, of course they defer in that matter but to what detail do they differ?
I hate to say, but that question suggests that you need to read the Javatutorials, starting right at the very beginning.
This is not a criticism; simply that this forum can't teach you Java from the ground up. We're here to answer questions when you have a basic grasp of Java and have questions about something you've run into in your learning process.