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.
Paulo, may I suggest you do some reading first? You said in another thread you recently started Java after using Delphi before that, so you probably understand the basics but not the syntax and Java specifics.