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.
Right answer, wrong explanation; the reason is that statements cannot be put loose in the class. You ought to put those statements into a method. It is only the 3rd line the compiler will complain about because the 1st and 2nd lines are declarations, which are permitted loose in the class