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.
I can't help with the problem at hand, but I do know that "it is not working for me" is never a useful description of a problem. What were you doing, what did you expect to happen, and what did happen? TellTheDetails