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.
There is no "invisible statement". There is indeed the implicit call to super() if the constructor doesn't start with a call to super(...) or this(...), but I've never heard that being called an "invisible statement".