This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
I have purchased an exam voucher for SCDJWS. My confusion is, there is nothing about exam code on the voucher. When I gave SCJP exam, at that time I found on voucher that "This voucher is for all exam start with 310". How can I know I have a right voucher?