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 think you can manage by... knowing the exact range in decimal for byte, short, char and int. long in exponential form: - 2to63 to 2to63 -1 for float and double only a general sense of the range: float 3.4e+38 to 1.4e-45 double 1.8e+308 to 4.9e-324