[1] http://www.energystar.gov/ia/home_improvement/HPwES_Utility_Intro_FactSheet.pdf. [2] http://www.homestarcoalition.org/about.html. [3] http://www.mckinsey.com/clientservice/electricpowernaturalgas/US_energy_efficiency/. There are no classes in ALL, ALL for WAP.
The biggest/largest integer that can be stored in a double without losing precision is the same as the largest possible value of a double. That is, DBL_MAX or approximately 1.8 Ã 10 308 (if your double is an IEEE 754 64-bit double). It's an integer. It's represented exactly.
Bytes in Java (as all primitive number types) are signed. The valid range of byte values is -128 to 127. Thus, there is no byte that has the same value as the integer 0xFF = 255, but you need a cast, which is what your compiler is warning you of. Note that 255 will actually become -1. Try the following code yourself: This should print true, true, false, true, true, true as indicated.