The real types in Java are implementations of IEEE754 single and double precision floating point notation . These are approximations of real numbers rather than exact representations. Some real numbers like 0.8 cannot be represented accurately.
As said Vincent the float and double types cannot store values that will not be represented as the sum of 2^-n values (n size depends on the implementation).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.