InputStream. Read is not guaranteed to read any particular number of bytes and may read less than you asked it to. It returns the actual number read so you can have a loop that keeps track of progress.
Your file length might be more than int can hold and than you end up having wrong array length, hence not reading entire file into the buffer.
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.