See my question on exacty the same topic. In the end we bought a commercial BTree imeplementation and extended it to work across multiple record stores.
Well, RMS only allows you to store records that are arrays of bytes. You will have to decide for yourself how a record is stored, and if you want to store your data in a single or in multiple records. If you use the DataInputStream and DataOutputStream classes, you'll be able to read/write Strings, booleans, integers, etc. The API documentation includes a decent example of how you can do this.
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.