You can start by first choosing an API for Bluetooth like Bluecove etc. Google the available APIs that support java and you can choose any one you find better for you. I have personally worked on Bluecove. But I have never created an Adhoc network.
I think you need to create a PAN (personal area network) via bluetooth. Please elaborate how you want to use your ad-hoc network so can tell you something more about it.
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.