JDO (Java Data Objects) is used to connect to any source (relational or non-relational) while Hibernate is used to connect to relational databases. TBD. You can access the objects as is described for POJOs above.
An example of this will be placed on the web site shortly. More.
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.