You need to compile the java application first, using "ant compile", so the java classes will be created and javah can export the java header file.
I had the same trouble earlier, but this solved it: javah -classpath wherever you compiled HelloWorld -o HelloWorld. H example.jni.HelloWorld.
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.