Check if a tree is a binary search tree?

A Method should only do one thing at a time. Also the way you do things are generally Weird. I will give you some almost-Java pseudocode .

Sorry for that, but I have not touched Java for some Time. I hope it helps. Look at the comments I also did on the Question and I hope you sort it out!

Right, another simple solution is do an inorder visit.

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.