Hashset vs Treeset

Question

I\'ve always loved trees, that nice O(n*log(n)) and the tidiness of them. However, every software engineer I\'ve ever known has asked me pointedly why I would u

Answer 1

Message Edit ( complete rewrite ) When order does not matter, that's when. Both should give Log(n) - it would be of utility to see if either is over five percent faster than the other. HashSet can give O(1) testing in a loop should reveal whether it is.