[Deque]

Hello @"jlobo89". We have made a programming language FAQ for such questions. Read it up and come back if there are questions left. Here it is: http://www.hackcommunity.com/Thread-Prog...sing-guide

I edited your title to remove the redundant question mark.
As Terry Pratchet put it:

Multiple exclamation marks', he went on, shaking his head, ‚are a sure sign of a diseased mind.

That is true for question marks too.