C++

http://www.mindview.net/Books/TICPP/ThinkingInCPP2e.html can get free c plus plus books in electronic form. But I would start with the Wikipedia site http://en.m.wikipedia.org/wiki/C%2B%2B11 for an overview and external links.

Oh I found this a little while ago, if you have Visual Studio you might check this out: https://www.unrealengine.com/blog/introduction-to-c if you cannot affor ms studio and are stuck on a PC download cygwin (cygwin.org) in the installer make sure to install the X-Windows and then get this: http://www.jetbrains.com/clion/ it will also work on a mac and linux system.