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system("PAUSE");

Visual C++.NET support C++ better than VC6.0.

If you program in windows, I think you never leave the "MFC"

Dev-C++ is very good

Oh, I can't stand my poor English :(

If you have few experience in programming, i advice you to learn C++ first. recommend "C++ Primer"!!!
then you can learn "Programming Windows" by Petzold
next "MFC"

private member will prevent dataStructure from being used outside of yourClass