What is the point of having this?

[viclubsmau4eva]

I have seen classes in c++ but my book puts this in their classes code

template <class Type> // What does this mean?
struct nodeType
{
Type info;
nodeType<Type> * next;
nodeType<Type> *back;
};

I would usually this the struct or classes code on programs but with out that so what does that mean?

[Zhuge]

Try checking this out:
http://cplusplus.com/doc/tutorial/templates/