c# - Nullable<int> vs. int? - Is there any difference?

Question

Apparently Nullable<int> and int? are equivalent in value. Are there any reasons to choose one over the other?

Nullable<int> a = null;
int? b = null;
a == b; // this is true

Answer 1

No difference.

int? is just shorthand for Nullable<int>, which itself is shorthand for Nullable<Int32>.

Compiled code will be exactly the same whichever one you choose to use.