Question

Let us suppose i have these three methods defined:

int F1(int, int);
int F1(float, float);
Float F1(int, int);

and i am calling method F1 here:

Console.writeline(F1(5,6).ToString()));

Which method it will call and why?

Answer 1

The first and third function will not compile in the same namespace.

This is because function signatures are differentiated by type and number of parameters, and these are the same. Return types are not considered as part of the method signature.

If you only had the first and second (or second and third) in the name space, the most appropriate one would be called (the one with integer types passed in, as you are passing in integers).

Eric Lippert has some great blog entries about the subtleties of C#.