why string overloaded method is called over a object overlodaded method when the parameter is null

Asked Dec 05 '18 at 07:27

Active Dec 05 '18 at 07:34

Viewed 64 times

Here is sample code as mentioned below

class Program
{
    static void Main(string[] args)
    {
        Program prgm = new Program();
        string sprgm = prgm.OverloadedMethod(null);
        Console.ReadKey();
    }

    private string OverloadedMethod(object arg)
    {
        return "object as parameter";
    }

    private string OverloadedMethod(string arg)
    {
        return "string as parameter ";
    }
}

when i pass null as parameter. it is the acceptable value for both string overloaded menthod and object overloaded method but why string overloaded method is called?

edited Dec 05 '18 at 07:30

FCin

3,804
4
20
49

asked Dec 05 '18 at 07:27

Aravind Goud

1

Nice detailed discussion here : https://stackoverflow.com/questions/719546/c-passing-null-to-overloaded-method-which-method-is-called – Muhammad Saqlain Dec 05 '18 at 07:32
thanks a lot i will check out the link – Aravind Goud Dec 05 '18 at 07:33
1

Another [duplicate](https://stackoverflow.com/questions/5173339/how-does-the-method-overload-resolution-system-decide-which-method-to-call-when). – ProgrammingLlama Dec 05 '18 at 07:33
he has arg different so compiles ok – jazb Dec 05 '18 at 07:33
@John indeed, your dup is even better. Added it. – MakePeaceGreatAgain Dec 05 '18 at 07:35

why string overloaded method is called over a object overlodaded method when the parameter is null

0 Answers0