Question

Below code gives the output as “abc”.

Please can someone explain why its not printing “d”

public class a
{
    public void m1(a obj)
    {
        Console.WriteLine("a");
    }
}

public class b :a
{
    public void m1(b obj)
    {
        Console.WriteLine("b");
    }
}

public class c: b
{
    public void m1(c obj)
    {
        Console.WriteLine("c");
    }
}

public class d: c
{
    public void m1(d obj)
    {
        Console.WriteLine("d");
    }
}

class MainRunning
{
    static void Main(string[] args)
    {
        a a1 = new a();
        b b1 = new b();
        c c1 = new c();
        d d1 = new d();

        d1.m1(a1);
        d1.m1(b1);
        d1.m1(c1);

        Console.ReadLine();
    }
}

Answer 1

You have 4 methods with the same name but different argument lists. You call three of them, but not the fourth.