Question

How to convert class to interface in C#

Answer 1

using System;

interface INFC {
    void Show();
}

class Test : INFC {
    public void Show() {
        Console.WriteLine("Show()");
    }
}

class Program
{
    static void Main()
    {
        Test t = new Test();
        t.Show();

        INFC iface = t as INFC;
        if (iface != null) {
            iface.Show();
        }
    }
}



/*
run:

Show()
Show()

*/

 

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