using System;

delegate string MethodDelegate(string z);  // (A)

class ClassDelegate

{

    static string sentence = "Mozart is "; // (B)

​

    public static string Method1(string x)

    {  // (C)

        sentence = "Mozart is " + x;

        return sentence;

    }

    public static string Method2(string y)

    {  // (D)

        sentence = "Salieri is " + y;

        return sentence;

    }

    public static string getSentence()

    {  // (E)

        return sentence;

    }

    static void Main(string[] args)

    {

        MethodDelegate obj;               // (F)

        MethodDelegate obj1 = new MethodDelegate(Method1);  // (G)

        MethodDelegate obj2 = new MethodDelegate(Method2);

​

        obj = obj1; // "Mozart is "  // (H)

        obj("the best!");            // (I)

        Console.WriteLine(">>> " + getSentence());

​

        obj = obj2; // "Salieri is " // (L)

        obj("also great.");          // (M)

        Console.WriteLine(">>> " + getSentence());

    }

}