using System;

public delegate T Registerdel<T>();//declaring the delecate

​

public class Register

{

    public static string Reg_Email()

    {

        Console.WriteLine();

        Console.WriteLine("Enter Your Email :");

        string mailId = Console.ReadLine();

        return "Your Registed mail id is :"+ mailId;

    }

    public static double Reg_Mobile()

    {

        Console.WriteLine();

        Console.WriteLine("Enter Your Mobile :");

        double mobile = Convert.ToDouble(Console.ReadLine());

        return  mobile;

    }

}

​

public class Program

{

    public static void Main()

    {

        Registerdel<string> rd = Register.Reg_Email;//creating instance for delegate

        Console.WriteLine(rd());//invoking the delegate by instance name

        Registerdel<double> rd1 = Register.Reg_Mobile;

        Console.WriteLine(rd1());

    }

}