C#_delegate - example

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Delegate
{
    public delegate void Task();

    class Program
    {

        static void Main(string[] args)
        {
            Task[] task = { MethodA, MethodB, MethodC};
            string resp;
            do
            {

                Console.WriteLine("Task-A");
                Console.WriteLine("Task-B");
                Console.WriteLine("Task-C");
                Console.WriteLine("X exit");
                resp = Console.ReadLine();
                if (resp.ToUpper() == "X")
                {
                    break;
                }
                try
                {
                    int choice = int.Parse(resp) - 1;
                    task[choice]();
                }
                catch {
                    Console.WriteLine("Invalid number");
                }
            } while (true);

            Console.ReadLine();

        }

        public static void MethodA() {
            Console.WriteLine("A doing");
        }
        public static void MethodB()
        {
            Console.WriteLine("B doing");
        }
        public static void MethodC()
        {
            Console.WriteLine("C doing");
        }
    }
}