anonymous methods

For delegates, it is mandatory to have a method pre-defined to be used with delegate.

Anonymous methods allow us to define method and delegate in same code without requiring a separate method for delegate. Here is an example:

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

namespace ConsoleApplication10
{
    class Program
    {
        static void Main(string[] args)
        {
            Func<double> anonMethod1 = delegate ()
            {
                return 4.5;
            };

            Func<string> anonMethod2 = delegate ()
            {
                return " DEF ";
            };

            Func<string, string> anonMethod3 = delegate (string param)
            {
                return param + " ABC ";
            };

            Func<int, double, string, string> anonMethod4 = delegate (int a, double b, string c)
            {
                return a.ToString() + " " + b.ToString() + " " + c;
            };


            Console.WriteLine(anonMethod1());
            Console.WriteLine(anonMethod2());
            Console.WriteLine(anonMethod3("PAK"));
            Console.WriteLine(anonMethod4(10,20.5,"PQR"));
        }
        
    }
}