Delegates, C# - rextester

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//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.

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

namespace Rextester
{
    public class RpcCaller
    {
        public delegate void Callback(string result);
        
        public void ExecuteRpcAndCallbackWithResult(int param, Callback callback) 
        {
            Console.WriteLine("Calling RPC with {0}", param);
            var result = "success!";
            callback(result);
        }
    }
        
    public class Program
    {
        private static void ProcessResult(string result)
        {
            System.Console.WriteLine("Result is {0}", result);
        }
        
        private static void ProcessResultInADifferentWay(string result)
        {
            if (result == "success!") 
            {
                System.Console.WriteLine("It was a complete success.");
            }
            else
            {
                System.Console.WriteLine("It failed miserably.");
            }                
        }
        
        public static void Main(string[] args)
        {
            RpcCaller caller = new RpcCaller();
            caller.ExecuteRpcAndCallbackWithResult(7, ProcessResult);
            
            //caller.ExecuteRpcAndCallbackWithResult(8, ProcessResultInADifferentWay);
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0.11 sec, absolute running time: 0.08 sec, cpu time: 0.06 sec, average memory usage: 16 Mb, average nr of threads: 4