Calleree01

namespace CalleeNs
{
    public class Callee {


        public Callee(string FromTheCaller) {
            System.Console.WriteLine("[{0}]", FromTheCaller);
        }
    }
}

using System;
using CalleeNs;

namespace CallerNs
{
    public class Program
    {
        public void Main(string[] args)
        {
            var callee = new Callee("If thisx is displayed then I have found the callee");
            Console.WriteLine("[In the Caller: as simple as it gets]");
        }
    }
}