using System;

class Emp

    {

        public int ID { get; set; }

        public string Name { get; set; }

    }

​

public class Program

{

    public static void Main()

    {

        int a=10;            

            int b = a; //copy the value or data and create new 

            Console.WriteLine(" A : {0} \n B : {1}",a,b);

            a = 50;

            Console.WriteLine("\n\n A : {0} \n B : {1}",a,b);

​

            //Ref Type

            Emp e1 = new Emp() { ID = 101, Name = "abc" };

​

            Emp e2 = e1;

            // copy the address or referance of data  OR

            //create new referance for same data

            Console.WriteLine("E1  =  ID : {0} \t Name : {1}",e1.ID,e1.Name);

            Console.WriteLine("E2  =  ID : {0} \t Name : {1}\n",e2.ID,e2.Name);

            e1.ID = 506;

            e1.Name = "xyz";

​

            Console.WriteLine("E1  =  ID : {0} \t Name : {1}",e1.ID,e1.Name);

            Console.WriteLine("E2  =  ID : {0} \t Name : {1}\n\n\n",e2.ID,e2.Name);

​

​

            Console.ReadLine();

​

    }

}