// Look at comment below. Am I right?

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

namespace Ch09Ex03
{
    class Program
    {
        class MyClass
        {
            public int val;
        }
        struct myStruct
        {
            public int val;
        }

        static void Main(string[] args)
        {
            MyClass objectA = new MyClass();
            MyClass objectB = objectA;
            objectA.val = 10; /*Both objectA.val and objectB.val actually point to the same variable. So they will output the newest value 20.*/
            objectB.val = 20;
            myStruct structA = new myStruct();
            myStruct structB = structA;
            structA.val = 30; /*structA.val and structB.val are actually two variables. So they will output two different values: 30 and 40*/
            structB.val = 40;
            Console.WriteLine("objectA.val = {0}", objectA.val);
            Console.WriteLine("objectB.val = {0}", objectB.val);
            Console.WriteLine("structA.val = {0}", structA.val);
            Console.WriteLine("structB.val = {0}", structB.val);
            Console.ReadKey();

        }
    }
}

U r right.
This is the good example of value type and reference type.

Bijgupt

Thank you, that's really an encouragement to me!