Myth Buster ReferenceEquals == Equals()

Introduction

ReferenceEquals and Equals and == are pretty much does the same thing.

• It compares the object reference to SAME instance.
• Even if the object reference is of the same type and have same value it returns false.

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
      
            var c1 = new Car(1, "Matiz");
            var c2 = new Car(1, "Matiz");
           
            //COMPARES OBJECT REFERENCES OF DIFFERENT INSTANCES OF SAME TYPE
            Console.WriteLine(c1.Equals(c2));//false
            Console.WriteLine(ReferenceEquals(c1, c2));//false
            Console.WriteLine(c1 == c2);//false
        
            var c3 = c2;
            //COMPARES OBJECT REFERENCES OF SAME INSTANCES OF SAME TYPE
            Console.WriteLine(c3.Equals(c2));//true
            Console.WriteLine(ReferenceEquals(c3, c2));//true
            Console.WriteLine(c3 == c2);//true

            Console.Read();
        }

        private class Car
        {
            private readonly int _id;
            private readonly string _name;

            public Car(int id, string name)
            {
                _id = id;
                _name = name;
            }
        }
    }
}

http://geekswithblogs.net/BlackRabbitCoder/archive/2011/08/18/c.net-little-wonders-the-referenceequals-method.aspx