== vs. Object.Equals(object) in .NET

Question

So, when I was a comparative novice to the novice I am right now, I used to think that these two things were syntactic sugar for each other, i.e. that using one over the oth

Answer 1

Operator == and Equals() both are same while we are comparing values instead of references. Output of both are same see below example.

Example

    static void Main()
    {
        string x = " hello";
        string y = " hello";
        string z = string.Copy(x);
        if (x == y)
        {
            Console.WriteLine("== Operator");
        }
        if(x.Equals(y))
        {
            Console.WriteLine("Equals() Function Call");
        }
        if (x == z)
        {
            Console.WriteLine("== Operator while coping a string to another.");
        }
        if (x.Equals(y))
        {
            Console.WriteLine("Equals() Function Call while coping a string to another.");
        }
    }

Output:

  == Operator
  Equals() Function Call
  == Operator while coping a string to another.
  Equals() Function Call while coping a string to another.