using System;

using System.Text;

​

public class Program

{

    public static void Main()

    {

        String s1 = "MyTest";

        String s2 = new StringBuilder().Append("My").Append("Test").ToString(); 

        String s3 = String.Intern(s2); 

        Console.WriteLine("s1 == '{0}'", s1);

        Console.WriteLine("s2 == '{0}'", s2);

        Console.WriteLine("s3 == '{0}'", s3);

        Console.WriteLine("Is s2 the same reference as s1?: {0}", (Object)s2==(Object)s1); 

        Console.WriteLine("Is s3 the same reference as s1?: {0}", (Object)s3==(Object)s1);

    }

}