Palindrome Program in c#.net

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            string str = string.Empty;

            Console.WriteLine("Enter a String");

            string s = Console.ReadLine();

            int i = s.Length;

            //we can get the Length of string

            for (int j = i - 1; j >= 0; j--)

            {

                str = str + s[j];

            }

            if (str == s)

            {

                Console.WriteLine(s + " is palindrome");

            }

            else

            {

                Console.WriteLine(s + " is not a palindeome");

            }

            Console.WriteLine(str);

            Console.ReadLine();

        }

    }

}