Write a program in C# Sharp to get the reverse of a string using recursion

using System;
class RecExercise14
    {
        static void Main()
        {
            string str; 
			Console.WriteLine("\n\n Recursion : Get the reverse of a string :");
			Console.WriteLine("----------------------------------------------"); 
			Console.Write(" Input the string : ");
            str = Console.ReadLine();
            str = StringReverse(str);
            Console.Write(" The reverse of the string is : ");
            Console.Write(str);
            Console.ReadKey();
             Console.Write("\n");        
        }
        public static string StringReverse(string str)
        {
            if (str.Length > 0)
                return str[str.Length - 1] + StringReverse(str.Substring(0, str.Length - 1));
            else
                return str;
        }
    }