NotInJava.cs

using System;

namespace Hanna
{
    class Startup
    {
        static void Main()
        {
            String input = "12.12.2222";
            int[] x = { 0, 0, 0 };
            int dateWhich = 0;
            string currentNumber = "";
            string numberToCheck = "";

            for (int i = 0; i < input.Length; i++)
            {
                currentNumber = input[i].ToString();
                if (currentNumber != ".")
                {
                    numberToCheck = string.Concat(currentNumber, numberToCheck);
                }
                else
                {
                    //Convert.ToInt32 - v Java  e valueOf()
                    x[dateWhich] = Convert.ToInt32(Reverse(numberToCheck));
                    numberToCheck = "";
                    dateWhich++;
                }
            }
            x[dateWhich] = Convert.ToInt32(Reverse(numberToCheck));
        }

        public static string Reverse(string s)
        {
            char[] charArray = s.ToCharArray();
            Array.Reverse(charArray);
            return new string(charArray);
        }
    }
}