static void Main(string[] args)
        {
            Console.WriteLine("Welcome to the Fortune Teller Application!");

            QuestionAsker fortuneAsker   = new QuestionAsker();
            AnswerChecker fortuneChecker = new AnswerChecker(fortuneAsker);

            fortuneAsker.AskFirstName();
            fortuneAsker.FirstName = Console.ReadLine();



            fortuneAsker.AskLastName();
            fortuneAsker.LastName = Console.ReadLine();


            //refactor to have a method that checks for int

            int  ageNumber;
            bool isInt;

            do
            {
                fortuneAsker.AskAge();
                string input = Console.ReadLine();
                isInt = Int32.TryParse(input, out ageNumber);

                if (!isInt)
                {
                    Console.WriteLine("Entry invalid, please enter a number");
                }
            } while (!isInt);

            fortuneAsker.AgeNumber = ageNumber;

            fortuneAsker.AskBirthMonthNumber();
            fortuneAsker.BirthMonth = int.Parse(Console.ReadLine());


            do
            {
                fortuneAsker.AskFavoriteColor();
                fortuneAsker.FavoriteColor = Console.ReadLine();
                if (fortuneAsker.FavoriteColor.Equals("help", StringComparison.InvariantCultureIgnoreCase))
                {
                    Console.WriteLine("The ROYGBIV colors are Red, Orange, Green, Blue, Indigo, and Violet.");
                }
            } while (fortuneAsker.FavoriteColor.Equals("help", StringComparison.InvariantCultureIgnoreCase));

            fortuneAsker.AskNumberOfSiblings();
            fortuneAsker.SiblingsNumber = int.Parse(Console.ReadLine());

            //retirement based on age

            fortuneChecker.CheckRetirmentYears();


            //bank balance based on birth month

            fortuneChecker.CheckBankBalance();

            //vacation spot based on number of siblings

            fortuneChecker.CheckVacationSpot();


            //car driven based on favorite color
            fortuneChecker.CheckCarColor();

            //the final concatenation, nothing fancy
            Console.WriteLine(fortuneAsker.FirstName + " " + fortuneAsker.LastName + " will retire in " + fortuneChecker.RetirementYears + " years, with $" + fortuneChecker.BankBalance + " in their bank account, will have a vacation home in " + fortuneChecker.VacationSiblings + ", and will drive a " + fortuneChecker.CarColor + ".");

            //using string.format
            string msg = string.Format("{0} {1} will retire in {2} years, with ${3} uin their bank account, will have a vacation home in {4} and will drive a {5}.", fortuneAsker.FirstName, fortuneAsker.LastName, fortuneChecker.RetirementYears, fortuneChecker.BankBalance, fortuneChecker.VacationSiblings, fortuneChecker.CarColor);

            Console.WriteLine(msg);

            //interpolated string
            Console.WriteLine($"{fortuneAsker.FirstName} {fortuneAsker.LastName} will retire in {fortuneChecker.RetirementYears} years, with ${fortuneChecker.BankBalance} in their bank account, will have a vacation home in {fortuneChecker.VacationSiblings} and will drive a {fortuneChecker.CarColor}.");
        }
 public AnswerChecker(QuestionAsker fortuneAsker)
 {
     this._fortuneAsker = fortuneAsker;
 }