static void Main(string[] args) { AgeCalculator AC = new AgeCalculator(); DateTime result; string naam = Console.ReadLine(); Console.Write("Hello " + naam + "\n"); Console.Write("Write your date of birth \n"); string dateBirth = Console.ReadLine(); if (AC.ParseInput(dateBirth, out result)) { Console.Write(AC.CalculateAge(result)); Console.ReadKey(); } else { Console.Write("That was not a valid input for the date of birth"); } }