public static int InputIndexValidation() { int value; while (!int.TryParse(Console.ReadLine(), out value) || value < 0) { Console.WriteLine("Please enter a valid positive number"); } if (value < EmployeeJournal.GetEmployees().Length) { EmployeeJournal.RemoveAt(value); Console.WriteLine($"The employee on index {value} was succesffully removed from the list"); Console.WriteLine(); } else { Console.WriteLine("There is no such employee"); } return(value); }