public static void SpecificEmployeesMenu() { int?specificEmployeesMenuChoice = MenuUtils.GetIntChoice(MenuUtils.SpecificEmployeesMenu(), 1, 3); switch (specificEmployeesMenuChoice) { case 1: SelectByLastName(); Menu.SelectByLastNameMenu(); break; case 2: SelectByFunction(); break; case 3: Menu.EmployeesMenu(); break; default: Menu.SpecificEmployeesMenu(); break; } }