public static void AddOperators() { try { Console.Write("enter no. of Operators you want to add : "); int n = Convert.ToInt32(Console.ReadLine()); for (int i = 0; i < n; i++) { MobileOperator mobileOperator = new MobileOperator(); Console.WriteLine("enter operator name "); mobileOperator.OperatorName = Console.ReadLine(); Console.WriteLine("enter operator Rating "); mobileOperator.OperatorRating = Convert.ToDecimal(Console.ReadLine()); business.AddOperator(mobileOperator); } Console.WriteLine("--------------------------"); Console.WriteLine("mobile Operator added successfully"); Console.WriteLine("--------------------------"); } catch (InvalidData e) { Console.WriteLine("--------------------------"); Console.WriteLine(e.Message); Console.WriteLine("--------------------------"); } catch (RatingOverLoadedException e) { Console.WriteLine("--------------------------"); Console.WriteLine(e.Message); Console.WriteLine("--------------------------"); } catch (Exception e) { Console.WriteLine("--------------------------"); Console.WriteLine(e.Message); Console.WriteLine("--------------------------"); } }