static void Main(string[] args) { Console.WriteLine("\n........Welcome To Object Oriented Programs........\n"); bool flag = true; while (flag) { try { Console.WriteLine("\n"); Console.WriteLine("\t1. Inventory Data Management"); Console.WriteLine("\t2. Inventory Management Program"); Console.WriteLine("\t3. Address Book"); Console.WriteLine("\t4. Stock Account Management"); Console.WriteLine("\t5. Deck Of Cards"); Console.WriteLine("\t6. Deck Of Cards Using Queue"); Console.WriteLine("\t7. Clinique Management"); Console.WriteLine("\t8. Commercial Data Processing"); Console.WriteLine("\t9. Exit"); Console.Write("Enter Your Choice: "); int choice = Convert.ToInt32(Console.ReadLine()); switch (choice) { case 1: InventoryUtility.InventoryMain(); break; case 2: InventoryManagement.InventoryManager(); break; case 3: AddressBookProgram.AddressBook(); break; case 4: StockReportProgram.StockReport(); break; case 5: DeckOfCardsProgram.DeckOfCards(); break; case 6: DeckOfCardsQueueProgram.DeckOfCardsQueue(); break; case 7: CliniqueManagementProgram.CliniqueManagement(); break; case 8: StockAccountReportProgram.StockReport();; break; case 9: flag = false; break; default: Console.WriteLine("Wrong choice!"); break; } } catch (Exception ex) { Console.WriteLine(ex); } } }