public void StartTheMachine() { vendMach.ReadyTheInventory(); string userChoice = ""; while (userChoice != "3") { Console.WriteLine("Press 1 to display a list of available items"); Console.WriteLine("Press 2 to purchase an item"); Console.WriteLine("Press 3 to exit"); userChoice = Console.ReadLine(); if (userChoice == "1") { Console.Clear(); vendMach.DisplayItemList(); } else if (userChoice == "2") { DisplayPurchaseMenu(); } else if (userChoice == "4") { vendMach.GenerateSalesReport(); } } }