static void Main(string[] args)
{
//Set loop sentinels
bool mainProgramLoop = false;
bool preferredMenuLoop = false;
string input;
//Set index to track number of non-preferred customer transactions.
int index = 1;
//Store preferred and non-preferred customer information in lists
List <PreferredCustomer> customer = new List <PreferredCustomer>();
List <NonPreferredCustomer> nonPreferredCustomer = new List <NonPreferredCustomer>();
Console.WriteLine(StandardMessages.DisplayProgramInstructions());
Console.ReadLine();
Console.Clear();
do
{
//Display main program menu
Console.WriteLine(StandardMessages.DisplayMainMenu());
//get input from user
input = Console.ReadLine();
switch (input)
{
case "1":
//Build preferred customer and complete customer transaction
BuildCustomer.BuildACustomer(customer, preferredMenuLoop, input);
CustomerTransaction.CustomerItemPurchasePreferred(customer, input, preferredMenuLoop);
break;
case "2":
//Complete non-preferred customer transaction
CustomerTransaction.CustomerItemPurchaseNotPreferred(nonPreferredCustomer, index, input);
index++;
break;
case "3":
//Display all preferred customers for the day
DisplayCustomerInfo.DisplayPreferredCustomerInformation(customer);
break;
case "4":
//Display all non-preferred customer **Transactions** for the day
DisplayCustomerInfo.DisplayNotPreferredCustomerInformation(nonPreferredCustomer);
break;
case "5":
//Exits program
mainProgramLoop = true;
break;
default:
//Display for invalid selection
Console.WriteLine(StandardMessages.DisplayInvalidChoice());
break;
}
Console.Clear();
} while (mainProgramLoop == false);
}