// Method to issue a boarding pass
private static void IssueBoardingPass(Passenger NewPassenger, int NumberOfAllSeats)
{
string Flight = "QF61"; // Flight number
string Depart = "BNE"; // Departure
string Arrive = "TYO"; // Arrival
int Gate = 83; // Departure gate
DateTime DepTime = new DateTime(2019, 6, 2, 9, 35, 00); // Departure time
bool CheckUserInput;
bool Available = false; // Checks the availability of the selected seat
Write("How many passengers are traveling? >> ");
CheckUserInput = int.TryParse(ReadLine(), out int NumberOfPassengers);
NewPassenger.CheckUserInput(ref CheckUserInput, ref NumberOfPassengers, NumberOfAllSeats);
int SeatsNeeded = NumberOfPassengers;
// SeatNeeded is the number of seats that are required for passengers in one invoice.
// It decrements one by one in every iteration when the user input one passenger information.
for (int i = 0; i < NumberOfPassengers; i++)
{
NewPassenger.SeatMapDisplay(NumberOfAllSeats);
NewPassenger.NumberOfAvailableSeats(out int AvailableSeats, NumberOfAllSeats);
if (AvailableSeats >= SeatsNeeded)
{
CheckUserInput = int.TryParse(Passenger.GetInput("Please select a seat >> "), out int PreferredSeat);
do
{
NewPassenger.CheckUserInput(ref CheckUserInput, ref PreferredSeat, NumberOfAllSeats);
NewPassenger.CheckAvailability(ref PreferredSeat, ref Available, ref CheckUserInput);
}while (CheckUserInput == false || Available == false || PreferredSeat > NumberOfAllSeats);
// Ask passenger's first name and show an error message if the user input nothing
do
{
NewPassenger.FName[PreferredSeat - 1] = Passenger.GetName("first name");
if (NewPassenger.FName[PreferredSeat - 1].Length == 0)
{
WriteLine("Your input is invalid. Please try again.");
}
}while (NewPassenger.FName[PreferredSeat - 1].Length == 0);
// Ask passenger's last name and show an error message if the user input nothing
do
{
NewPassenger.LName[PreferredSeat - 1] = Passenger.GetName("last name");
if (NewPassenger.LName[PreferredSeat - 1].Length == 0)
{
WriteLine("Your input is invalid. Please try again.");
}
}while (NewPassenger.LName[PreferredSeat - 1].Length == 0);
// Assign a security number
NewPassenger.SecurityNumber[PreferredSeat - 1] = NewPassenger.GenerateSN(out NewPassenger.SecurityNumber[PreferredSeat - 1]);
// Get the time when the boarding pass is issued
NewPassenger.IssuingTime[PreferredSeat - 1] = NewPassenger.GetCurrentTime(out NewPassenger.IssuingTime[PreferredSeat - 1]);
WriteLine();
NewPassenger.TicketDisplay(Flight, Depart, Arrive, Gate, DepTime, PreferredSeat);
SeatsNeeded--; // Decrements as the user took one seat above
// Shows different messages depending on the number of passengers in one invoice
if (i == NumberOfPassengers - 1)
{
WriteLine("Press Enter to go back to the main menu...");
}
else
{
WriteLine("Press Enter to continue to the next passenger...");
}
ReadKey(); // Waits for user input to show the issued boarding pass
}
else
{
WriteLine("I'm sorry, but the number of available seats is currently {0}. Please call for an assistance.", AvailableSeats);
i = NumberOfPassengers; // Immediately breaks the for loop and goes back to main menu since there are not enough seats for user input
ReadKey();
}
Clear();
}
}
static void Main(string[] args)
{
int NumberOfAllSeats = 40;
int ErrorCounter; // Counts the number of errors to limit the trial to three times
int MaxTrial = 3; // Number of trials users can make at once
int Continue; // Switch case label for the choice of a passenger/airline/exit
int Options; // Switch case label for airline options
bool CheckUserInput;
// Create an array whose length is 40
Passenger NewPassenger = new Passenger(NumberOfAllSeats);
do
{
ErrorCounter = 0; // Initialize and reset the counter
WriteLine("WELCOME TO ABC AIRLINES BOARDING PASS SYSTEM!");
WriteLine();
WriteLine("Are you a passenger or an airline assistant?");
WriteLine("1. Passenger");
WriteLine("2. Airline Staff");
WriteLine("3. Exit");
Write(">> ");
CheckUserInput = int.TryParse(ReadLine(), out Continue);
// Switch sections for the choice of a passenger/airline/exit
switch (Continue)
{
// For passengers
case 1:
Clear();
IssueBoardingPass(NewPassenger, NumberOfAllSeats);
break;
// For airline staffs
case 2:
Clear();
do
{
WriteLine("The program goes back to the main menu if your input is invalid for three times.");
WriteLine("What do you want to do?");
WriteLine();
WriteLine("1. Issue a boarding pass");
WriteLine("2. See available seats");
WriteLine("3. See a list of passengers");
WriteLine("4. Go back to the main menu");
Write(">> ");
CheckUserInput = int.TryParse(ReadLine(), out Options);
Clear();
// Switch sections for airline options
switch (Options)
{
// Issue boarding passes
case 1:
IssueBoardingPass(NewPassenger, NumberOfAllSeats);
break;
// View a map of available seats
case 2:
NewPassenger.SeatMapDisplay(NumberOfAllSeats);
Write("Press Enter to go back to the main menu...");
ReadKey();
Clear();
break;
// View the list of boarding passengers
case 3:
NewPassenger.ListDisplay(NumberOfAllSeats);
Write("Press Enter to go back to the main menu...");
ReadKey();
Clear();
break;
// Go back to the main menu
case 4:
break;
// Displays an error message and asks another input
default:
ErrorCounter++;
WriteLine("Your input is invalid. Please try again.");
WriteLine();
break;
}
} while (ErrorCounter < MaxTrial && Options != 1 && Options != 2 && Options != 3 && Options != 4);
// Automatically goes back to the main menu if user input invalid value for three times
break;
// Terminate the program
case 3:
break;
// Displays an error message and asks another input
default:
Clear();
WriteLine("Your input is invalid. Please try again.");
WriteLine();
break;
}
} while (Continue != 3); // Terminates when user input is 3 (Exit)
}