Write a program that can be used by a small theater to sell tickets for performa
ID: 3688296 • Letter: W
Question
Write a program that can be used by a small theater to sell tickets for performances. The theater’s auditorium has 15 rows of seats, with 30 seats in each row. The program should display a screen that shows which seats are available and which are taken. For example, the following screen shows a chart depicting each seat in the theater. Seats that are taken are represented by an * symbol, and seats that are available are represented by a # symbol:
Here is a list of tasks this program must perform:
When the program begins, it should ask the user to enter the seat prices for each row. The prices can be stored in a separate array. (Alternatively, the prices may be read from a file.)
Once the prices are entered, the program should display a seating chart similar to the one shown above. The user may enter the row and seat numbers for tickets being sold. Every time a ticket or group of tickets is purchased, the program should display the total ticket prices and update the seating chart.
The program should keep a total of all ticket sales. The user should be given an option of viewing this amount. • The program should also give the user an option to see a list of how many seats have been sold, how many seats are available in each row, and how many seats are available in the entire auditorium.
Explanation / Answer
#include <iostream>
#include <iomanip>
#include <fstream>
#include <cstdlib> // Needed for the exit function.
//Function Prototypes.
void displayColsNumber();
void setupInitialSeatingChart(char[][30], int, int);
void displaySubsequentSeatingChart(char[][30], int, int);
void readFile(double[], int);
void displayMenu(int &);
void reservePlatinumRows(char[][30], double[], double&, int&);
void reserveGoldRows(char[][30], double[], double&, int&);
void reserveEconomyRows(char[][30], double[], double&, int&);
void countEmptySeatsInRow(char seats[][30], int chooseRows, int MAXCOLS);
void InputNumber(int&);
void validateColsInput(int&);
void displayPrices(double[]);
int main()
{
const int MAXCOLS{ 30 };
const int MAXROWS{ 15 };
const int TOTALSEATS{ MAXCOLS * MAXROWS };
char seats[MAXROWS][MAXCOLS];
int choice{ 0 };
int chooseRows{ 0 };
double prizes[3];
double runningTotal{ 0.0 };
int countSoldSeats{ 0 };
readFile(prizes, 3);
setupInitialSeatingChart(seats, MAXROWS, MAXCOLS);
bool keepLooping{ true };
while (keepLooping)
{
displayMenu(choice);
switch (choice)
{
case 1: displaySubsequentSeatingChart(seats, MAXROWS, MAXCOLS); keepLooping = true;
break;
case 2: displayPrices(prizes);
break;
case 3: reservePlatinumRows(seats, prizes, runningTotal, countSoldSeats); keepLooping = true;
break;
case 4: reserveGoldRows(seats, prizes, runningTotal, countSoldSeats); keepLooping = true;
break;
case 5: reserveEconomyRows(seats, prizes, runningTotal, countSoldSeats); keepLooping = true;
break;
case 6: std::cout << "The Total of Number of Seat Solds is " << countSoldSeats << std::endl; keepLooping = true;
break;
case 7: countEmptySeatsInRow(seats, chooseRows, MAXCOLS); keepLooping = true;
break;
case 8: std::cout << "The Total Number of Available Seats in the Auditorium is " << TOTALSEATS - countSoldSeats << std::endl; keepLooping = true;
break;
case 9: std::cout << "The Total Amount of Sales is $" << runningTotal << std::endl; keepLooping = true;
break;
case 10: std::cout << "Closing the program... "; keepLooping = false;
break;
default: std::cout << "Please choose between 1-10 "; keepLooping = true;
}
}
return 0;
}
void displayColsNumber()
{
std::cout << std::right << std::setw(7) << " ";
for (int count = 0; count < 9; count++)
{
std::cout << count + 1;
}
for (int count = 0; count < 10; count++)
{
std::cout << count;
}
for (int count = 0; count < 10; count++)
{
std::cout << count;
if (count == 9)
{
count = 0;
std::cout << count;
break;
}
}
std::cout << std::endl;
}
void setupInitialSeatingChart(char seats[][30], int MAXROWS, int MAXCOLS)
{
for (int numRows = 0; numRows < MAXROWS; numRows++)
for (int numCols = 0; numCols < MAXCOLS; numCols++)
seats[numRows][numCols] = '#';
}
void displaySubsequentSeatingChart(char seats[][30], int MAXROWS, int MAXCOLS)
{
displayColsNumber();
for (int numRows = 0; numRows < MAXROWS; numRows++)
{
std::cout << std::left << std::setw(2) << "Row " << std::setw(2) << numRows + 1 << " ";
for (int numCols = 0; numCols < MAXCOLS; numCols++)
std::cout << std::setw(1) << seats[numRows][numCols];
std::cout << std::endl;
}
}
void readFile(double prices[], int size)
{
std::ifstream prizesFile;
int count{ 0 };
prizesFile.open("SeatPrices.txt");
if (prizesFile)
{
while (prizesFile >> prices[count] && count < size)
count++;
std::cout << "Prices loaded successful. ";
prizesFile.close();
}
else
{
std::cout << "Error opening the file SeatPrices.txt ";
std::cout << "Ensure the file is in the same place as the .exe file ";
std::cout << "The program will close now... ";
exit(0); // Needed to close the program for the user to ensure the file exist.
}
}
void displayMenu(int &choice)
{
std::cout << " Theater Seating "
<< " 1. Display the Seating Chart "
<< " 2. Display the Prizes of the Seats "
<< " 3. Reserve Platinum Class Rows (1-5) "
<< " 4. Reserve Gold Class Rows (6-10) "
<< " 5. Reserve Economy Class Rows (11-15) "
<< " 6. Display Total Number of Seat Solds "
<< " 7. Display Total Number of Available Seats per Row "
<< " 8. Display Total Number of Available Seats in the Auditorium "
<< " 9. Display Total amount of sales "
<< " 10. Exit the Program "
<< " Enter your choice: ";
InputNumber(choice);
}
void reservePlatinumRows(char seats[][30], double prizes[], double& runningTotal, int& countSoldSeats)
{
int chooseRows{ 0 }, chooseCols{ 0 };
std::cout << "Choose the Seating Row [1-5]: ";
InputNumber(chooseRows);
while (chooseRows < 1 || chooseRows > 5)
{
std::cout << "The Platinum Rows are from 1 to 5 ";
std::cout << "Choose the Seating Row [1-5]: ";
InputNumber(chooseRows);
}
std::cout << "Choose the Seating Column [1-30]: ";
InputNumber(chooseCols);
validateColsInput(chooseCols);
if (seats[chooseRows - 1][chooseCols - 1] == '#')
{
if (chooseRows < 6)
{
std::cout << "The price for the row [" << chooseRows << "] is $" << prizes[0] << std::endl;
runningTotal += prizes[0];
std::cout << "The Total price for the seats is $" << runningTotal << std::endl;
}
seats[chooseRows - 1][chooseCols - 1] = '*';
std::cout << "===SEAT RESERVED=== ";
countSoldSeats++;
}
else if (seats[chooseRows - 1][chooseCols - 1] == '*')
{
std::cout << "===SEAT IS OCCUPIED=== ";
std::cout << "Choose another seat. ";
}
}
void reserveGoldRows(char seats[][30], double prizes[], double& runningTotal, int& countSoldSeats)
{
int chooseRows{ 0 }, chooseCols{ 0 };
std::cout << "Choose the Seating Row [6-10]: ";
InputNumber(chooseRows);
while (chooseRows < 6 || chooseRows > 10)
{
std::cout << "The Gold Rows are from 6 to 10 ";
std::cout << "Choose the Seating Row [6-10]: ";
InputNumber(chooseRows);
}
std::cout << "Choose the Seating Column [1-30]: ";
InputNumber(chooseCols);
validateColsInput(chooseCols);
if (seats[chooseRows - 1][chooseCols - 1] == '#')
{
if (chooseRows > 5 && chooseRows < 11)
{
std::cout << "The price for the row [" << chooseRows << "] is $" << prizes[1] << std::endl;
runningTotal += prizes[1];
std::cout << "The Total price for the seats is $" << runningTotal << std::endl;
}
seats[chooseRows - 1][chooseCols - 1] = '*';
std::cout << "===SEAT RESERVED=== ";
countSoldSeats++;
}
else if (seats[chooseRows - 1][chooseCols - 1] == '*')
{
std::cout << "===SEAT IS OCCUPIED=== ";
std::cout << "Choose another seat. ";
}
}
void reserveEconomyRows(char seats[][30], double prizes[], double& runningTotal, int& countSoldSeats)
{
int chooseRows{ 0 }, chooseCols{ 0 };
std::cout << "Choose the Seating Row [11-15]: ";
InputNumber(chooseRows);
while (chooseRows < 11 || chooseRows > 15)
{
std::cout << "The Economy Rows are from 11 to 15 ";
std::cout << "Choose the Seating Row [11-15]: ";
InputNumber(chooseRows);
}
std::cout << "Choose the Seating Column [1-30]: ";
InputNumber(chooseCols);
validateColsInput(chooseCols);
if (seats[chooseRows - 1][chooseCols - 1] == '#')
{
if (chooseRows > 10 && chooseRows < 16)
{
std::cout << "The price for the row [" << chooseRows << "] is $" << prizes[2] << std::endl;
runningTotal += prizes[2];
std::cout << "The Total price for the seats is $" << runningTotal << std::endl;
}
seats[chooseRows - 1][chooseCols - 1] = '*';
std::cout << "===SEAT RESERVED=== ";
countSoldSeats++;
}
else if (seats[chooseRows - 1][chooseCols - 1] == '*')
{
std::cout << "===SEAT IS OCCUPIED=== ";
std::cout << "Choose another seat. ";
}
}
void countEmptySeatsInRow(char seats[][30], int chooseRows, int MAXCOLS)
{
int countEmptyRows{ 0 };
std::cout << "Please select a row to determine the number of empty seats: ";
InputNumber(chooseRows);
for (int count = 0; count < MAXCOLS; count++)
{
if (seats[chooseRows - 1][count] == '#')
countEmptyRows++;
}
std::cout << "There are " << countEmptyRows << " empty seats in Row # " << chooseRows << std::endl;
}
void InputNumber(int& choice)
{
bool bFail{ false };
do
{
std::cin >> choice;
bFail = std::cin.fail();
if (bFail)
std::cout << "Ensure your input is numbers only: ";
std::cin.clear();
//std::cin.ignore(std::numeric_limits<std::streamsize>::max(), ' ');
} while (bFail == true);
}
void validateColsInput(int& chooseCols)
{
while (chooseCols < 1 || chooseCols > 30)
{
std::cout << "The Colums number are from 1-30 ";
std::cout << "Choose the Seating Column [1-30]: ";
InputNumber(chooseCols);
}
}
void displayPrices(double prizes[])
{
std::cout << "The following are the Prices for the seating: ";
std::cout << "Platinum Seats : $" << prizes[0] << std::endl;
std::cout << "Gold Seats : $" << prizes[1] << std::endl;
std::cout << "Economy Seats : $" << prizes[2] << std::endl;
}
SeatPrices.txt
3.00
3.00
2.75
2.75
2.50
2.50
2.25
2.25
2.00
2.00
1.75
1.75
1.50
1.50
1.25
output
Prices loaded successful.
Theater Seating
1. Display the Seating Chart
2. Display the Prizes of the Seats
3. Reserve Platinum Class Rows (1-5)
4. Reserve Gold Class Rows (6-10)
5. Reserve Economy Class Rows (11-15)
6. Display Total Number of Seat Solds
7. Display Total Number of Available Seats per Row
8. Display Total Number of Available Seats in the Auditorium
9. Display Total amount of sales
10. Exit the Program
Enter your choice: 1
123456789012345678901234567890
Row 1 ##############################
Row 2 ##############################
Row 3 ##############################
Row 4 ##############################
Row 5 ##############################
Row 6 ##############################
Row 7 ##############################
Row 8 ##############################
Row 9 ##############################
Row 10 ##############################
Row 11 ##############################
Row 12 ##############################
Row 13 ##############################
Row 14 ##############################
Row 15 ##############################
Theater Seating
1. Display the Seating Chart
2. Display the Prizes of the Seats
3. Reserve Platinum Class Rows (1-5)
4. Reserve Gold Class Rows (6-10)
5. Reserve Economy Class Rows (11-15)
6. Display Total Number of Seat Solds
7. Display Total Number of Available Seats per Row
8. Display Total Number of Available Seats in the Auditorium
9. Display Total amount of sales
10. Exit the Program
Enter your choice: 9
The Total Amount of Sales is $0
Theater Seating
1. Display the Seating Chart
2. Display the Prizes of the Seats
3. Reserve Platinum Class Rows (1-5)
4. Reserve Gold Class Rows (6-10)
5. Reserve Economy Class Rows (11-15)
6. Display Total Number of Seat Solds
7. Display Total Number of Available Seats per Row
8. Display Total Number of Available Seats in the Auditorium
9. Display Total amount of sales
10. Exit the Program
Enter your choice:
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