Chapter 7, Problem 20PC

Program Plan Intro

Seating in Theatre

Program Plan:

• Include header file section.
• Declare the global constants for number of rows and columns
• Declare the function prototypes.
• Inside main() function,
  • Declare the required variables for theater seating.
  • The outer for loop executes until the number of rows fails and the inner for loop executes until the number of columns fails.
  • Prompt the user to enter the ticket price for each row.
  • Use the do…while loop to display the menu options available using displayMenu() function.
    • Inside the loop, use the switch…case expression to select the case based upon the user choice.
    • If the user choice is “1”, then call the function displaySeats() to display the number of seats.
    • If the user choice is “2”, then call the function displayPrices() to display the seat prices.
    • If the user choice is “3”, then call the function displaySales() to display the total number of sales.
    • If the user choice is “4”, then call the function purchaseTicket() to display the number of tickets purchased.
    • If the user choice is “5”, then exit from the program.
  • If the user enters the choice other than 5, then while loop executes until the user enters correct choice.
• In function displayMenu(),
  • Print the header with available menu options.
• In function getChoice(),
  • Validate the choice entered by the user. If validation fails, ask the user to re-enter the choice.
• In function displaySeats(),
  • This function uses two for loops to print the theater seating with sold and available tickets on theatre.
• In function displayPrices(),
  • This function uses two for loops to print the ticket prices for each row.
• In function purchaseTicket(),
  • Prompt the user to enter the input “yes” or “no” to view the seating details of chart.
  • Convert the input to uppercase and call the function displaySeats() to display number of seats in theatre.
  • Use do..while loop to enter the desired row number.
    • Validate using while loop whether the entered row number is from 1 to 15. Otherwise ask the user to re-enter the input.
    • Validate using while loop whether the entered seat number is from 1 to 30. Otherwise ask the user to re-enter the input.
    • The if condition validates whether the seat is marked with “#” or “*”.
    • If the seat is market with “#” then the seat is available print the user with the message “purchase confirmed”.
    • Calculate the patron’s ticket total and total price of tickets that has been sold.
    • If the seat is market with “*” otherwise the seat is taken by some other user.
  • Display the total price of tickets.
• In function displayPrices(),
  • This function prints the total sales upto the current date.