6 PM – Python OOP – Joel

Today we did:

1. We worked on GameSystem and finished it.

Homework:

• Cinema Ticket Booking System:
• You need to create 3 Python classes in three separate files:

  a. cinema.py – Cinema class
  b. imax_cinema.py – IMAXCinema class
  c. cinema_system.py – CinemaSystem

• Cinema class will have the following attributes:

  a. name – String
  b. base_price – Integer
  c. type – String
  Default value “Regular Cinema”

• get_info(self):This method will return a string combination of attributes name, base_price, and type in the following format:

  <name> – $<base_price> – <type>

  Example:

  CGV – $10 – Regular Cinema

• get_ticket_price(self, tickets):

  tickets – Integer

  This method will calculate the total ticket price using the formula:

  tickets * base_price

  This method will return the total ticket price.

• IMAXCinema class

  a. This class needs to inherit from Cinema class

  b. This class needs to have attribute:

  self.type = “IMAX Cinema”

  c. This class needs to override the method:

  get_ticket_price(self, tickets)

  Inside this method, ticket price will be calculated using:

  tickets * base_price * 1.5

  This method must also print:

  “IMAX experience includes premium screen and sound!”

• CinemaSystem class is where the program starts.
• CinemaSystem class will have a dictionary to store all cinemas

  Dictionary key → cinema name

  Dictionary value → either Cinema or IMAXCinema object

• CinemaSystem will provide the following 3 functionalities

  – Add cinema

  – Buy tickets

  – Exit

• CinemaSystem will provide 2 options when adding a cinema

  – Regular Cinema

  – IMAX Cinema

  Regular Cinema → represented by Cinema class

  IMAX Cinema → represented by IMAXCinema class

• Buy Tickets Functionality

  When user selects Buy tickets, the system will:

  – Display all cinemas in the system

  – Ask user to select a cinema by name

  – Ask user to input number of tickets

  – Calculate total ticket price using: get_ticket_price(tickets)

  – Display total price