Code for the Movie Ticket Booking System

Write the object-oriented code to implement the design of the movie ticket booking problem.

We'll cover the following

Movie ticket booking system
Wrapping up

We’ve gone over different aspects of the movie ticket booking system and observed the attributes attached to the problem using various UML diagrams. Let’s explore the more practical side of things, where we will work on implementing the movie ticket booking system using multiple languages. This is usually the last step in an object-oriented design interview process.

We have chosen the following languages to write the skeleton code of the different classes present in the movie ticket booking system:

Java
C#
Python
C++
JavaScript

Movie ticket booking system#

In this section, we will provide the skeleton code of the classes designed in the class diagram lesson.

Note: For simplicity, we are not defining getter and setter functions. The reader can assume that all class attributes are private and accessed through their respective public getter methods and modified only through their public method functions.

Enumerations#

The following code provides the definition of the various enumerations used in the movie ticket booking system:

Note: JavaScript does not support enumerations, so we will be using the Object.freeze() method as an alternative that freezes an object and prevents further modifications.

// Person is an abstract class
public abstract class Person {
  private String name;
  private String address;
  private String phone;
  private String email;
}
public class Customer extends Person {
  private List<Bookings> bookings; // List of bookings 
  
  // booking here refers to an instance of the Booking class
  public boolean createBooking(Booking booking);
  public boolean updateBooking(Booking booking);
  public boolean deleteBooking(Booking booking);
}
public class Admin extends Person {
  // show here refers to an instance of the ShowTime class
  public boolean addShow(Show show);
  public boolean updateShow(Show show);
  public boolean deleteShow(Show show);
  public boolean addMovie(Movie movie);
  public boolean deleteMovie(Movie movie);
}
public class TicketAgent extends Person {
  // booking here refers to an instance of the Booking class
  public boolean createBooking(Booking booking);
}

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Actors involved in the movie ticket booking system

// Seat is an abstract class
public abstract class Seat {
  // Data members
  private String seatNo;
  private SeatStatus status; // Refers to the SeatStatus enum
  // Member functions
  public boolean isAvailable();
  public abstract void setSeat();
  public abstract void setRate();
}
public class Platinum extends Seat {
  private double rate;
  public void setSeat() {
    // definition
  }
  public void setRate() {
    // definition
  }
}
public class Gold extends Seat {
  private double rate;
  public void setSeat() {
    // definition
  }
  public void setRate() {
    // definition
  }
}

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Seat and its derived classes

public class Movie {
  // Data members
  private String title;
  private String genre;
  private Date releaseDate;
  private String language;
  private int duration;
  private List<ShowTime> shows;
}
public class ShowTime {
  // Data members
  private int showId;
  
  // The Date datatype represents and deals with both date and time
  private Date startTime; 
  private Date date;
  private int duration;
  private List<Seat> seats;
  
  // Displays the list of available seats
  public void showAvailableSeats();
}
public class MovieTicket {
  // Data members
  private int ticketId;
  private Seat seat;
  private Movie movie;
  private ShowTime show;
}

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The Movie, ShowTime, and MovieTicket classes

public class City {
  // Data members
  private String name;
  private String state;
  private int zipCode;
  private List<Cinema> cinemas;
}
public class Cinema {
  // Data members
  private int cinemaId;
  private List<Hall> halls;
  private City city;
}
public class Hall {
  // Data members
  private int hallId;
  private List<ShowTime> shows;
  // Returns list of shows
  public List<ShowTime> findCurrentShows();
}

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The City, Cinema, and Hall classes

// Payment is an abstract class
public abstract class Payment {
  // Data members
  private double amount;
  // The Date datatype represents and deals with both date and time.
  private Date timestamp;
  private PaymentStatus status;
  public abstract boolean makePayment();
}
public class Cash extends Payment {
    public boolean makePayment() {
        // functionality
    }
}
public class CreditCard extends Payment {
    // Data members
    private String nameOnCard;
    private String cardNumber;
    private String billingAddress;
    private int code;
    public boolean makePayment() {
        // functionality
    }
}

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Payment class and its child classes

// Notification is an abstract class
public abstract class Notification {
  private int notificationId;
  // The Date datatype represents and deals with both date and time.
  private Date createdOn;
  private String content;
  // person here refers to an instance of the Person class 
  public abstract void sendNotification(Person person);
}
public class EmailNotification extends Notification {
  // person here refers to an instance of the Person class 
  public void sendNotification(Person person) {
    // functionality 
  }
}
public class PhoneNotification extends Notification {
  // person here refers to an instance of the Person class 
  public void sendNotification(Person person) {
    // functionality 
  }
}

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Notification class and its child classes

public class Booking {
  // Data members
  private int bookingId;
  private int amount;
  private int totalSeats;
  // The Date datatype represents and deals with both date and time.
  private Date createdOn;
  // BookingStatus enum
  private BookingStatus status;
  
  // Instances of classes
  private Payment payment;
  private ShowTime show;  
  private List<MovieTicket> tickets;
  private List<Seat> seats;
}

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The Booking class

public interface Search {
  public List<Movie> searchMovieTitle(String title);
  public List<Movie> searchMovieLanguage(String language);
  public List<Movie> searchMovieGenre(String genre);
  public List<Movie> searchMovieReleaseDate(Date date);
}
public class Catalog implements Search {
  HashMap<String, List<Movie>> movieTitles;
  HashMap<String, List<Movie>> movieLanguages;
  HashMap<String, List<Movie>> movieGenres;
  // The Date datatype represents and deals with both date and time.
  HashMap<Date, List<Movie>> movieReleaseDates;
  public List<Movie> searchMovieTitle(String title) {
    // functionality
  }
  public List<Movie> searchMovieLanguage(String language) {
    // functionality
  }
  public List<Movie> searchMovieGenre(String genre) {
    // functionality
  }
  public List<Movie> searchMovieReleaseDate(Date date) {
    // functionality
  }
}

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The Search interface and Catalog class

Activity Diagram for the Movie Ticket Booking System

Getting Ready: The Car Rental System