Class Picture Collection - Python Programming Exercise

In this exercise, you will develop a Python program with a class named "PhotoAlbum" that includes a private attribute "pageCount." This exercise is perfect for practicing class definition, inheritance, and method implementation in Python. By implementing these classes, you will gain hands-on experience in handling class definitions, inheritance, and method implementation in Python. This exercise not only reinforces your understanding of object-oriented programming but also helps you develop efficient coding practices for managing user interactions.

Exercise

Class Picture Collection

Objective

Develop a Python a class named "PhotoAlbum" with a private attribute "pageCount."

Include a public method "getPageCount" that will return the total number of pages in the album.

The default constructor should create an album with 16 pages, but there should also be an alternative constructor to specify a custom page count when creating the album.

Also, create a subclass called "LargePhotoAlbum" where the constructor will set the album's pages to 64 by default.

Write a separate test class "AlbumTest" to create:

An album with the default constructor.
An album with 24 pages.
A "LargePhotoAlbum". Then, display the total number of pages in all three albums.

Example Python Exercise

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# Base class PhotoAlbum
class PhotoAlbum:
    def __init__(self, page_count=16):
        # Initialize the album with a default or specified page count
        self.__pageCount = page_count  # Private attribute for page count

def getPageCount(self):
        # Return the total number of pages in the album
        return self.__pageCount

# Subclass LargePhotoAlbum that inherits from PhotoAlbum
class LargePhotoAlbum(PhotoAlbum):
    def __init__(self):
        # Initialize the large photo album with a default of 64 pages
        super().__init__(64)  # Calls the constructor of PhotoAlbum with 64 pages

# Test class to demonstrate the functionality
class AlbumTest:
    @staticmethod
    def Main():
        # Create a PhotoAlbum with the default constructor (16 pages)
        album1 = PhotoAlbum()
        print(f"Album 1 has {album1.getPageCount()} pages.")

# Create a PhotoAlbum with 24 pages
        album2 = PhotoAlbum(24)
        print(f"Album 2 has {album2.getPageCount()} pages.")

# Create a LargePhotoAlbum (64 pages)
        large_album = LargePhotoAlbum()
        print(f"Large PhotoAlbum has {large_album.getPageCount()} pages.")

# Run the test class
AlbumTest.Main()

# Base class PhotoAlbum
class PhotoAlbum:
    def __init__(self, page_count=16):
        # Initialize the album with a default or specified page count
        self.__pageCount = page_count  # Private attribute for page count

    def getPageCount(self):
        # Return the total number of pages in the album
        return self.__pageCount

# Subclass LargePhotoAlbum that inherits from PhotoAlbum
class LargePhotoAlbum(PhotoAlbum):
    def __init__(self):
        # Initialize the large photo album with a default of 64 pages
        super().__init__(64)  # Calls the constructor of PhotoAlbum with 64 pages

# Test class to demonstrate the functionality
class AlbumTest:
    @staticmethod
    def Main():
        # Create a PhotoAlbum with the default constructor (16 pages)
        album1 = PhotoAlbum()
        print(f"Album 1 has {album1.getPageCount()} pages.")

        # Create a PhotoAlbum with 24 pages
        album2 = PhotoAlbum(24)
        print(f"Album 2 has {album2.getPageCount()} pages.")

        # Create a LargePhotoAlbum (64 pages)
        large_album = LargePhotoAlbum()
        print(f"Large PhotoAlbum has {large_album.getPageCount()} pages.")

# Run the test class
AlbumTest.Main()

Output

python photo_album.py
Album 1 has 16 pages.
Album 2 has 24 pages.
Large PhotoAlbum has 64 pages.

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Class Picture Collection - Python Programming Exercise

Category

OOP Object-Oriented Programming

Exercise