C- Create the sub class UsedBook that is derived from the super class Book and has the following instance variables, constructor, and functions: title ( String) isbn ( String) authors (String) publisher (String) edition ( int) published_year (int) price_new (double) // the price of the book if it is new age (int) // how old the book is in years Constructor that takes all of the above variables as input parameters. set/get functions calculate_price method // the price is calculated as price_new * (1- 0.10*age) print function that prints all information related to the old book. D- Create the Testing class that has the main method and does the following: aa- Use the constructor to create instance of NewBook class and name it as new. Call compute_price function. bb- Use the constructor to create instance of usedBook class and name it used. Call compute_price function. cc- Print the related information of new and used objects using print functions. Use this following code: class Book: def__init__(self, title, isbn, authors, publisher, edition, published_year): self.title = title self.isbn = isbn self.authors = authors self.publisher = publisher self.edition = edition self.published_year = published_year # Setters defsetTitle(self,title): self.title = title defsetIsbn(self,isbn): self.isbn = isbn defsetAuthor(self,authors): self.authors = authors defsetPublisher(self, publisher): self.publisher = publisher defsetEdtion(self,edition): self.edition = edition defsetPublishedYear(self, published_year): self.published_year = published_year # Getters defgetTitle(self): returnself.title defgetIsbn(self): returnself.isbn defgetAuthor(self): returnself.authors defgetPublisher(self): returnself.publisher defgetEdtion(self): returnself.edition defgetPublishedYear(self): returnself.published_year defprint(self): print("Title: ",self.getTitle()) print("ISBN: ",self.getIsbn()) print("Authors: ",self.getAuthor()) print("Publisher: ",self.getPublisher()) print("Edition: ",self.getEdtion()) print("Published Year: ",self.getPublishedYear()) class NewBook(Book): def__init__(self, title, isbn, authors, publisher, edition, published_year, price): super().__init__(title, isbn, authors, publisher, edition, published_year) self.price = price defsetPrice(self,price): self.price = price defcalculate_price(self): returnself.price defprint(self): super().print() print("Price: ",self.calculate_price())

C- Create the sub class UsedBook that is derived from the super class Book and has the following instance variables, constructor, and functions: title ( String) isbn ( String) authors (String) publisher (String) edition ( int) published_year (int) price_new (double) // the price of the book if it is new age (int) // how old the book is in years Constructor that takes all of the above variables as input parameters. set/get functions calculate_price method // the price is calculated as price_new * (1- 0.10*age) print function that prints all information related to the old book. D- Create the Testing class that has the main method and does the following: aa- Use the constructor to create instance of NewBook class and name it as new. Call compute_price function. bb- Use the constructor to create instance of usedBook class and name it used. Call compute_price function. cc- Print the related information of new and used objects using print functions. Use this following code: class Book: definit(self, title, isbn, authors, publisher, edition, published_year): self.title = title self.isbn = isbn self.authors = authors self.publisher = publisher self.edition = edition self.published_year = published_year # Setters defsetTitle(self,title): self.title = title defsetIsbn(self,isbn): self.isbn = isbn defsetAuthor(self,authors): self.authors = authors defsetPublisher(self, publisher): self.publisher = publisher defsetEdtion(self,edition): self.edition = edition defsetPublishedYear(self, published_year): self.published_year = published_year # Getters defgetTitle(self): returnself.title defgetIsbn(self): returnself.isbn defgetAuthor(self): returnself.authors defgetPublisher(self): returnself.publisher defgetEdtion(self): returnself.edition defgetPublishedYear(self): returnself.published_year defprint(self): print("Title: ",self.getTitle()) print("ISBN: ",self.getIsbn()) print("Authors: ",self.getAuthor()) print("Publisher: ",self.getPublisher()) print("Edition: ",self.getEdtion()) print("Published Year: ",self.getPublishedYear()) class NewBook(Book): definit(self, title, isbn, authors, publisher, edition, published_year, price): super().init(title, isbn, authors, publisher, edition, published_year) self.price = price defsetPrice(self,price): self.price = price defcalculate_price(self): returnself.price defprint(self): super().print() print("Price: ",self.calculate_price())

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

C- Create the sub class UsedBook that is derived from the super class Book and has the following instance variables, constructor, and functions:

title ( String)

isbn ( String)

authors (String)

publisher (String)

edition ( int)

published_year (int)

price_new (double) // the price of the book if it is new

age (int) // how old the book is in years

Constructor that takes all of the above variables as input parameters.

set/get functions

calculate_price method // the price is calculated as price_new * (1- 0.10*age)

print function that prints all information related to the old book.

D- Create the Testing class that has the main method and does the following:

aa- Use the constructor to create instance of NewBook class and name it as new. Call compute_price function.

bb- Use the constructor to create instance of usedBook class and name it used. Call compute_price function.

cc- Print the related information of new and used objects using print functions.

Use this following code:

class Book:

def__init__(self, title, isbn, authors, publisher, edition, published_year):

self.title = title

self.isbn = isbn

self.authors = authors

self.publisher = publisher

self.edition = edition

self.published_year = published_year

# Setters

defsetTitle(self,title):

self.title = title

defsetIsbn(self,isbn):

self.isbn = isbn

defsetAuthor(self,authors):

self.authors = authors

defsetPublisher(self, publisher):

self.publisher = publisher

defsetEdtion(self,edition):

self.edition = edition

defsetPublishedYear(self, published_year):

self.published_year = published_year

# Getters

defgetTitle(self):

returnself.title

defgetIsbn(self):

returnself.isbn

defgetAuthor(self):

returnself.authors

defgetPublisher(self):

returnself.publisher

defgetEdtion(self):

returnself.edition

defgetPublishedYear(self):

returnself.published_year

defprint(self):

print("Title: ",self.getTitle())

print("ISBN: ",self.getIsbn())

print("Authors: ",self.getAuthor())

print("Publisher: ",self.getPublisher())

print("Edition: ",self.getEdtion())

print("Published Year: ",self.getPublishedYear())

class NewBook(Book):

def__init__(self, title, isbn, authors, publisher, edition, published_year, price):

super().__init__(title, isbn, authors, publisher, edition, published_year)

self.price = price

defsetPrice(self,price):

self.price = price

defcalculate_price(self):

returnself.price

defprint(self):

super().print()

print("Price: ",self.calculate_price())

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