Question

Language: Python

Implement the Book class as demonstrated below. You should not change the Book methods and implementation as provided. The docstrings in the template contain descriptions of each method.

>>> b=Book ( ' Code' , 'Charles Ptzold' 'Computing' , 2001)

>>> b

Book ( ' Code' , 'Charles Ptzold' 'Computing' , 2001)

>>> str (b)

' Code : Charles Ptzold: Computing: 2001 '

>>> b. getTitle ( )

' Code '

>>> b. getAuthor()

' Charles Ptzold'

>>> b. getPublicationYear( )

2001

>>> b*10

[Book( ' Code' , 'Charles Ptzold' 'Computing' , 2001) , Book( ' Code' , 'Charles Ptzold' 'Computing' , 2001) ,Book( ' Code' , 'Charles Ptzold' 'Computing' , 2001) ,Book( ' Code' , 'Charles Ptzold' 'Computing' , 2001) ,Book( ' Code' , 'Charles Ptzold' 'Computing' , 2001) ,Book( ' Code' , 'Charles Ptzold' 'Computing' , 2001) ,Book( ' Code' , 'Charles Ptzold' 'Computing' , 2001) ,Book( ' Code' , 'Charles Ptzold' 'Computing' , 2001) ,Book( ' Code' , 'Charles Ptzold' 'Computing' , 2001) ,Book( ' Code' , 'Charles Ptzold' 'Computing' , 2001)]

>>> b2=Book( ' Code' , 'Charles Ptzold' 'Computing' , 2001)

True

>>> b3=Book( ' Code' , 'Charles Ptzold' 'Computing' , 2003)

False

__________________________________________________________________________

import random

class Book(object):

    def __init__(self,title='',author='', genre='', yearOfPublication=0):

        'constructor.'

        pass

    def getTitle(self):

        'get book title'

        pass

    def getAuthor(self):

        'get book author'

        pass

    def getGenre(self):

        'get book genre'

        pass

    def getPublicationYear(self):

        'get publication year'

        pass

    def __mul__(self,count):

        'makes copies of the book and returns a list of all the copies'

        pass

   

    def __eq__(self,other):

        'Compares two books. returns True if all properites of a book are the same, False otherwise'

        pass

   

    def __str__(self):

        'string representation of Book'

        pass

   

    def __repr__(self):

        'python representation of Book'

        pass

Answer 1

import random

class Book(object):
def __init__(self,title='',author='', genre='', yearOfPublication=0):
'constructor.'
self.title=title
self.author=author
self.genre=genre
self.yearOfPublication=yearOfPublication
  
def getTitle(self):
'get book title'
return self.title

def getAuthor(self):
'get book author'
return self.author

def getGenre(self):
'get book genre'
return self.genre

def getPublicationYear(self):
'get publication year'
return self.yearOfPublication
  
def __mul__(self,count):
'makes copies of the book and returns a list of all the copies'
l=[]
for i in range(count):
l.append(Book(self.title,self.author,self.genre,self.yearOfPublication))
return l
  
def __eq__(self,other):
'Compares two books. returns True if all properites of a book are the same, False otherwise'
if(self.title==other.getTitle()):
if(self.author==other.getAuthor()):
if(self.genre==other.getGenre()):
if(self.yearOfPublication==other.getPublicationYear()):
return True
return False

def __str__(self):
'string representation of Book'
return self.title+" : "+self.author+": "+self.genre+": "+str(self.yearOfPublication)

def __repr__(self):
'python representation of Book'
return "Book ( '" +self.title+"' , '"+self.author+"' '"+self.genre+"' , "+str(self.yearOfPublication)+")"

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