For the following class definition, what can be done to prot…

For the following class definition, what can be done to protect an attribute from being directly read or changed via dot notation by code outside the class that is using the class?  Select the best answer.class Date ( ):         def __init__ (self, month, day, year):                 self.month = month                 self.day = day                 self.year = year  

Review the definition below then check all the following sta…

Review the definition below then check all the following statements that are true regarding the code: class Cart (object):      cartNo = 1     def __init__(self, cust_name):              self.cartNo = Cart.cartNo                    Cart.cartNo += 1                    self.cust_name = cust_name                    self.cart = [ ]        def addGroc (self, item):                   self.cart.append(item)          def showCart (self):                    for i in self.cart:                              print(i)          def __str__ (self):                return ‘Cart# ‘ + str(self.cartNo) + ‘\ncustomer ‘ + self.cust_name  

What will be the display output of the following code? class…

What will be the display output of the following code? class Cart (object):          cartNo = 1        def __init__(self, cust_name):                    self.cartNo = Cart.cartNo                    Cart.cartNo += 1                    self.cust_name = cust_name                    self.cart = [ ]          def addGroc (self, item):                    self.cart.append(item)          def showCart (self):                    for i in self.cart:                              print(i)          def __str__ (self):                return ‘Cart# ‘ + str(self.cartNo) + ‘\ncustomer ‘ + self.cust_name     class Grocery ( ):    def __init__ (self, name):        self.name = name    def __str__ (self):        return self.name g1 = Grocery (‘milk’)c1 = Cart(‘Rob Varley’)c1.addGroc(g1)c1.addGroc(Grocery(‘eggs’))print (c1)

Extend the Book class created in the previous question by ad…

Extend the Book class created in the previous question by adding a setter method called “setISBN” that allows code outside the Book class to update or reset the ISBN for the Book object.  Before resetting the ISBN first validate it by ensuring the parameter provided is exactly 13 characters long and begins with “ISBN”.  If it does, update the Book object’s ISBN value using the same attribute name as the previous question.  Return the Boolean False if the provided ISBN does not pass the validation, otherwise reset the ISBN using the parameter and return True. Do not copy or define the entire Book class in this answer.  You only have to provide the method.