Python Zybooks Module 13 - Inheritance

_____ is a concept where the derived class acquires the attributes of its base class.

• Encapsulation

• Inheritance

• Abstraction

• Polymorphism

Class Healthcare has the methods Pharmacy() and Labs(). Class Hospitals is derived from Healthcare and has the methods Doctor(), Patients(), and Nurses(). Afterh = Hospitals()executes, how many different methods can object h call, ignoring constructors?

• 7

• 5

• 3

• 4

Identify the base class for the other classes in the given statement.

Planet is derived from SolarSystem; SolarSystem is derived from Galaxy; Galaxy is derived from Universe.

• SolarSystem

• Planet

• Galaxy

• Universe

Which statement is not true?

• Inheritance tree describes the hierarchy between base and derived classes.

• A derived class can access the attributes of all of its base classes via normal attribute reference operations

• A derived class inherits the attributes of the base class, and then adds additional attributes

• When adding a new derived class, a programmer has to change the base class as well.

A derived class may define a method having the same name as the base class means that:

• a derived class method overrides the method of the base class

• a base class method overrides the method of the derived class.

• the functionality of the method is the same in both derived and base class.

• a derived class method overloads the method of the base class.

Identify which relationship of the everyday items is a has-a relationship.

• Baseball/Sport

• Truck/Vehicle

• University/Library

• Aspirin/Medicine

Identify which relationship of the everyday items is an is-a relationship.

• Basketball/Sport

• Car/Transmission

• Calculator/Display

• Pizza/Topping

Which is an example of inheritance?

• class Library:

  def __init__(self):

  self.name = ''

  class Books:

  def __init__(self):

  self.number = ''

  class Pages:

  def __init__(self):

  self.number = ''

  self.words = ''

  self.paragraphs = ''

• class Car:

  def __init__(self):

  self.type = ''

  class Boat:

  def __init__(self):

  self.model = ''

  class Engine:

  def __init__(self):

  self.model = ''

  self.type = ''

  self.power =''

• class Garden:

  def __init__(self):

  self.name = ''

  class Trees:

  def __init__(self):

  self.name = ''

  self.type = ''

  self.number = ''

• class Elements:

  def __init__(self):

  self.name = ''

  class Metal(Elements):

  def __init__(self):

  Elements.__init__(self)

  self.mass = ''

  self.atomicNumber = ''

  class NonMetal(Elements):

  def __init__(self):

  Elements.__init__(self)

  self.mass = ''

  self.atomicNumber = ''

_____ are classes that provide additional behavior to methods and are not themselves meant to be instantiated.

• Derived classes

• Mixin classes

• Base classes

• Inheritance classes

Select an assertion method that checks if a string is not a substring of another string.

• assertIsNot

• assertFalse

• assertNotIn

• assertNotEqual