Deck 11: Inheritance

Question 1

Of the two classes Cola and Soda, which would most likely be the subclass?

A) Cola
B) Soda
C) Both
D) Either

Answer 1

A

Question 2

In the following line of code, what is the name of the base class?
Class Male(Human):

A) Male
B) Human
C) Either
D) Incorrect code

Answer 2

B

Question 3

An 'is a' relationship exists between a grasshopper and a bumblebee.

Answer 3

False

Question 4

What does a subclass inherit from a superclass?

A) Instances and attributes
B) Data and methods
C) Methods and instances
D) Attributes and methods

Question 5

Base classes are also called _____.

A) superclasses
B) derived
C) subclasses
D) classes

Question 6

Each subclass has a method named __init__ that overrides the superclass's __init__.

Question 7

New attributes and methods may be added to a subclass.

Question 8

Examine the following piece of code:
Class Potato (Vegetable):
In a UML diagram, what would the open arrowhead point to?

A) Potato
B) Vegetable
C) class
D) Potato(Vegetable)

Question 9

When a class inherits another class, it is required to use all the data attributes and methods of the superclass.

Question 10

It is not possible to indicate inheritance in a UML diagram.

Question 11

When there are several classes that have many common data attributes, it is better to write a(n) _____ to hold all the general data.

A) superclass
B) subclass
C) object
D) method

Question 12

In the following line of code, what is the name of the subclass?
Class Rose(Flower):

A) Rose
B) Flower
C) Either
D) Incorrect code

Question 13

In a UML diagram, what does the open arrowhead point to?

A) Superclass
B) Subclass
C) Object
D) Method

Question 14

_____ allows a new class to inherit the members of the class it extends.

A) Encapsulation
B) Domain
C) Methods
D) Inheritance

Question 15

Which of the following is the correct syntax for defining a class dining which inherits from class furniture?

A) class furniture(dining)
B) class dining(furniture)
C) class furniture(dining):
D) class dining(furniture):

Question 16

What is the relationship called in which one object is a specialized version of another object?

A) Parent-child
B) Node
C) Is a
D) Class

Question 17

Which method can you use to determine whether an object is an instance of a class?

A) isinstance
B) isclass
C) isobject
D) isinheritance

Question 18

What concept involves a superclass and a subclass?

A) Polymorphism
B) Inheritance
C) Encapsulation
D) Methods

Question 19

What gives a program the ability to call the correct method depending on the type of object that is used to call it?

A) Polymorphism
B) Inheritance
C) Encapsulation
D) Methods

Question 20

In an inheritance relationship, what is a specialized class called?

A) Superclass
B) Subclass
C) Object
D) Method

Question 21

Polymorphism works on any two class methods that have the same name.

Question 22

New attributes and methods may be added to a subclass, which makes it a(n) _______________ version of the superclass.

Question 23

In an inheritance relationship, a television is a(n) _______________ of the electronics class.

Question 24

The term _______________ refers to an object's ability to take different forms.

Question 25

_______________ allows subclasses to have methods with the same names as methods in their superclasses.

Question 26

A subclass may not override any method other than the __init__ method.

Question 27

In a UML diagram depicting inheritance, you only write the name of the subclass.

Question 28

_______________ is used to create an 'is a' relationship among classes.

Question 29

A superclass inherits attributes and methods from its subclasses without any of them having to be rewritten.

Question 30

Superclasses are also called _______________ classes.

Question 31

The _______________ function determines whether an object is an instance of a specific class, or an instance of a subclass of that class.

Question 32

A subclass is also called a(n) _______________ class.

Question 33

In an inheritance relationship, the extended class is called the _______________.

Question 34

When a subclass method has the same name as a superclass method, it is often said that the subclass method _______________ the superclass method.

Question 35

One of the ingredients of polymorphic behavior is the ability to define a method in a subclass, and then define a method with the same name in a superclass.