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QUESTION 15 What is the __str__ method used for? a. It is used to determine if...

QUESTION 15

  1. What is the __str__ method used for?

    a.

    It is used to determine if a class attribute is a string.
    b.

    It is used to initiate string values during instantiation.
    c.

    It builds and returns a string representation of an object's state.
    d.

    It converts a string attribute within a class.

1 points   

QUESTION 16

  1. What method is known as a class's constructor, because it is run automatically when a user instantiates the class?

    a.

    __start__
    b.

    __init__
    c.

    __build__
    d.

    __main__

1 points   

QUESTION 17

  1. Unlike other object-oriented languages, Python does not support polymorphic methods.

    True

    False

1 points   

QUESTION 18

  1. What concept within object-oriented programming involves the restriction of the manipulation of an object's state by external users to a set of method calls?

    a.

    polymorphism
    b.

    data encapsulation
    c.

    inheritance
    d.

    data modeling

1 points   

QUESTION 19

  1. The str method is a good example of a polymorphic method that appears throughout Python's system of classes.

    True

    False

1 points   

QUESTION 20

  1. The attributes of an object are represented as what type of variables?

    a.

    self variables
    b.

    instance variables
    c.

    substance variables
    d.

    state variables
engineering   Computer-Science   
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Homework Answers

Answer #1

Dear Student ,

As per the requirement submitted above , kindly find the below solution.

Question 15:

Answer :c.It builds and returns a string representation of an object's state.

Explanation :In python __str()__ method returns string representation of object.

***********************************

Question 16:

Answer :b.__init__

Explanation :In python __init__ is invoked automatically when we create a new object.

***********************************

Question 17:

Answer :False

Explanation :Python supports polymorphism.

***********************************

Question 18:

Answer :b.data encapsulation

Explanation :data encapsulation in python involves the restriction of the manipulation of an object's state by external users to a set of method calls.

***********************************

Question 19:

Answer :False

Explanation :The str method is not a example of a polymorphic method that appears throughout Python's system of classes.

***********************************

NOTE : PLEASE FEEL FREE TO PROVIDE FEEDBACK ABOUT THE SOLUTION.

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