OOP principles overview in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a class named Car.

Python

class [1]:
    pass

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Acar

BCar

Cvehicle

DAuto

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase names for classes.

Using unrelated names.

The class name should be Car with a capital C to follow Python naming conventions.

2fill in blank

medium

Complete the code to create an object my_car from the Car class.

Python

my_car = [1]()

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Acar

BAuto

Cvehicle

DCar

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase class names when creating objects.

Forgetting parentheses after the class name.

To create an object, call the class name Car followed by parentheses.

3fill in blank

hard

Fix the error in the method definition to correctly define the constructor.

Python

class Car:
    def [1](self, make):
        self.make = make

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A__init__

Binit

Cconstructor

Dinitialize

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'init' without underscores.

Using other names like 'constructor' or 'initialize'.

The constructor method in Python is named __init__ with double underscores before and after.

4fill in blank

hard

Fill both blanks to define a method display_make that prints the car's make.

Python

class Car:
    def __init__(self, make):
        self.make = make
    def [1](self):
        print(self.[2])

Drag options to blanks, or click blank then click option'

Adisplay_make

Bmake

Cmodel

Dshow_make

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong method names.

Printing an attribute that does not exist.

The method name should be display_make and it should print the make attribute.

5fill in blank

hard

Fill all three blanks to create a subclass ElectricCar that inherits from Car and adds a battery_size attribute.

Python

class [1]([2]):
    def __init__(self, make, battery_size):
        super().[3](make)
        self.battery_size = battery_size

Drag options to blanks, or click blank then click option'

AElectricCar

BCar

C__init__

DBatteryCar

Attempts:

3 left

💡 Hint

Common Mistakes

Not calling the parent constructor properly.

Using wrong class or method names.

The subclass is named ElectricCar, inherits from Car, and calls the parent's constructor using super().__init__(make).