Identifying classes from requirements in LLD - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to identify the main class representing a person in the system.

LLD

class [1]:
    def __init__(self, name, age):
        self.name = name
        self.age = age

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

AOrder

BCar

CPerson

DProduct

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing unrelated class names like Car or Product.

The main entity representing a person is best named Person.

2fill in blank

medium

Complete the code to add an attribute representing a unique identifier for the class.

LLD

class Order:
    def __init__(self, [1], amount):
        self.order_id = [1]
        self.amount = amount

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

Aprice

Border_id

Cquantity

Dcustomer

Attempts:

3 left

💡 Hint

Common Mistakes

Using attributes like price or quantity as identifiers.

The unique identifier for an order is typically called order_id.

3fill in blank

hard

Fix the error in the class definition by choosing the correct method name for initialization.

LLD

class Product:
    def [1](self, name, price):
        self.name = name
        self.price = price

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

A__init__

B__start__

C__create__

D__new__

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect method names like __start__ or __create__.

The constructor method in Python classes is __init__.

4fill in blank

hard

Fill both blanks to define a class with an attribute and a method to display it.

LLD

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

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ACustomer

Bemail

CProduct

Dprice

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing class names and attribute names incorrectly.

The class is Customer with an attribute email to display.

5fill in blank

hard

Fill all three blanks to create a class with an attribute, a method to update it, and a method to retrieve it.

LLD

class [1]:
    def __init__(self, [2]):
        self.[2] = [2]
    def update_[2](self, new_value):
        self.[2] = new_value
    def get_[2](self):
        return self.[2]

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

AAccount

Bbalance

Cemail

DCustomer

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing class and attribute names or using unrelated attributes.

The class Account has an attribute balance with update and get methods.