[Solved] What will be the output of this code?class Book: count = 0 def __init__(self): Book.count += 1 @classmethod def get_count(cls): return cls.count b1 = Book() b2 = Book() print(Book.get_count()) | Python

Python - Class Methods and Static Methods

What will be the output of this code?

class Book:
    count = 0

    def __init__(self):
        Book.count += 1

    @classmethod
    def get_count(cls):
        return cls.count

b1 = Book()
b2 = Book()
print(Book.get_count())

A0

B1

C2

DError

Step-by-Step Solution

Solution:

Step 1: Understand instance creation effect
Each time a Book instance is created, the class variable count increases by 1.
Step 2: Check method call and output
Two instances are created, so count becomes 2. The class method returns this count.
Final Answer:
2 -> Option C
Quick Check:
Class variable updated by instances = 2 [OK]

Quick Trick: Class variables shared; count increments with each instance [OK]

Common Mistakes:

Thinking count resets per instance
Confusing instance and class variables
Expecting error due to method call

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What will be the output of this code?

Step 1: Understand instance creation effect

Step 2: Check method call and output

Final Answer:

Quick Check:

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