Python Coding challenge - Day 866| What is the output of the following Python Code?

 

Code Explanation:

1. Class Definition

class Counter:

A class named Counter is created.

This class will contain a class variable and a class method.

2. Class Variable

    count = 1

count is a class variable.

It belongs to the class itself, not to individual objects.

Initial value is 1.

All instances and the class share the same variable.

3. Class Method Definition

    @classmethod

    def inc(cls):

        cls.count += 2

@classmethod means the method receives the class (cls), not an object (self).

Inside the method:

cls.count += 2 increases the class variable by 2 each time the method is called.

4. First Call to Class Method

Counter.inc()

Calls the class method inc().

count was 1, now increased by 2 → becomes 3.

5. Second Call to Class Method

Counter.inc()

Another call to the class method.

count was 3, now increased by 2 → becomes 5.

6. Printing the Final Value

print(Counter.count)

Accesses the class variable count.

Current value is 5.

Output:

5

Final Output

5

400 Days Python Coding Challenges with Explanation