Python Coding challenge - Day 887| What is the output of the following Python Code?

 Code Explanation:

1. Class Definition

class Counter:

This defines a new class named Counter.

A class is a blueprint for creating objects, and can contain class variables, instance variables, and methods.

2. Class Variable

    count = 0

count is a class variable, shared among all instances of the class.

Every object of Counter accesses the same count.

Initially, count is set to 0.

3. Class Method Definition

    @classmethod

    def increment(cls):

@classmethod decorator defines a class method.

cls refers to the class itself (not an instance).

Class methods can access and modify class variables.

4. Modifying the Class Variable

        cls.count += 3

Inside the class method, cls.count accesses the shared class variable count.

It increments count by 3 each time the method is called.

Changes affect all objects of the class because count is shared.

5. Calling Class Method

Counter.increment()

Counter.increment()

The class method increment is called twice using the class name.

First call: count = 0 + 3 = 3

Second call: count = 3 + 3 = 6

6. Printing the Class Variable

print(Counter.count)

Accessing Counter.count prints the current value of the class variable count.

Output:

6

500 Days Python Coding Challenges with Explanation