Python Coding challenge - Day 829| What is the output of the following Python Code?

 

Code Explanation:

Defining a Class

class Counter:

This line starts the definition of a class named Counter.

A class is like a blueprint for creating objects (instances).

In this case, it will be used to count how many objects are created.

Creating a Class Variable

    total = 0

total is a class variable, shared by all instances of the class.

It is initialized to 0.

Every time a new object is created, we’ll increase this counter.

Defining the Constructor

    def __init__(self):

__init__() is the constructor method — it automatically runs each time a new object is created.

self refers to the specific instance of the class being created.

Updating the Class Variable

        Counter.total += 1

Each time the constructor runs, we add 1 to the class variable Counter.total.

This means every time we make a new object, the total counter increases by one.

Creating Instances (Objects)

a = Counter(); b = Counter(); c = Counter()

This line creates three separate objects of the Counter class: a, b, and c.

Each time an object is created:

The __init__() method runs.

Counter.total increases by 1.

So after all three are created:

Counter.total = 3

Printing the Result

print(Counter.total)

This prints the final value of the class variable total.

Since three objects were created, the output will be:

Final Output

3

700 Days Python Coding Challenges with Explanation