Python Coding challenge - Day 912| What is the output of the following Python Code?

 

Code Explanation:

1. Class Definition

class Account:

This line defines a class named Account.

2. Constructor Method (__init__)

    def __init__(self):

        self.__balance = 500

__init__ is a constructor, automatically called when an object is created.

self.__balance is a private variable.

Python applies name mangling to variables that start with __.

Internally, __balance becomes:

_Account__balance

The value 500 is assigned to this private variable.

3. Object Creation

acc = Account()

An object named acc is created from the Account class.

The constructor runs, setting the private balance to 500.

4. Accessing Private Variable Using Name Mangling

print(acc._Account__balance)

Direct access like acc.__balance is not allowed.

Python allows access using name-mangled form:

object._ClassName__variableName

Here:

Class name → Account

Variable name → __balance

So:

acc._Account__balance

This prints the value stored in __balance.

5. Output

500

500 Days Python Coding Challenges with Explanation