Python OOPs Task: Create a Simple Bank Account System

[codewithdhruba01]

Problem: Implement a Simple Bank Account System Using OOPs in Python

Objective:
Use Object-Oriented Programming concepts in Python to build a basic bank account system.

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✅ Concepts to Implement:

• Encapsulation
• Inheritance
• Polymorphism
• Abstraction (optional)

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🛠️ Requirements:

1. Create a base class BankAccount with the following:

   • Attributes: account_holder, balance

   • Methods:

     • deposit(amount)
     • withdraw(amount)
     • display_balance()

2. Encapsulation:

   • Make balance a private variable using double underscore (__balance)
   • Use getter method if needed

3. Inheritance:

   • Create a subclass SavingsAccount that inherits from BankAccount
   • Add an attribute: interest_rate
   • Method: apply_interest() which updates balance

4. Polymorphism:

   • Override display_balance() in the subclass to also show interest rate

5. Abstraction (Optional):

   • Use the abc module to create an abstract base class if needed

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Example Usage:

acc = SavingsAccount("John Doe", 1000, 0.05)
acc.deposit(500)
acc.withdraw(200)
acc.apply_interest()
acc.display_balance()

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Expected Output:

Deposited 500
Withdrawn 200
Interest applied
Account Holder: John Doe
Balance: 1365.0
Interest Rate: 5.0%

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📌 Acceptance Criteria:

• Code must be in Python.
• Step : Go to Learn-python-language Create a Folder : then Start a Project
• Follow clean naming and formatting.

Checklist:

• Create BankAccount class
• Implement encapsulation with private balance
• Inherit SavingsAccount from BankAccount
• Override a method (polymorphism)
• (Optional) Use abstract class
• Add example usage and test the output

[Daniyal0100101]

I’d like to work on this – can I take it?