PYTHON PROBLEM 155 · Starter

Model a bank account: Normal transactions

Apply deposits and withdrawals to one account object.

encapsulation · stateencapsulationstate

PROBLEM OVERVIEW

What this Python exercise asks you to practise

This scenario tests model a bank account. It belongs to the Classes and Object-Oriented Python roadmap and uses the encapsulation · state pattern.

Objects, attributes, methods, constructors, composition, and basic inheritance.

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SKILL TO CARRY FORWARD

Pattern relevance

This exercise strengthens encapsulation · state. Be ready to explain the input, the rule, the boundary cases, and why the chosen approach is appropriate.