oop-encapsulation

What problem does it solve?

Promote information hiding and controlled access to object internals to reduce coupling and improve maintainability.

Core Features & Use Cases

• Private state: Restrict access to internal fields.
• Defensive mutations: Validate and control state changes.
• Public interfaces: Expose stable APIs for interaction.

Quick Start

Define a class with private fields and public methods that enforce invariants, and demonstrate with a simple deposit/withdraw example.