Problem 2: Object-Oriented Programming

Learn how to use AI assistance to develop a program to manage the bank accounts of multiple users using object-oriented programming, focusing on class design and encapsulation.

Quick refresher

Another style of coding is object-oriented programming (OOP), in which we create and manipulate “classes” rather than focusing solely on sequences of instructions. OOP allows us to model real-world entities or concepts by grouping related data and behavior into classes, which makes code more modular, reusable, and easier to manage.

Let’s have a look at some of the core OOP features and concepts.

Classes

A class is like a blueprint for creating code versions of real-world entities. It defines the properties (attributes) and actions (methods) that the entity under consideration can have. An instance of a class is called an object. For example, a class could represent a car, and each object would be a specific car (e.g., a red Toyota Camry or a blue Honda Civic).

Inheritance

Inheritance allows one class to inherit the attributes and methods of another class. This promotes code reuse and allows for a hierarchical structure. For example, you might have a general class called Vehicle, and another class called Car could inherit from it, adding specific features.

Polymorphism

Polymorphism allows objects of different classes to be treated as objects of a common superclass. It also lets you define methods in a way that allows them to be used interchangeably by objects from different classes. For instance, you can define a method move() in both a Car and a Bike class, but call move() regardless of the object’s class type.

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