Programming with object oriented

Programming in object

What is

attributes

is a programming paradigm that relies on the concept of classes and objects

It is used to structure a software program into simple, reusable pieces of code

which are used to create individual instances of objects.

A class is an abstract used to create more specific, concrete objects.

Classes often represent broad categories, like Car or Dog that share attributes.

These classes define what attributes an instance of this type

Classes can also contain functions, called methods available only to objects of that type.

say we created a class, Car, to contain all the properties a car must have, color, brand, and model. We then create an instance of a Car type object, myCar to represent my specific car.

Class

These functions are defined within the class and perform some action helpful to that specific type of object.

Attributes are the information that is stored. Attributes are defined in the Class template.

When objects are instantiated individual objects contain data stored in the Attributes field.

The state of an object is defined by the data in the object’s attributes fields.

Methods

Methods represent behaviors. Methods perform actions

methods might return information about an object, or update an object’s data

The method’s code is defined in the class definition.

Concepts Importans

There are many object-oriented programming

languages including JavaScript, C++, Java, and Python.

Four Principles of OOP

child classes inherit data and behaviors from parent class

Inheritance

Encapsulation

Polymorphism

Abstraction

containing information in an object, exposing only selected information

only exposing high level public methods for accessing an object

many methods can do the same task

Inheritance

Inheritance allows classes to inherit features of other classes.

Put another way, parent classes extend attributes and behaviors to child classes.

Inheritance supports reusability

attributes

Abstraction means that the user interacts with only selected attributes and methods of an object.

Abstraction uses simplified, high level tools, to access a complex object.

Using simple things to represent complexity

Hide complex details from user