C++ programming language

C++

What is C++?

·        C++ is a multi-paradigm programming language that supports Object-Oriented Programming (OOP).

·        C++ was developed by Danish computer scientist Bjarne Stroustrup at Bell Labs in 1983.

·        C++ is an extension of C Programming language.

Object-Oriented Approach

The approach of object-oriented is to focus on capturing the structure and behavior of information systems into small modules that combines both data and process. The main aim of Object-Oriented Design (OOD) is to improve the quality and productivity of system analysis and design by making it more usable.

Why do we learn C++?

• C++ programming language is used to develop games, desktop apps, operating systems, browsers, and so on because of its performance.
• After learning C++, it will be much easier to learn other programming languages like Java, Python, Javascript, etc.
• C++ helps you to understand the internal architecture of a computer, how computer stores data and retrieves information.

Structure of C++

Header file declaration section

Global declaration section

Class declaration and method definition section

Main function

Method definition section

Features of OOPs.

1- Encapsulation

2- Abstraction

3- Relationships

      Types of relationships

•    Aggregation

•   Association

•  Generalization

4- Inheritance

5- Polymorphism and Dynamic Binding

Elements of OOPs.

1.     Objects

2.     Attributes

3.     Behavior

4.     Class

5.     Methods

6.     Message

• Let’s begins with a Simple Program

#include<iostream>                   // header file

int main( )                         //main function

{

  cout<<”HELLO WORLD”;             // output statements

}