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<header> What is C++? </header>

C++ is a general purpose programming language and widely used now a days ' for competitive programming. It has imperative, object-oriented and generic programming features. C++ runs on lots of platform like Windows, Linux, Unix, Mac etc. C++ is an efficient and powerful language and finds wide use in various GUI platforms, 3D graphics and real-time simulations. Because of the inclusion of rich function libraries, working in C++ becomes simpler and convenient than C. Being object-oriented programming like Java, C++ provides the support of inheritance, polymorphism, encapsulation, etc. Unlike C, C++ allows exception handling and function overloading.

The “Hello World” program is the first step towards learning any programming language and also one of the simplest programs you will learn. All you have to do is display the message “Hello World” on the screen.

Let us now look at the program :

#include<iostream>
using namespace std;
int main()
{
cout〈〈"Hello World";
return 0;
}

C++ is an Object Oriented Programming Language.
The main pillars of Object Oriented Programming are :

• Objects and Classes
• Inheritance
• Polymorphism
• Abstraction
• Encapsulation