The 1st C++ program

A simple C++ program to display "Hello, World!" on the screen. Since, it's a very simple program, it is often used to illustrate the syntax of a programming language. 

I recommend to download : Dev C++ 

This application is used to program in C and C++ 

Write down the program down below on a new source file , to do that click on File , New , Source File 

When you are done with writing the program , press on execute then compile & run , to compile the written code.

INPUT :

 

#include <iostream>

using namespace std;

int main() 

{

    cout << "Hello, World!";

    return 0;

}

OUTPUT :

 

Hello, World!

Meanings :

• iostream is a header file for  input/output streams 
•  std is an abbreviation of standard. std is the standard namespace. cout, cin and a lot of other things are defined in it 
•  Int is short for "integer." Int is a fundamental type built into the compiler and used to define numeric variables holding whole numbers. 
• Every C++ program starts from the main() function.
• The cout is the standard output stream which prints the "Hello, World!" string on the monitor.
• The return 0; is the Exit status" of the program.

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