“Hello, World!” Program

Introduction

A “Hello, World!” program prints the “Hello, World!” in the output screen. Mostly every new programmer does this program for an introduction to Coding.

Following is the C++ “Hello, World!” program:

// Your First C++ Program


#include <iostream>


int main() {
    std::cout << "Hello, World!";
    return 0;
}

Output: 

Hello, World!
 

You practice by yourself with the help of online c++ compiler.
Let us see each statement individually:

1. // Your First C++ Program: The lines which start with “//” are comments. These are the lines which are ignored by the C++ compiler.
    
2. #include <iostream>: It is a preprocessor directive used to include files in our program. In our current program, we are including the contents of <iostream> file. 
    
3. std::cout << "Hello, World!";: This statement is used to print the String inside the quotation marks(“ “). In our current program, we are printing Hello, World!.
    
4. return 0;: It is the Exit status of the program. The program terminates after this statement.

FAQs:

1. What is a “Hello, World!” program?
   A “Hello, World!” program prints the “Hello, World!” in the output screen. Mostly every new programmer does this program for an introduction to Coding.
    
2. What is std::cout?
   This statement is used to print the String inside the quotation marks(“ “). In our current program, we are printing Hello, World!.