Hello World in C++

Introduction

C++ is a high-level, object-oriented programming language that is widely used for developing both system applications and game development. It is an extension of the C language and provides additional features such as object-oriented programming, exception handling, templates, and more.

In this article, we will look at the famous "Hello World" program in C++.

Hello World Program

In C++, the "Hello World" program is usually the first program that developers write. It is a simple program that prints the message "Hello, World!" on the screen. Here is the code snippet for the program:

#include <iostream>
using namespace std;

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

Let's break down this code snippet and understand what each line does.

• The first line #include <iostream> includes the standard input-output stream library in the program, which allows us to interact with the user and the machine.

• The using namespace std; statement is used to indicate that we will be using the standard namespace for the program. Namespaces help us avoid naming conflicts between our code and library code.

• The int main() function is the entry point of the program. It is mandatory in every C++ program and returns an integer value upon completion.

• The code cout << "Hello, World!" << endl; streams the message "Hello, World!" to the output stream cout. The endl statement is used to move the output to the next line.

• The return 0; statement indicates that the program has successfully executed and returns an integer value of 0 to the operating system.

Conclusion

Now that you've seen the "Hello World" program in C++, you can start exploring the language and its various features. C++ is a powerful language for developing system-level applications and games, and it's widely used in the industry. Happy coding!