C++ First Hello World Program with explanation for beginner

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C++ Hello World Program

Here’s a simple “Hello, World!” program in C++:

#include <iostream>
using namespace std;

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

Let’s break down what’s happening here:

The first line #include <iostream> is a preprocessor directive that tells the compiler to include the iostream library. This library provides input/output functionality, such as printing output to the console.
The int main() function is the entry point of the program. This is where the program starts executing.
The line std::cout << "Hello, World!" << std::endl; prints the text “Hello, World!” to the console. The << operator is used to write data to the console, and std::endl is used to insert a newline character after the text.
The return 0; statement ends the main function and returns the value 0 to the operating system. A return value of 0 indicates that the program executed successfully.

To run this program, you will need a C++ compiler installed on your system. Once you have a compiler installed, save the code above in a file with a .cpp extension (for example, helloworld.cpp). Then, open a terminal or command prompt, navigate to the directory where the file is saved, and enter the following command to compile the program: