Introduction & Basic Syntax

C++ is a high-performance, compiled language. Every C++ program follows a specific boilerplate structure. To run code, you need a compiler (like GCC) that translates your text into machine-readable instructions.

The Breakdown

• Header Files (#include <iostream>): This pulls in the library needed for input and output.

• Namespace (using namespace std;): This tells the compiler we are using the standard C++ library shortcut so we don't have to type std:: before everything.

• The main() Function: This is the entry point. Every C++ program starts executing from here.

#include <iostream> // Header file for I/O
using namespace std; // Use standard namespace

int main() {
    // cout stands for "character output"
    // << is the insertion operator
    cout << "Hello, C++ World!" << endl; 

    return 0; // Standard way to signal the program finished successfully
}