CPP Tutorial

INTRODUCTION TO C++

👨‍💻 Introduction to C++

C++ is a powerful, high-performance programming language developed by Bjarne Stroustrup as an extension of the C language. It supports both procedural and object-oriented programming, making it a popular choice for building software systems, games, operating systems, and real-time applications.

📌 Fun Fact: C++ is often called “C with Classes” because it adds object-oriented features to C.

✨ Key Features of C++

Fast and Efficient: Great for performance-critical applications.
Object-Oriented: Supports classes, inheritance, polymorphism, etc.
Platform Independent: C++ programs can run on different platforms with minimal changes.
Rich Standard Library: Includes built-in functions and data structures.
Compiled Language: Converts code into machine-level instructions for speed.

📜 Basic Structure of a C++ Program

#include <iostream>
using namespace std;

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

📘 Explanation:

#include <iostream>: Includes the input-output library.
using namespace std;: Lets you use standard functions like cout without prefixing with std::.
int main(): Starting point of every C++ program.
cout: Prints text to the screen.

🛠 How to Run a C++ Program

Write code in a file with .cpp extension.
Use a compiler like g++ (GCC) to compile the file.
Run the output executable to see the result.

💡 Quick Tip: You can use online compilers like Programiz or JDoodle to test your code instantly without installing anything.

📱 Beginner-Friendly Practice Task:

Try modifying the “Hello, World!” message to display your name. Example:

cout << "Hello, I am John Doe!";

🔚 Conclusion

C++ is a versatile language that gives you full control over system resources and code structure. It’s a great foundation for understanding both procedural and object-oriented programming. In upcoming lessons, you'll learn about variables, data types, functions, loops, and more!

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