Introduction to C++ – The Power of Object-Oriented Programming

C++ is an extension of C that brings powerful object-oriented programming (OOP) capabilities. It is widely used in game development, system programming, competitive coding, and high-performance applications. Let’s explore the fundamentals of C++!

Why Learn C++?

? Faster execution & high performance

? Supports both procedural & object-oriented programming

? Used in game engines, operating systems, and databases

? Provides direct hardware access with memory management

? Standard Template Library (STL) for efficient coding

Setting Up Your C++ Environment

To start coding in C++, you need a compiler:

• GCC (MinGW) for Windows – Setup Guide
• Clang for macOS
• MSVC for Windows (Comes with Visual Studio)

Practice online using W3Schools.com !

?? Writing Your First C++ Program

#include <iostream>
using namespace std;

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

?? #include <iostream> – Standard input-output library

?? using namespace std; – Simplifies usage of standard library

?? cout – Prints output to the console

Explore more at GeeksforGeeks .

Core Concepts of C++

• Variables & Data Types – int, float, char, bool, double
• Operators – Arithmetic, logical, relational, bitwise
• Control Structures – if-else, loops (for, while, do-while)
• Functions – User-defined & built-in functions
• Arrays & Strings – Handling collections of data efficiently
• Pointers & References – Memory management & optimization
• Dynamic Memory Allocation – malloc, new, delete
• File Handling – Reading and writing files using fstream

Learn more at Tutorialspoint .

Object-Oriented Programming (OOP) in C++

C++ supports OOP, which helps in building scalable and reusable code.

?? Classes & Objects – Blueprint for creating objects

?? Encapsulation – Data hiding for security

?? Inheritance – Reuse properties of another class

?? Polymorphism – One interface, multiple implementations

?? Abstraction – Hiding complex implementation details

Example of a simple C++ class:

class Car {
public:
    string brand;
    void honk() {
        cout << "Beep Beep!";
    }
};

int main() {
    Car myCar;
    myCar.brand = "Toyota";
    myCar.honk();
    return 0;
}        

Learn more about OOP at Programiz

Standard Template Library (STL)

STL provides powerful data structures and algorithms:

• Containers – Vectors, Lists, Queues, Stacks, Maps
• Algorithms – Sorting, Searching, Manipulation
• Iterators – Used to traverse elements

Explore more on STL at GeeksforGeeks .

What’s Next?

In upcoming posts, we’ll cover:

? Advanced OOP concepts

? Memory management with pointers

? Real-world C++ projects

? Multithreading & Concurrency

? Exception Handling

Start coding today on OnlineGDB!

Stay tuned for more in Code Chronicles by Nidhi! ( Nidhi Krishna P V )