Introduction to C++ in 2025: Where to Start for Beginners

Introduction to C++: Where to Start in 2025

C++ remains one of the most powerful and in-demand programming languages. In 2025, it still holds leading positions in game development, high-load systems, financial applications, and embedded software. If you have decided to start your journey in IT or expand your technology stack, this language is an excellent choice. In this article, we will break down where a beginner should start learning C++, which tools to use, and write our first programs.

Why is C++ Relevant in 2025?

Despite the growing popularity of Python and Rust, C++ remains indispensable where performance and memory control are critical. Modern standards (C++17, C++20, C++23) make it safer and more convenient without sacrificing speed. C++ is used in:

• Game engines (Unreal Engine, Unity for C# is partially based on C++)
• Operating systems (Windows, Linux)
• Databases (MySQL, MongoDB)
• Financial systems (algorithmic trading)
• Robotics and IoT

Learning C++ provides a deep understanding of how computers work, memory management, and algorithms, which will be useful when learning any other language.

Step 1: Installing a Development Environment

To write and run C++ code, you will need a compiler and an editor. In 2025, the best choice for a beginner is Visual Studio Community (Windows) or VS Code with a set of extensions (cross-platform).

Option 1: Visual Studio (recommended for Windows)

• Download Visual Studio Community from the official website
• During installation, select the "Desktop development with C++" component
• After installation, create a new project: "Console Application"

Option 2: VS Code + MinGW (cross-platform)

• Install VS Code
• Install the MinGW-w64 compiler (for Windows) or g++ (for Linux/macOS)
• Add the C/C++ and Code Runner extensions in VS Code

After setup, verify that the compiler works:

g++ --version

Step 2: First Program in C++

Traditionally, we start with "Hello, World!". Create a file main.cpp and write the following code:

#include <iostream>

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

Let's break down what is happening here:

• #include <iostream> — include the input/output library
• int main() — the main function where program execution begins
• std::cout — object for outputting text to the console
• << — operator for passing data into the stream
• std::endl — newline
• return 0; — informs the system that the program completed successfully

To compile and run, execute in the terminal:

g++ main.cpp -o hello./hello   # Linux/macOShello.exe # Windows

Step 3: Basics of C++ Syntax

Let's look at key constructs that will be useful from the first days.

Variables and Data Types

#include <iostream>#include <string>

int main() {    int age = 25;          // integer number    double price = 99.99;  // floating-point number    char grade = 'A';      // single character    bool isStudent = true; // boolean value    std::string name = "Anna"; // string (requires #include <string>)

    std::cout << "Name: " << name << ", age: " << age;    return 0;}

Conditional Statements

int score = 85;if (score >= 90) {    std::cout << "Excellent!";} e