Introduction to C++ Programming

Jun 27, 2024

Introduction to C++ Programming

Course Overview

  • Comprehensive course covering C++ from basics to advanced concepts
  • Suitable for beginners with no prior programming experience
  • Instructor: Mosh Hamadani, software engineer with 20+ years experience
  • Course includes step-by-step instructions and practical exercises

Importance of C++

  • Popular language for performance-critical applications
  • Used by companies like Adobe, Google, Microsoft, Netflix, and NASA
  • New versions released every three years (latest version: C++20)
  • C++ is known for efficiency and speed
  • Influential in the development of languages like C#, Java, JavaScript
  • High demand for C++ skills in the job market with competitive salaries

Learning C++

  • Focus areas: language syntax and Standard Library (STL)
  • STL includes data structures (lists, maps) and algorithms (searching, sorting)
  • No need to learn all features to write substantial programs
  • Course provides exercises and examples for hands-on learning

Setting Up Development Environment

  • Tools: Integrated Development Environments (IDEs)
    • Microsoft Visual Studio (Windows, free community edition)
    • Xcode (Mac)
    • CLion (cross-platform, free 30-day trial)
  • Course uses CLion, install from JetBrains website
  • IDE setup walkthrough

First C++ Program

  • Program structure: special main function, include directives, standard output (console)
  • Components: std::cout, #include, int main(), return 0
  • Example: Hello World program with detailed explanation

Basic C++ Concepts

  • Variables: used to store data, declared with type and name (e.g., int fileSize = 100;)
  • Constants: use const keyword to make variables immutable
  • Naming conventions: snake_case, PascalCase, camelCase
  • Mathematical expressions: addition, subtraction, multiplication, division, modulus
  • Increment/Decrement operators (++, --), prefix vs postfix

Input and Output

  • Reading input using std::cin
  • Example: simple calculator program (reading two numbers, outputting sum)
  • Exercise: temperature conversion from Fahrenheit to Celsius

Standard Library Functions

  • Inclusion of math functions from the C Standard Library (cmath, cstdlib)
  • Examples: floor(), pow(), random number generation with rand(), srand(), time()

Advanced IDE Tips

  • Customizing IDE appearance (e.g., using Dracula theme in CLion)

Course Structure

  • Multi-part series covering basics, intermediate and advanced concepts
  • Topics include data types, decision-making statements, loops, functions, pointers, arrays, strings, structures, enumerations, streams, classes, exceptions, templates, containers

Summary Notes and Resources

  • Downloadable cheat sheets and summary notes available
  • Encouragement to support and subscribe to the channel for more content

Final Exercise

  • Program to roll a dice, demonstrating random number generation and constant usage

Next Steps

  • Transition to the next section on fundamental data types in detail (numbers, bool, char, arrays, etc.)

Key Takeaways

  • C++ is versatile and highly relevant for performance-critical applications
  • Hands-on practice is crucial for mastering C++ concepts
  • Utilizing IDE tools can streamline the development process