My First C++ Program
Build your first complete C++ program step by step. Start with Hello World and progressively add variables, user input, and calculations to create a practical rectangle area calculator.
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What You'll Build
A complete C++ program that interacts with users to calculate the area of a rectangle. You'll start with the classic Hello World program and progressively add new concepts until you have a fully functional calculator that demonstrates fundamental C++ programming skills.
Learning Objectives
- Write your first Hello World program
- Declare and initialize variables
- Use std::cout for output and std::cin for input
- Perform basic arithmetic operations
- Create interactive programs that communicate with users
Project Steps
Hello World - Your First C++ Program
Write the classic Hello World program - every programmer's first step into a new language.
Adding Variables to Store Information
Learn how to declare and use variables to store data in your programs.
Reading User Input with std::cin
Make your program interactive by reading input from users.
Performing Calculations with Arithmetic Operators
Learn to perform mathematical operations and calculations with user input.
Complete Rectangle Area Calculator
Build a complete, polished rectangle area calculator using all the concepts you've learned.
Project Repository
See the final version of this project on GitHub. Please report any issues there.
View on GitHub