While Loops for Continuous Input
Explore how to implement while loops in C++ to handle continuous user input, using real-world projects like a step tracker. Understand loop conditions, the role of break statements, and input validation to create interactive programs that prompt users until they choose to stop.
The project
You’ve just made the decision to live a healthier life by tracking your daily steps.
Instead of entering your steps once and stopping, you want a system that keeps prompting you for your daily totals until you choose to finish. This is how a smartwatch works. Printing a single number, such as Steps today: 1,000, can be useful, but it doesn’t show your overall progress.
What you need is a loop, a system that keeps collecting your input until you tell it you’re done—and then reports the total steps you’ve taken so far.
Your project: Build a daily step tracker that collects steps day by day, adds them up, and stops only when the user chooses.
The programming concept
Imagine you’re a cashier. People keep coming up and asking you: How much does this cost?
You don’t just answer; you keep answering until the store closes. That’s what a while loop does: it keeps running while a condition is true. Let’s see the while loop in action. Try reading the code before pressing ...