C+ + Tutorial: how to do input validation using while loops. @ProfessorHankStalica

Professor Hank Stalica | C+ + Tutorial: how to do input validation using while loops. @ProfessorHankStalica | Uploaded 2 years ago | Updated 2 hours ago
I demonstrate how to perform input validation in C++ using a while loop. This is a tutorial for beginners introducing the topic as covered in our textbook.

In other words, we're going to check user input with a while loop.

2:18 ⇒ Theory
3:39 ⇒ Get to the code

Here's the basic algorithm:

Ask for some input
while the input is something we don't like:
Tell the user there something wrong
Ask for the input again

Continue on with the rest of the program

We'll cover the logic, write a sample program, and see what happens if you use if (bad) instead of while (good), a common mistake made by new students. Sample programs are written using Visual Studio 2022.

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C++ Playlist:
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while loops:
https://youtu.be/qWcHvXdeDlA

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