While Loop in C++ (Input Validation + While vs For Loops Differences + Generic Function)
Автор: Real Programming Skool (RPS)
Загружено: 2026-03-14
Просмотров: 3
Описание:
In this C++ lesson, learn while loops and when to use them vs for loops.
Key points:
For loop: When you know the exact number of iterations (print 1‑5).
While loop: For unknown iterations + input validation (force positive numbers or range 18‑45).
Create a generic function readNumberInRange(min, max) that loops until valid input.
Reuse the function anywhere by passing different ranges.
Examples:
Read positive number only (no negatives).
Read age between 18 and 45.
Why while loop is perfect for validation.
This's lesson No.42 of Beginner Track – Course 2: Programming Concepts using C++ (part 1)
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