While Loop
A while loop is a fundamental control flow construct in programming that repeatedly executes a block of code as long as a specified condition remains true. It is used for iterative tasks where the number of iterations is not known in advance, such as processing data until a sentinel value is encountered or waiting for a user input. This loop checks the condition before each iteration, and if the condition evaluates to false initially, the code block may not execute at all.
Developers should learn while loops for scenarios requiring indefinite iteration, such as reading input until a termination signal, implementing game loops, or handling dynamic data streams. They are essential in low-level programming, algorithm design (e.g., searching or sorting), and when working with real-time systems where conditions change unpredictably. Mastery of while loops helps in writing efficient, flexible code that adapts to runtime conditions.