Which loop continuously executes until a specific condition is met?

The while loop is designed to continuously execute its body of code as long as a specified condition evaluates to true. This loop checks the condition before each iteration, meaning that if the condition is false at the start, the loop body will not execute at all. This behavior is particularly useful in situations where you don't know in advance how many iterations will be needed to meet the exiting condition, such as waiting for user input or monitoring sensor readings until a desired state is reached.

In contrast, the other loops have different characteristics. For example, while the repeat loop and do until loop also allow for condition-based execution, they specifically require a condition that is evaluated at the end of the loop's body, which means they will always run at least once. The for loop, on the other hand, is typically used for a set number of iterations, determined at the start based on a predefined counter or range. Thus, the while loop is the appropriate choice for scenarios that require ongoing checks for a condition to dictate execution.