Chapter 5: Problem 7

Does the Do-While loop test its condition before or after it performs an iteration?

Short Answer

Expert verified

Answer: In a Do-While loop, the condition is tested after performing an iteration.

Step by step solution

Understanding Do-While loops

A Do-While loop is a control flow statement that allows code to be executed repeatedly as long as a certain condition is met. Unlike the more common While loop, the Do-While loop guarantees that the code inside the loop will run at least once, as the condition is checked after the completion of the loop body. The syntax for a Do-While loop is as follows: do { // Code to be executed } while (condition);

Identifying the loop's condition check

As mentioned, the primary difference between a Do-While loop and a regular While loop is when the condition is checked. In a Do-While loop, the condition is checked after the loop body has been executed, ensuring that the code inside the loop runs at least once. In contrast, a While loop checks the condition before entering the loop body, and if the condition is false from the start, the code inside the loop will never be executed.

Answering the question

Based on our understanding of Do-While loops and when the condition is checked during loop execution, we can conclude that the Do-While loop tests its condition after it performs an iteration.

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Does the Do-While loop test its condition before or after it performs an iteration?

Short Answer

Step by step solution

Understanding Do-While loops

Identifying the loop's condition check

Answering the question

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