Podcast
Questions and Answers
What is a while loop used for?
What is a while loop used for?
To repeatedly execute a statement/block of statements as long as a given condition is TRUE.
What is considered TRUE in a while loop condition?
What is considered TRUE in a while loop condition?
Any nonzero value.
What must be done before using a variable in a while loop condition?
What must be done before using a variable in a while loop condition?
The variable must be initialized.
If the condition of a while loop is FALSE, the loop statements will be executed.
If the condition of a while loop is FALSE, the loop statements will be executed.
Signup and view all the answers
The update expression is executed if the condition of the while loop is TRUE.
The update expression is executed if the condition of the while loop is TRUE.
Signup and view all the answers
What happens when the condition in a while loop becomes FALSE?
What happens when the condition in a while loop becomes FALSE?
Signup and view all the answers
What is the basic syntax of a while loop in C?
What is the basic syntax of a while loop in C?
Signup and view all the answers
Study Notes
While Loop in C
- A while loop is used to repeatedly execute code as long as a condition is true.
- The condition can be a direct integer value, a variable, or an expression.
- Any non- zero value is considered true.
- If the condition contains a variable, the variable must be initialized before the loop starts.
- When the condition is true, the statements inside the loop are executed, including the update expression.
- When the condition is false, the loop terminates, and program control jumps to the next statement after the while loop.
- The condition is evaluated again after each iteration of the loop.
Example
- The example demonstrates a while loop that calculates the sum of all integers from 1 to a user-defined value.
- The user is prompted to "Enter integer number."
- The program uses a counter variable initialized to 1 and a sum variable initialized to 0.
- The loop continues as long as the counter is less than or equal to the user's input number.
- Inside the loop, the sum variable is updated by adding the current value of the counter.
- After each iteration, the counter variable is incremented by 1.
- The loop terminates when the counter becomes greater than the user's input number.
- The final value of the sum variable represents the sum of all integers from 1 to the input number.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz focuses on the concept of while loops in C programming. It covers the structure, usage, and evaluation of while loops, along with an example of summing integers. Test your understanding of how while loops work and their application in code.
