How do you choose between while and for loop in C?
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How do you choose between while and for loop in C?
In while loop if initialization is done during condition checking, then initialization is done each time the loop iterate. In ‘for’ loop iteration statement is written at top, hence, executes only after all statements in loop are executed. In ‘while’ loop, the iteration statement can be written anywhere in the loop.
Why is my while loop not working?
The while loop is not run because the condition is not met. After the running the for loop the value of variable i is 5, which is greater than three. To fix this you should reassign the value before running the while loop (simply add var i=1; between the for loop and the while loop).
How do you explain a while loop?
A “While” Loop is used to repeat a specific block of code an unknown number of times, until a condition is met. For example, if we want to ask a user for a number between 1 and 10, we don’t know how many times the user may enter a larger number, so we keep asking “while the number is not between 1 and 10”.
What is a while loop in C?
C while loops statement allows to repeatedly run the same block of code until a condition is met. while loop is a most basic loop in C programming. while loop has one control condition, and executes as long the condition is true.
What are the differences between while loop and for loop?
Here are few differences:
| For loop | While loop |
|---|---|
| Initialization may be either in loop statement or outside the loop. | Initialization is always outside the loop. |
| Once the statement(s) is executed then after increment is done. | Increment can be done before or after the execution of the statement(s). |
Why is my while loop infinite?
Basically, the infinite loop happens when the condition in the while loop always evaluates to true. This can happen when the variables within the loop aren’t updated correctly, or aren’t updated at all. Let’s say you have a variable that’s set to 10 and you want to loop while the value is less than 100.
In which situation a looping error will not occur?
Explanation: The loop error will not occur until the condition inside the loop is false . The condition inside the for loop is checked every time as the loop starts run . If the condition is true the loop error will not occur .
Do While loop explanation in C?
The C do while statement creates a structured loop that executes as long as a specified condition is true at the end of each pass through the loop. The syntax for a do while statement is: If the value of the expression is “false” (i.e., compares equal to zero) the loop is exited.