Question

what is difrnce btw for and while loop?how they work?

Answer 1

A while loop is a lot like an IF statement. but instead of evaluating the value of a statement once like an IF statement, a while loop evaluates it many times until the loop condition is met.

For loops are really very similar. The way I have differentiated them has been to think about for loops over more defined ranges:

for x in range (0,100, 2):
Print X

Whereas the while loop would be similar but would look for a condition to exit the loop:

x = 0
while (x > 100):
Print (x)
x += 2

I hope this helps.

Answer 2

One key difference is that the for loop goes some set number of times and this must be determined before entering the loop. A while loop has no predetermined end. Just a test. So you could do something like `while (RUNNING==true)` and have `RUNNING=true` be right before this. Then, if the user presses q, do `RUNNING=false` Then this would run until the user pressed q to quit.

Answer 3

for gives u a two side range let is starts from here takes a step of this one size and end here
whereas while just take some condition that where to end

Answer 4

thankyou for your help.