Why is my while loop is not working what wrong was in my code?

Question

What I want to do is the user put an
https://code.sololearn.com/cV6Ltet4w7TP/?ref=app

Answer 1

Is not working I changed to while(barcode! =f)

Answer 2

Still some this are sure I put the right loop can u check my code if is oky
https://code.sololearn.com/cV6Ltet4w7TP/?ref=app

Answer 3

I did for loop before it work but I need to use while loop so the used can enter f to finish the loops

Answer 4

Yes the barcode is inside of array that way I want to put while for so can run and if user enter then the loops will break

Answer 5

So I can't compare while with array

Answer 6

Oh this loop I used when I did for loop but I try in one as well but did work

Answer 7

I didn't get what u mean I had revised the loops course