User input while loop

Hi there, I am creating an algorithm to sort screw sizes. I need the user to input the screw size and whether or not to continue (until there are no more screws to sort). I cannot get the while loop to work correctly. I would like to ask the user "Continue? y/n: " and if the user types y, then the loop would continue, and if n, then the loop would stop and display my output. My problem is that I need to ask for the screw size and whether or not to continue every time the loop executes, so it would have to be in the while loop somehow, but that doesn't make sense because I need to initialize the while loop beforehand. Any help would be appreciated!

Thanks,

Chelsea

Virginia Tech

Answer 1

[Chinmay Anand]

x = []; % This will store screw Sizes

while true
    loop = input('Continue? (1/0) : '); % 1 to continue 0 to break loop
    if loop == 1        
        screwSize = input('Enter screw size : ');
        x = [x screwSize];
    else
        break
    end
end

sort(x)

Answer 2

[Walter Roberson]

while true
  ask for input
  if the input was not 'y'
    break
  end
  ask for a screw size
  do whatever
end