acceptableInput doesn't ensure 4 digits which is why I used the length check, and there is no way to specify minimum length. Using 1000 as a bottom would not allow a 0 in the first digit so do not think that works.
acceptableInput doesn't ensure 4 digits which is why I used the length check, and there is no way to specify minimum length.
Using 1000 as a bottom would not allow a 0 in the first digit so do not think that works.