I have entered this line of code for exercise 6-8 saying to
Write an application that allows a user to enter any number of
student quiz scores, as integers, until the user enters
99. If the score entered is less than 0 or more
than 10, display Score must be between 10 and 0
and do not use the score. After all the scores have been entered,
display the number of valid scores entered, the highest score, the
lowest score,...