Question

1. Sum = 0
2. Count = 0
3. Display prompt user
3. Read number
4. While more numbers do
  a. Sum = sum + number
b. Count = count + 1
c. Display prompt to user
d. Read number
 
6. If count = 0 then
  b. Display message “ unable to calculate average since no numbers were entered
else
  c. Average = sum / count
d. Display average

Answer 1

While more numbers do a. Sum = sum + number b. Count = count + 1 c. Display prompt to user d.

Answer 2

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First make a double variable in which the number is saved. Then divide that number by 10 in a loop to make the number continuously lose a digit, until it is a 1-digit number. cast the double variable to int to round it down. The result will then be the previously first decimal digit.

To count the number of digits in a number we have to divide that number by 10 until it becomes 0 or less than 0. If you divide any number by 10 and store the result in an integer then it strips the last digit.

hope it helps you..