Let's try to solve two problems: 

a) read a file and calculate then report the following things: 

 -- the number of lines
 -- the number of words 
 -- the number of characters
 -- the average number of words, characters per line 

b) write a program to read numbers from the user, one per line, until the user types "done". 

After each number entered by the user the program prints: 

  -- the count of numbers entered thus far
  -- the sum of all the numbers entered thus far 
  -- the average of all the numbers entered thus far

Very important: if the user does not enter a valid number per se the program should not crash. 

Finally, we will examine the benefits of developing object-oriented programs. 

We will post the code here after class.