James Tsillas pointed out that the specification 
of average leaves open two interpretations.
This refers to Question 2 in Hw 2.

The example below shows which one I meant.
A sub-container is considered as an item with its own total weight.

Feel free to change the *.cd file if needed.

If you have already implemented the other interpretation,
turn in that one with a description of your assumption for full credit.
The result for the second interpretation would be for the entire container:
(10 + 10 + 6 + 9 + 7 + 6)/6

-- Karl
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Both Java programs print out the running average as Weight-objects
are encountered during the traversal.
Change the programs so that they print
the average for each subcontainer.

Example:

For input:

(
apple 10 
  (
  apple 10
  kiwi   6
  10)
pear 9
  (
  apple 7
  10)
kiwi 6
50)

the program should print three partial results:
8 // average for first sub-container
7 // average for second sub-container
8 // (10 + 8 + 9 + 7 + 6)/5 = average for total container

A sub-container is considered as an item with its own total weight.