pWhen you first
begin to use a bag, the bag will be empty.
pWe count on this
to be the initial
state of any bag that we use.
THIS BAG
IS
EMPTY.
This bag will be our first
example of a Collection class, which is a class where each object can contain
a collection of items (such as numbers).One of the important facets of a Collection class is that each object
begins in a known configuration.In
the case of a bag, we will count on each bag being initially empty.This is called the initial state of a bag.
