A MutableBag is a
Collection which contains elements that are unordered and may contain duplicate entries. It adds a protocol for
adding, removing, and determining the number of occurrences for an item.
This package contains 3 bag implementations:
MutableBagwhich uses a hashtable as its underlying data store.
SynchronizedBag- a synchronized view of a bag.
UnmodifiableBag- an unmodifiable view of a bag.
This package contains one factory implementation: