This package provides utility routines for handling integer sets and maps.
The main classes are
IntSet which represents a set of 32-bit integers
IntIterator which is an iterator over a sequence of 32-bit
IntHashMap which is a map from 32-bit integers to arbitrary
IntToIntMap which is a map from 32-bit integers to 32-bit
The package name is a pun on the conventional use by mathematicians of the symbol Z to denote the set of all natural integers.
Michael H. Kay
9 January 2014