University of Auckland School of Computer Science
Morris: Hash Tables
A description of hash tables and how they are created.
Massachusetts Institute of Technology
Mit: Open Course Ware: Java Preparation
This course provides an introduction to the Java programming language. It was designed for students at MIT that lack sufficient Java skills. The course covers a fairly wide range of Java topics in a compact form.
National Institute of Standards and Technology (NIST)
Dictionary of Algorithms and Data Structures: Hash Table
A description of the hash table data structure.
Wikimedia
Wikipedia: Hash Table
A Wikipedia description of the Hash Table data structure which is used for storing data in such a way that it can be retrieved rapidly.