Chapter 10, “The java.util Package”
The classes and interfaces of the Collections API provide an implementation-independent framework for manipulating collections of objects.
The Vector class provides the capability to implement a growable array.
The Dictionary, Hashtable, and Properties classes provide key-value pair storage and retrieval. The Dictionary class is the abstract superclass of Hashtable, which is, in turn, the superclass of Properties.
The Collection interface defines methods that implement the concept of an unordered group of objects.
The List interface extends the Collection interface to implement an ordered collection of objects.
The Set interface extends the Collection interface to implement a finite mathematical set.
The
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