Package java.util

Interface Summary
Enumeration Enumeration object allows you to go through collections one object at a time.
Iterator An iterator over a collection.
 

Class Summary
ArrayList An expandable array.
BitSet Represents a long set of bits.
Hashtable Maps keys to objects.
Queue A FIFO Queue of objects.
Random Pseudo-random number generation.
Stack A LIFO stack of objects.
Vector A dynamic array.
 

Exception Summary
EmptyQueueException An exception thrown by some Queue class methods to indicate that the Queue is empty
EmptyStackException An exception thrown by some stack class methods to indicate that the stack is empty