Java Reference
In-Depth Information
The java.util Package
This package contains date and time facilities and miscellaneous utility classes.
Interface
The Enumeration interface provides methods for accessing a series of elements in a class
implementing this interface.
Classes
Calendar The Calendar class is an abstract class for setting and getting dates using a
set of integer fields.
Date The Date class represents a specific point of time in millisecond precision.
Hashtable The Hashtable class implements a hashtable in order to map keys to values.
Random The Random class implements a stream of pseudorandom numbers.
Stack The Stack class implements a last-in-first-out (LIFO) stack of objects.
Timer The Timer class is an MIDP extension to CLDC and is available only in MIDP-
conforming Java Virtual Machines. The class provides a mechanism for threads
to schedule tasks for future executions in a background thread.
TimerTask The TimerTask class is an MIDP extension to CLDC and is available only in
MIDP-conforming Java Virtual Machines. A Timer can schedule a TimerTask
for an one-time or a repeated execution.
TimeZone The TimeZone class represents a time zone offset, and also calculates daylight
savings time changes.
Vector
The Vector class implements a mutable array of objects.
Exceptions
EmptyStackException The EmptyStackException is thrown by the methods of the
S tack class to indicate that the stack is empty.
NoSuchElementException The NoSuchElementException is thrown by the
nextElement() method of an Enumeration to indicate that
t here are no more elements in the enumeration.
 
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