.Open Java Application Programmers Interface
. The Java Application Programmers Interface 1.0.2
This is no longer documented or supported by its developers: Sun.

Also see
.See http://www.csci.csusb.edu/dick/samples/java.classes.html
which displays the classes hierarchically complete with properties
and selected fields and methods.  This API is also indexed and documented
by:
.Set
 (Index to documentation):
.See http://www.javasoft.com/products/jdk/1.2/docs/api/index.html
 (Packages):
.See http://www.javasoft.com/products/jdk/1.2/docs/api/packages.html
 (Names):
.See http://www.javasoft.com/products/jdk/1.2/docs/api/AllNames.html
 (Tree):
.See http://www.javasoft.com/products/jdk/1.2/docs/api/tree.html
.Close.Set

API_1_2::=following
.Net
Notes:
.Set
 All defined are for classes unless marked interface etc.  
 The "@C" are the possible subsets/subtypes/extensions of class C.
 All class extend $Object.
 The name is defined by a link to a page specifying all non-private fields and methods.
 This does not show "Peer" and "Remote" classes.
 Many of the classes added between 1.0 and 1.2 are not listed here.
.Close.Set
. A
AbstractMethodError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.AbstractMethodError.html

Applet::@$Panel,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.applet.Applet.html
AppletContext::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.applet.AppletContext.html
AppletStub::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.applet.AppletStub.html

ArithmeticException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.ArithmeticException.html
ArrayIndexOutOfBoundsException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.ArrayIndexOutOfBoundsException.html
ArrayStoreException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.ArrayStoreException.html

AudioClip::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.applet.AudioClip.html

AWTError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.AWTError.html
AWTException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.AWTException.html

. B
BitSet::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.BitSet.html
Boolean::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Boolean.html

BorderLayout::@#LayoutManager,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.BorderLayout.html
A $LayoutManager that has a component in the center, top(north), bottom(south), left(west), and right(east) of it, or any subset of these.

BufferedInputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.BufferedInputStream.html
BufferedOutputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.BufferedOutputStream.html

Button::@$Component,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Button.html

ByteArrayInputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.ByteArrayInputStream.html
ByteArrayOutputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.ByteArrayOutputStream.html

. C
Canvas::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Canvas.html,
a $Component that permits graphics.

CardLayout::@#LayoutManager,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.CardLayout.html
A $LayoutManager which allows only one of its components to visible at any one time as selected byte show(...) method.

Character::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Character.html,
reference to a 16bit Unicode symbol.

Checkbox::@$Component,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Checkbox.html
CheckboxGroup::@$Component,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.CheckboxGroup.html
CheckboxMenuItem::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.CheckboxMenuItem.html

Choice::@$Component,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Choice.html

Class::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Class.html, meta-information about the class of an object.

ClassCastException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.ClassCastException.html
ClassCircularityError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.ClassCircularityError.html
ClassFormatError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.ClassFormatError.html

ClassLoader::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.ClassLoader.html

ClassNotFoundException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.ClassNotFoundException.html

Cloneable::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Cloneable.html,
$interface, 
classes that allow their objects to copied to create a new
$Object with the same data store.

CloneNotSupportedException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.CloneNotSupportedException.html

Color::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Color.html
ColorModel::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.ColorModel.html

Compiler::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Compiler.html

Component::@$Object,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Component.html
Components in a Graphic User Interface including: $Button, $List, 
$TextField, $TextArea, $CheckBox, $CheckBoxGroup, $Dialog, $Frame, 
$Scrollbar, $Choice, $Canvas, $Frame, $Panel, $Window.

Container::@$Component,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Container.html
A class of graphical User interface objects that can contain a varying number of other graphic objects ($Component).  All Containers have a $LayoutManager and a way to add and remove components.  

ContentHandler::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.ContentHandler.html
ContentHandlerFactory::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.ContentHandlerFactory.html

CropImageFilter::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.CropImageFilter.html
. D
DatagramPacket::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.DatagramPacket.html
DatagramSocket::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.DatagramSocket.html

DataInput::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.DataInput.html
DataInputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.DataInputStream.html
DataOutput::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.DataOutput.html
DataOutputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.DataOutputStream.html

Date::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.Date.html

DebuggerCallback::=http://www.javasoft.com/products/jdk/1.2/docs/api/sun.tools.debug.DebuggerCallback.html

Dialog::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Dialog.html

Dictionary::@$HashTable,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.Dictionary.html

Dimension::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Dimension.html,
This is an object that can keep track of the int `width` and `hieght` of something.

DirectColorModel::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.DirectColorModel.html

Double::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Double.html,
reference to a double length number.
. E
EmptyStackException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.EmptyStackException.html

Enumeration::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.Enumeration.html
Java's iterator.

EOFException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.EOFException.html

Error::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Error.html

Event::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Event.html

Exception::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Exception.html
. F
File::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.File.html
FileDescriptor::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.FileDescriptor.html
FileDialog::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.FileDialog.html
FileInputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.FileInputStream.html
FilenameFilter::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.FilenameFilter.html
FileNotFoundException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.FileNotFoundException.html
FileOutputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.FileOutputStream.html

FilteredImageSource::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.FilteredImageSource.html
FilterInputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.FilterInputStream.html
FilterOutputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.FilterOutputStream.html

Float::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Float.html,
single length floating point object.

FlowLayout::@#LayoutManager,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.FlowLayout.html
A $LayoutManager a manager that places objects, in the order added across the component and then row by row. Or in columns.  In each row items can be centered,
left, or right aligned.

Font::@$Object,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Font.html
In JDK1.0 the commonest fonts are Helvetica, TimeRoman, and Courier which
caused copyright problems.  The names have been changed to SanSerif, Serif, and
Monospaced in JDK1.1.  This class also defiines constants like Font.BOLD, Font.ITALIC, and Font.PLAIN.

FontMetrics::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.FontMetrics.html

Frame::@$Window,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Frame.html
. G
Graphics::@$Object,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Graphics.html
A Graphics object knows how to draw and fill: Rectangles (plain, 3D, or with rounded corners), ovals, arcs, lines, strings, in different $Color's, and how to
clear rectangles.

GridBagConstraints::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.GridBagConstraints.html
GridBagLayout::@$LayoutMananger,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.GridBagLayout.html
A $LayoutManager that is based on a grid but where each component can take up
any non-overlapping (tiled) rectangular set of grid rectangles.  Complex and clever.

GridLayout::@$LayoutManager,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.GridLayout.html
A $LayoutManager a simple two dimensional grid with fixed dimensions.

. H
Hashtable::@$Object,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.Hashtable.html
. I
IllegalAccessError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.IllegalAccessError.html
IllegalAccessException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.IllegalAccessException.html
IllegalArgumentException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.IllegalArgumentException.html
IllegalMonitorStateException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.IllegalMonitorStateException.html
IllegalThreadStateException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.IllegalThreadStateException.html

Image::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Image.html
ImageConsumer::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.ImageConsumer.html
ImageFilter::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.ImageFilter.html
ImageObserver::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.ImageObserver.html
ImageProducer::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.ImageProducer.html

IncompatibleClassChangeError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.IncompatibleClassChangeError.html

IndexColorModel::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.IndexColorModel.html

IndexOutOfBoundsException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.IndexOutOfBoundsException.html

InetAddress::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.InetAddress.html

InputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.InputStream.html

Insets::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Insets.html

InstantiationError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.InstantiationError.html
InstantiationException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.InstantiationException.html

Integer::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Integer.html

InternalError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.InternalError.html

InterruptedException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.InterruptedException.html
InterruptedIOException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.InterruptedIOException.html
IOException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.IOException.html

. L
Label::@$Component,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Label.html

LayoutManager::=$BorderLayout | $CardLayout | $FlowLayout | $GridBagLayout | $GridLayout.
A class of objects that can control the positioning of components inside a $Container.  
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.LayoutManager.html

LineNumberInputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.LineNumberInputStream.html

LinkageError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.LinkageError.html

List::@$Component,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.List.html
List of items in a scrollable window allowing the user to select one of them.

LocalVariable::=http://www.javasoft.com/products/jdk/1.2/docs/api/sun.tools.debug.LocalVariable.html

Long::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Long.html,
a reference to a long integer item of data.
. M
MalformedURLException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.MalformedURLException.html

Math::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Math.html,
a collection of useful functions and constants.

MediaTracker::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.MediaTracker.html

MemoryImageSource::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.MemoryImageSource.html

Menu::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Menu.html
MenuBar::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.MenuBar.html
MenuComponent::@$Object,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.MenuComponent.html
MenuContainer::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.MenuContainer.html
MenuItem::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.MenuItem.html
. N
NegativeArraySizeException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.NegativeArraySizeException.html
NoClassDefFoundError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.NoClassDefFoundError.html
NoSuchElementException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.NoSuchElementException.html
NoSuchFieldError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.NoSuchFieldError.html
NoSuchMethodError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.NoSuchMethodError.html
NoSuchMethodException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.NoSuchMethodException.html
NullPointerException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.NullPointerException.html

Number::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Number.html,
superclass of $Double, $Float, $Integer, ...
NumberFormatException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.NumberFormatException.html
. O
Object::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Object.html

Observable::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.Observable.html
Observer::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.Observer.html

OutOfMemoryError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.OutOfMemoryError.html

OutputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.OutputStream.html
. P
Panel::@$Container,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Panel.html

PipedInputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.PipedInputStream.html
PipedOutputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.PipedOutputStream.html

PixelGrabber::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.PixelGrabber.html

Point::@$Object,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Point.html
This is not a graphic object but an object with two integer coordinates called
x and y.

Polygon::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Polygon.html

PrintStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.PrintStream.html

Process::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Process.html

Properties::@Dictionary,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.Properties.html

ProtocolException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.ProtocolException.html

PushbackInputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.PushbackInputStream.html
. R
Random::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.Random.html

RandomAccessFile::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.RandomAccessFile.html

Rectangle::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Rectangle.html,
this not a grphic object but a record of two co-ordinates (x and y) and a
pair of dimensions(width and hieght).  It comes with a lot of operations including intersection and union.

RGBImageFilter::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.image.RGBImageFilter.html

Runnable::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Runnable.html,
$interface for Classes of objects that have a public void run() function.
A $Runnable object can be execute by a $Thread object in a separate
concurrent thread of control.

Runtime::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Runtime.html
RuntimeConstants::=http://www.javasoft.com/products/jdk/1.2/docs/api/sun.tools.java.RuntimeConstants.html
RuntimeException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.RuntimeException.html

. S
Scrollbar::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Scrollbar.html

SecurityException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.SecurityException.html
SecurityManager::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.SecurityManager.html

SequenceInputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.SequenceInputStream.html

ServerSocket::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.ServerSocket.html
Socket::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.Socket.html
SocketException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.SocketException.html
SocketImpl::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.SocketImpl.html
SocketImplFactory::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.SocketImplFactory.html

Stack::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.Stack.html,
a specialized $Vector.

StackOverflowError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.StackOverflowError.html
StreamTokenizer::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.StreamTokenizer.html

String::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.String.html,
a fixed sequence of characters.
StringBuffer::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.StringBuffer.html,
a variable sequence of characters.
StringBufferInputStream::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.StringBufferInputStream.html
StringIndexOutOfBoundsException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.StringIndexOutOfBoundsException.html
StringTokenizer::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.StringTokenizer.html

System::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.System.html
. T
TextArea::@$TextComponent,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.TextArea.html

TextComponent::@$Component,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.TextComponent.html

TextField::@$TextComponent,
.See http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.TextField.html

Thread::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Thread.html
ThreadDeath::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.ThreadDeath.html
ThreadGroup::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.ThreadGroup.html

Throwable::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.Throwable.html,
Something that can be used in throw and catch statements.  Includes $Exception
and $Error.

Toolkit::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Toolkit.html
. U
UnknownError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.UnknownError.html
UnknownHostException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.UnknownHostException.html
UnknownServiceException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.UnknownServiceException.html
UnsatisfiedLinkError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.UnsatisfiedLinkError.html

URL::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.URL.html
URLConnection::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.URLConnection.html
URLEncoder::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.URLEncoder.html
URLStreamHandler::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.URLStreamHandler.html
URLStreamHandlerFactory::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.net.URLStreamHandlerFactory.html

UTFDataFormatException::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.io.UTFDataFormatException.html

. V
Vector::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.util.Vector.html,
a dynamic array.

VerifyError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.VerifyError.html
VirtualMachineError::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.lang.VirtualMachineError.html

. W
Window::=http://www.javasoft.com/products/jdk/1.2/docs/api/java.awt.Window.html,
Either a $Dialog or a $Frame.
.Close.Net API_1_2
. The Java Application Programmers Interface 1.1.5
.Set
(Index_1_1):
.See http://www.javasoft.com/products/jdk/1.1/docs/index.html


(ClassList_1_1):
.See http://www.javasoft.com/products/jdk/1.1/docs/relnotes/classlist.html

(Packages_1_1):
.See http://www.javasoft.com/products/jdk/1.1/docs/api/packages.html

(Names_1_1):
.See http://www.javasoft.com/products/jdk/1.1/api/a-names.html

(Tree_1_1):
.See http://www.javasoft.com/products/jdk/1.1/api/tree.html
.Close.Set
API_1_1::=following
.Net
The JDK uses the previous Application Programmer's Interface
 $API_1_0
plus new features
.See http://www.javasoft.com/products/jdk/1.1/docs/relnotes/features.html
some of which are defined given below.
. New Event Handling
Many components(objects in class $Component)  implement a function like this:
`component`.add`Type`Listener(`l`) where `l` is in a class that implements the
`Type`Listener interface and `Type` is a name of a type of $AWTEvent.
The `Type`Listener interface defines a
a void function action`something`(`Type`Listener event).  The
`something` varies with the `Type` of the event.  Another class can define
a class that implements `Type`Listener by handling the events.  It
constructs an object of this tpe and passes it to the component
using the add`Type`Listener function.  When events occur the
implemented function is called with arguments defining the event.
.As_is 	anXListener---implements--->interface----used by---->aComponent
.As_is 	anXListener-passed by-addXListener(anXListener)-to-->aComponent
.As_is 	anXListener<------gets called when an XEvent hits----aComponent
A more detailed model using the Unified Modeling Language
can be downloaded:
.See http://www/dick/samples/listener.mdl
and viewed with Rational Rose.

To support this model Java1.2 makes it easier to construct and object and
and describe its class in a single statement 
.See http://www/dick/samples/java.syntax.html#anonymous_class_object
-- without having to name the class.

AWTEvent::$abstract_class=$ActionEvent | $ItemEvent | $WindowEvent | $ComponentEvent | $AdjustmentEvent | $MouseEvent | $KeyEvent | $FocusEvent.
All these events have a `getSource()` method that tells a listener which
object generated the event.

The event handling uses grouped classes of AWTEvents,  $addListener 
functions, Listener interfaces, and Adapter classes.  To implement one of 
the interfaces below the class must (1) state that it "implements 
Interface_name" in its header and (2) define all the functions listed in 
the interface.  The Adapter classes supply default empty functions for the
functions in the interface, so by extending an Adapter class you only have
to defined the listening functions that do something.

.Table
.Row Event	Sent by	To	Added by	Adapter
.Row ActionEvent
.Item Button,List,MenuItem,TextField
.Item ActionListener:actionPerformed
.Item addActionListener
.Item ActionAdapter
.Row AdjustmentEvent
.Item Scrollbar
.Item AdjustmentListener:adjustmentValueChanged
.Item addAdjustmentListener
.Item AdjustmentAdapter
.Row ComponentEvent
.Item Dialog, Frame
.Item ComponentListener:componentMoved,componentHidden,componentResized,ComponentShown
.Item addComponentListener
.Item ComponentAdapter
.Row FocusEvent
.Item any Component
.Item FocusListener:focusGained,focusLost
.Item addFocusListener
.Item FocusAdapter
.Row ItemEvent
.Item Checkbox,CheckboxMenuItem,Choice,List
.Item ItemListener:itemStateChanged
.Item addItemListener
.Item ItemAdjuster
.Row KeyEvent
.Item any Component
.Item KeyListener:keyPressed,keyReleased,keyTyped
.Item addKeyListener
.Item KeyAdapter

.Row MouseEvent
.Item Canvas,Dialog,Frame,Panel,Window.
.Item MouseListener:mouseDragged,mousePressed,mouseClicked,mouseEntered,mouseExited
.Item addMouseListener
.Item MouseAdapter
.Row WindowEvent
.Item Dialog,Frame.
.Item WindowListener:windowClosing, windowOpened, windowIconified,windowDeiconified,windowClosed
.Item addWindowListener
.Item WindowAdapter
.Row MouseMovedEvent
.Item etc
.Close.Table
ActionEvent::@$AWTEvent, sent by $Button, $List, $MenuItem, and $TextField.
addActionListener::=`add $ActionListener (_) to the components list of listeners`
ActionListener::$interface= { actionPerformed($ActionEvent) }.
ActionAdapter::$abstract_class, provides empty functions for the interface.

AdjustmentEvent::@$AWTEvent, sent by $Scrollbar
addAdjustmentEvent::=`add $AdjustmentListener (_) to the components list of listeners`
AdjustmentListener::$interface={ adjustmentValueChanged($AdjustmentEvent)}.
AdjustmentAdapter::$abstract_class, provides empty functions for the interface.

ComponentEvent::@$AWTEvent, sent by $Dialog and $Frame.
addComponentListener::=`add $ComponentListener (_) to the components list of listeners`
ComponentListener::$interface={componentMoved($ComponentEvent),componentHidden($ComponentEvent),componentResized($ComponentEvent),componentShown($ComponentEvent)}.
ComponentAdapter::$abstract_class, provides empty functions for the interface.

FocusEvent::@$AWTEvent, could be sent by any $Component.
addFocusListener::=`add $FocusListener (_) to the components list of listeners`
FocusListener::$interface={ focusGained($FocusEvent), focusLost($FocusEvent)}.
FocusAdapter::$abstract_class, provides empty functions for the interface.

ItemEvent::@$AWTEvent, sent by objects in classes $Checkbox, $CheckboxMenuItem, $Choice, $List.
addItemListener::=`add $ItemListener (_) to the components list of listeners`
ItemListener::$interface={ itemStateChanged($ItemEvent) }.
ItemAdapter::$abstract_class, provides empty functions for the interface.

IOEvent::=$KeyEvent | $MouseEvent.

KeyEvent::@$AWTEvent, can be sent by any object in class $Component.
addKeyListener::=`add $KeyListener (_) to the components list of listeners`
KeyListener::$interface={ keyPressed($KeyEvent), keyReleased($KeyEvent). keyTyped($KeyEvent)}
KeyAdapter::$abstract_class, provides empty functions for the interface.

MouseEvent::@$AWTEvent, Can be sent by objects that are: $Canvas, $Dialog, $Frame, $Panel, $Window.
addMouseListener::=`add $MouseListener (_) to the components list of listeners`
MouseListener::$interface={ mouseDragged($MouseEvent),mousePressed($MouseEvent),mouseClicked($MouseEvent),mouseEntered($MouseEvent),mouseExited($MouseEvent)}.
MouseAdapter::$abstract_class, provides empty functions for the interface.

There is also a set of MouseMovedEvents...

WindowEvent::@$AWTEvent, can be sent by objects in $Dialog and $Frame.
addWindowListener::=`add $WindowListener (_) to the components list of listeners`
WindowListener::$interface={ windowClosing($WindowEvent), windowOpened($WindowEvent), windowIconified($WindowEvent),windowDeiconified($WindowEvent),windowClosed($WindowEvent)}.
WindowAdapter::$abstract_class, provides empty functions for the interface.

. Character-based Input/Output
These echo the structure of $InputStream and $OutputStream:

Reader::$abstract_class=$BufferedReader | $CharArrayReader | $FileReader | $PipedReader | $StringReader.
BufferedReader::@$Reader.
CharArrayReader::@$Reader.
FileReader::@$Reader.
PipedReader::@$Reader.
StringReader::@$Reader.

Writer::$abstract_class=$BufferedWriter | $CharArrayWriter | $FileWriter | $PipedWriter | $StringWriter.
BufferedWriter::@$Writer.
CharArrayWriter::@$Writer.
FileWriter::@$Writer.
PipedWriter::@$Writer.
StringWriter::@$Writer.

. Miscelaneous New Classes
MenuShortCut::@$Object.
.Close.Net
. Glossary
abstract_class::=`A class with one or more abstract functions.  No objects can be made for this class but there can be references to abstract_classes and classes derived from them that are not abstract.
interface::=`a list of public abstract methods(functions) that other classes can implement.  A variable can refer to any object that implements an interface but no objects can be created for an interface directly`.
.Close Java Application Programmers Interface