General Utilities

Module	Description	Dependencies	Source
event	General event manager Event management is the backbone of any large scale software system. For some reason the JDK does not include this vital component, and instead reimplement it for each component needing the functionality. The present solution is simple, yet complete and capable of fulfilling all needs of any client.	None	event.jar EventListener.java EventManager.java
directory	Generic directory structure A directory structure is a collection almost as common as a list or a stack. Still the JDK lacks a proper implementation of this other than in Swing where the API is GUI based. Note that this module has nothing to do with file systems.	None	directory.jar DirectoryEntry.java DirectoryItem.java Folder.java SymbolicLink.java
filesystem	TreeModel implementation of a file system This is a classic implementation of a JDK TreeModel interface for a file system where care has been taken to make it properly updated when the file system changes.	None	filesystem.jar FileSystemModel.java
day	A timeless Date class The JDK actually lacks a proper date class. java.util.Date and Calendar are time classes really, and are messy to use when dealing with days only. The Day class provided here has a Calendar back-end, but hides the time component. The Time class inherits from Day and completes the picture.	None	day.jar Day.java Time.java
timer	Program event timer For simple timing of processes, algorithms, sequence or the entire JVM session.	None	timer.jar Timer.java
filemonitor	Monitor changes to disk files Utility class for monitoring specified files or directories (java.io.File) in a file system. The monitor uses polling with a client specified polling interval, and report creation, changes and deletion through the listening interface.	None	filemonitor.jar FileListener.java FileMonitor.java
tokenizer	Smart Tokenizer Simple extension to the JDK StringTokenizer with the ability to handle empty tokens.	None	tokenizer.jar SmartTokenizer.java
nicenumbers	Nice Numbers An iterator object that produce "nice" numbers within an interval. Useful for generating axes annotation. Support for bounded and unbounded intervals, minor nice numbers and minor minor nice numbers.	None	nicenumbers.jar NiceNumbers.java NiceNumber.java
byteswapper	Byte swapper utility Utility for byte swapping of all java data types. Byte swapping is used when communicating binary data between little-endian and big-endian representations.	None	byteswapper.jar ByteSwapper.java

Internationalization

Module	Description	Dependencies	Source
locale	Locale manager Class for keeping track of current locale and picking localized language elements from resource bundles. Includes notification feature that makes it simple to create dynamic updatable GUIs based on user selected locale.	None	locale.jar LocaleListener.java LocaleManager.java
timezone	Time zone manager Class for keeping track or current time zone. Includes notification feature that makes it simple to create dynamic updatable GUIs based on user selected time zone.	None	timezone.jar TimeZoneListener.java TimeZoneManager.java
currency	Currency manager and exchange rate server Manager object for java.util.Currency with capability to deliver dynamic exchange rate information through a CurrencyServer interface. One specific currency server is included.	None	currency.jar CurrencyManager.java CurrencyServer.java CurrencyListener.java SauderCurrencyServer.java
country	Country server Country manager singleton for serving localized country instances according to ISO standard ISO 3166-1. Suitable for populating GUI elements like sorted country selection lists. World countries localization mapping for locale `en_US` and `no_NO` are provided. Others must by supplied as needed.	None	country.jar CountryManager.java Country.java countries.txt Messages_en_US.properties Messages_no_NO.properties

I/O

Module	Description	Dependencies	Source
gifencoder	GIF encoder Class for converting images (java.awt.Image) and java components (java.awt.Component) to GIF files.	None	gifencoder.jar GifEncoder.java
fileaccessor	Base class for file readers/writers A common base class for file reader/writers with features like logging, progress monitoring, ASCII/binary access and checksum generation.	None	fileaccessor.jar FileLogger.java FileAccessor.java
browser	Access client web browser from java A class for accessing the client web browser from a java program, launching URLs or local files. Platform specific code for MS/Windows, Linux and MacOS. Originally written by Eric Albert @ Stanford University.	None	browser.jar Browser.java

Geometry

Module	Description	Dependencies	Source
geometry	A collection of geometry utilities Collection of static methods for intersections, area computation, ellipse creation, geometric distances, vector functions and more.	None	geometry.jar Geometry.java
matrix4x4	Matrix for geometric transformations A 4x4 matrix implementation specially designed for a 2D or 3D graphics rendering engine. Contains methods for world-to-device definition, inverse, general transformations (including rotate about arbitrary axis) and coordinate transformations.	None	matrix4x4.jar Matrix4x4.java Vector4.java
region	A Java implementation of the X11 region. A complete reimplementation of the X11 region feature. This is a vital component of any graphics rendering engine as it keeps track of objects and damage regions. Similar to java.awt.geom.Area, but 20 - 100 times faster.	None	region.jar Region.java Box.java Rect.java
spline	Factory class for 3D spline generation A factory class for generation of 3D splines based on specified control points. Included are Bezier spline, cubic spline and Catmull-Rom spline.	None	spline.jar SplineFactory.java Spline.java BezierSpline.java CubicSpline.java CatmullRomSpline.java

Graphics

Module	Description	Dependencies	Source
G	2D graphics library A complete 2D graphics library and rendering engine. Including layered hierarchical graphical objects, 3D world extents, powerful style support, smart annotation, image support, and interactions.	gifencoder geometry matrix4x4	GAnnotator.java GCanvas.java GComponent.java GImage.java GInteraction.java GObject.java GPosition.java GPositional.java GScene.java GScrollHandler.java GSegment.java GStyle.java GStyleListener.java GText.java GTransformer.java GViewport.java GWindow.java GWorldExtent.java ZoomInteraction.java

Mathematics

Module	Description	Dependencies	Source
lagrange	Lagrange interpolation Compute the polynomial factors for a curve passing a set of specified points.	Jama	lagrange.jar LagrangeInterpolation.java

User Interface

Module	Description	Dependencies	Source
splashscreen	Application splash screen Simple class representing an application splash screen.	None	splashscreen.jar SplashScreen.java
colorutil	A collection of useful color utilities Static methods for color blending, finding color distances, darkening and lightening of colors and more.	None	colorutil.jar ColorUtil.java

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License Information

The above source code is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

The above source code is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

In short:

The libraries listed are free and can be used for any purposes (also commercial).
The libraries must be accessed through the provided jar files. Its components may not be extracted and re-bundled with a client application.
If classes or packages are added, or classes are renamed or modified in any other way; The resulting packages and classes must also be licensed under the GNU LGPL.