Java Open Source Projects Directory

...dedicated into Java open source projects

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General Purpose Libraries

jfig-java-configuration-solution

Java applications are typically deployed in multiple environments and platforms, each requiring some unique configuration. JFig gives developers a simple yet powerful tool to manage their applications configuration. It allows them to:

 * Store application configuration in one common repository of XML files
 * Access configuration data using one common,
 * Easily define multiple configurations, dynamically modifying those variables that need to change in different situations
 * Eliminate the error prone practice of defining the same configuration variables in multiple locations
 * Ease the management, deployment, and control of configuration files

 

j.a.d.e.-java-addition-to-default-environment

The JADE library provides "Context Programming" which allows: - Objects to be allocated on the "stack" to avoid garbage collection and provide faster execution speed (PoolContext). - Automatic concurrency in low level method to take advantage of multi-processors (or hyper-threading) in a transparent manner (ConcurrentContext). - Thread-based inheritable local/global settings (LocalContext). This library also provides - Struct/Union classes for interoperability with C/C++. - A math package with the first (and unique) generic Matrix class to solve linear systems of any kind. - Physical quantities for which the dimension checking is done in the form of class-type checking (e.g. the division of a length by a duration returns a velocity instance). - Real-time XML parser with no dynamic object creation (the world fastest by a factor 2-3x) And much, much more...

 

jsci-a-science-api-for-java

This is a free set of JavaTM packages. The aim is to encapsulate scientific methods/principles in the most natural way possible. As such they should greatly aid the development of scientific based software.

 

ostermiller-utils

Libraries for common tasks such as CSV, Base64, Circular Buffers, MD5, and Significant Figures.

 

apache-poi

The POI project is the master project for developing pure Java ports of file formats based on Microsoft's OLE 2 Compound Document Format. OLE 2 Compound Document Format is used by Microsoft Office Documents, as well as by programs using MFC property sets to serialize their document objects. There following are ports, packages or components contained in the POI project:

 * POIFS is the set of APIs for reading and writing OLE 2 Compound Document Formats.
 * HSSF is the set of APIs for reading and writing Microsoft Excel 97(-XP) spreadsheets.
 * HWPF is the set of APIs for reading and writing Microsoft Word 97(-XP) documents.
 * HSLF is the set of APIs for reading and writing Microsoft PowerPoint 97(-XP) documents.
 * HPSF is the set of APIs for reading property sets.

 

joone

Joone is a FREE Neural Network framework to create, train and test artificial neural networks. The aim is to create a powerful environment both for enthusiastic and professional users, based on the newest Java technologies. Joone is composed by a central engine that is the fulcrum of all applications that are developed with Joone. Joone's neural networks can be built on a local machine, be trained on a distributed environment and run on whatever device.

 

josql

JoSQL provides SQL capabilities for querying, ordering, and grouping of collections of Java objects. It allows a SQL statement to be applied to the collection of objects and the matching set returned, ordered and grouped. It should be used when a RDBMS is either too heavyweight or too impractical.

 

retrotranslator

Retrotranslator is a Java bytecode transformer that translates Java classes compiled with JDK 5.0 into classes that can be run on JVM 1.4. Supported features: generics, annotations, reflection on generics and annotations, enums, autoboxing, for-each loop, varargs, static import, concurrency utilities, collections framework enhancements.

 


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