Animated illustrations, one-click data structure
Java Concurrency Tools for the JVM
Open-source electronics platform
AlgoSim : création, analyse et exécution des algorithmes
Most comprehensive list of tech interview questions
The DjVu complete solution,with OCR Technology(Arabic ,English).
Java toolkit for discrete Image and Signal processing.
free and fast implementation of a Base64 coder for Java
Open source library for processing arrays and matrices
a free cross platform calculator for calculating BIG numbers