Do Leetcode exercises in IDE
Java Concurrency Tools for the JVM
Simple example of draw and rotate 3D box
Open-source electronics platform
Cachelet - the simplest java framework for general purpose caching
Open source library for processing arrays and matrices
Programming Game, A Practice Tool for Building Intelligent Things
simple algorithm for a realtime interactive visual cortex for painting
An API for Java developers who need Genetic Algorithms
Testbed for playing with the algorithm "pagerank" of Google
a free cross platform calculator for calculating BIG numbers