Java related

• Ninja - Numerical intensive Java, Alphaworks, IBM.
• JMSL - A numerical library for Java, Visual Numerics.
• JavaNumerics - NIST.
• Ptolemy II - Set of Java packages supporting heterogeneous, concurrent modeling and design. Includes a number of support packages, such as graph, providing graph-theoretic manipulations, math, providing matrix and vector math and signal processing functions, plot, providing visual display of data, data, providing a type system, data encapsulation and an expression parser, etc.
• NetBeans - Development environment for Java (and other languages).
• Dick Baldwin - Java Programming Tutorials.