Java Neural Networks Tutorial

Neural Java is a series of exercises and demos. Each exercise consists of a short introduction, a small demonstration program written in Java (Java Applet), and a series of questions which are intended as an invitation to play with the programs and explore the possibilities of different algorithms.The aim of the applets is to illustrate the dynamics of different artificial neural networks. Emphasis has been put on visualization and interactive interfaces. The Java Applets are not intended for and not useful for large-scale applications! Users interested in application programs should use other simulators.The list below covers standard neural network algorithms like BackProp, Kohonen, and the Hopfield model. It also includes some models that are more biological, and features visualizations of the Hodgkin-Huxley and the integrate-and-fire models.
http://diwww.epfl.ch/mantra/tutorial/english/