In this paper we present alternatives for developing applications based on Java, using two of the most
popular Java tools Alice 3 and Greenfoot. Both applications provide innovative programming environment and are widely used in universities and high schools around the world. Alice 3 and Greenfoot help users to learn programming in Java and can be used successfully and without excessive
difficulty in learning object oriented programming. We strongly recommend teachers to use these two Java tools for
teaching object-oriented programming.
In this paper is presented the implementation of a process control structures very used in demonstration of advanced control principles, the "Rotary Inversed Pendulum". Realtime requirements of that process are very powerful and this has required the implementation of a distribution of multiple processors processing. However, the system is underactuated, and so the design problems are complex for such a system.
The implementation was made as a state feed-back control structure and control algorithm was designed by LQR method.