Development of numerical library software in Java

In the analysis of HEP experiment, the software components tend to be large and long-lived. So it is efficient to adopt OO technique in the development of software components in HEP analysis. It becomes easier to integrate or understanding the software system if OO tech-nology is adopted. Java, a simple OO language, began to affect scientific computing world and a lot of numerical software are developing. But those are not sufficiently analyzed or designed in a viewpoint of OO technology. In this paper, the development of numerical libraries in Java using OOA/OOD is reported