The proposed library, XMLGUI, is a tool for developing user-customizable applications. A user can change the size and position of any control on dialogs, form views, or property pages; change captions of the controls using any language; change styles

个人积累的实用工具类，包括一些很经典的常用功能的java类。-Personal accumulation of practical tools, including some very common features classic java class.

Math 类库，包含了Java 语言基础类库中没有的数学、统计学相关的基础工具。-Commons Math is a library of lightweight, self-contained mathematics and statistics components addressing the most common problems not available in the Java programming language or Commons Lang.