如何用一个通用的java程序找到任何一组java元素集（Object）的全部所有的组合集？这个私人收藏的简单程序可以做到。欢迎下载。-How to use a generic java program to find any one group of java Element Set (Object) a combination of all the full set? This private collection of simple procedures can be done. Welco