超市管理系统的开发,复习、巩固Java语言的基础知识，进一步加深对Java语言的理解和掌握-The analysis system function structure module, and gives the system the function structure drawing, the analysis system data flow chart, and gives the system the data flow chart, the design must conform t

商场商品管理信息系统，可以实现创建，增加，删除，修改，排序，查询等多种功能。其中用到了字符串、文件、链表、顺序表、数组、图等多种数据结构。-Stores commodities management information system can realize the create, increase, delete, modify, sorting, inquires the multiple functions. Among them the use of the string, docum

排队论中可以按指数分布的时间间隔产生一个队列，并进入服务时间服从指数分布的服务台，画图得出其到达时间与离开时间，还有每个顾客在系统中的逗留时间(Can produce a queue according to the time interval of exponential distribution in queuing theory, and enter the Business Hours exponentially distributed service station, drawing