这是一本资料书，趣味性极强。主要收集了18个有趣的java程序。像“青蛙吃小虫”、“三楼电梯模型”、“java聊天室”......等有趣程序。不看你会后悔的-This is an information book, very interesting. The main collection of 18 interesting java program. Such as " frogs eat insects," " Model of the third floor of