基于Java技术，只实现了ATM机的取款过程

在这个程序中，用到以下JAVA类库：

　　

　　dataAccess(数据操作)类：包含用于数据库的相关操作

　　atmScreen(ATM屏幕)类：主要创建各操作窗体和相应按钮事件

　　Account(用户帐户)类：包含用户信息的验证、余额查询和扣钱等方法

　　readCard(读卡机)类：包含读取用户卡号和退卡(退出系统)

　　moneyMachine(取钱机)类：只用于打印清单

　　Atm(系统)类：系统主方法的开始，负责调用其他类-Based on Java technology, only the implementation process of ATM cash machine at this procedure, use the following JAVA class library: dataAccess (Data Manipulation) categories: database contains the relevant operation for atmScreen (ATM screen) categories: the main window to create the operation and the corresponding button Event Account (user account) categories: contains the user authentication information, such as balance inquiries and扣钱Ways readCard (card reader) categories: contains read the user card number and retirement card (System Exit) moneyMachine (money machine) categories: just for printing a list of Atm (System) categories: system, start the main method is responsible for other types of call