ATM取款机用户界面设计

packageatm.com;/***用户帐户类*/importjava.sql.*;publicclassAccount{DataOperationdto=newDataOperation();/**修改密码方法*/publicintchangePwd(StringgId,Stringpwd,StringoldPwd,StringnewPwd,StringnewPwd2){if(newPwd.length()==0||newPwd.trim().equals(""))return-3;//新密码不能为空el