public class passwordVerify {

public static void main(String[] args) 
{
// TODO Auto-generated method stub


verify();
}
public static void verify()
{
String originalUserName = "cs1053283896@gmail.com" ;  //账号密码信息
String originalUserPassword = "123456789" ;

Scanner myscanner = new Scanner(System.in);

String userName,userPassword;

System.out.println("请输入账号：");    //输入信息
userName=myscanner.next();
System.out.println("请输入密码："); 
userPassword=myscanner.next();

userName=userName.trim();     //去除空格字符串头部尾部的空格
userPassword=userPassword.trim();

if(!userName.equals(originalUserName)) //检验账号
System.out.println("用户名输入错误，请重新输入");
else if(!userPassword.equals(originalUserPassword)) //检验密码
   System.out.println("密码输入错误，请重新输入");
   else    //用户名、密码输入正确
   {
    int index = originalUserName.indexOf('@');
    String name = originalUserName.substring(0, index);
    System.out.println("验证通过,"+name+",欢迎回来");
   }

}