java32-巩固练习

import java.util.Scanner;
 public class test01 {
 public static void main(String[] args){
 Scanner in =new Scanner(System.in);
 boolean flag=true;
 while(flag) {
 //输入用户名
 System.out.println(“输入账号”);
 String admin = in.next();
 if (4 <= admin.length() && admin.length() <= 16) {
 System.out.println(“用户的用户名” + admin);        } else {
             System.out.println("密码输入错误，请重新输入账号密码。账号4-16位，密码6-16位");
             continue;
         }
         //输入密码
         System.out.println("输入密码");
         String password = in.next();
         if (6 <= password.length() && password.length() <= 16) {
             System.out.println("用户的密码" + password);
             flag=false;
         }else{
             System.out.println("密码输入错误，请重新输入账号密码。账号4-16位，密码6-16位");
             continue;
         }
     }
 }
 }