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/** 题目: 民航飞机票用户登录验证系统 1. 键盘输入选择英文还是中文系统 (1:中文, 2:英文) 2. 键盘输入用户名和密码 3. 对输入的用户名和密码判断不能为空 4. 对输入的用户名和密码进行登录验证 思路: 1. 抽象出类: 1.1 用户(User) 1.2 用户管理类(UserManager) 2. 找出类关系: 2.1 User -> UserManager 3. 找出类属性: 3.1 User(用户名,密码) 4. 找出方法: 4.1 用户登录验证 UserManager{boolean isLogin(User user)} */ import java.util.Scanner; import java.util.Locale; import java.util.ResourceBundle; import java.text.MessageFormat; public class TestLocaleApplication { public static void main(String[] args) { Scanner in=new Scanner(System.in); System.out.println("请选择中文 还是 英文环境 (1:中文, 2:英文)"); int number=Integer.parseInt(in.nextLine()); //根据输入的数字创建对应的国家语言 Locale locale=LocaleFactory.createLocale(number); ResourceBundle bundle=ResourceBundle.getBundle("validation",locale); System.out.println(bundle.getString("inputUsername")); String username=in.nextLine(); System.out.println(bundle.getString("inputPassword")); String password=in.nextLine(); //输入验证 if(username==null||username.equals("")) { System.out.println(bundle.getString("validUsername")); return; } if(password==null||password.equals("")) { System.out.println(bundle.getString("validPassowrd")); return ; } //验证登录 User user=new User(username,password); UserManager um=new UserManager(); if(um.isLogin(user)) { System.out.println(MessageFormat.format(bundle.getString("loginSuccess"),username,username)); } else { System.out.println(bundle.getString("loginFail")); } } } class User { private String username; private String password; public User(String username,String password) { this.username=username; this.password=password; } public String getUsername() { return this.username; } public void setUsername(String username) { this.username=username; } public String getPassword() { return this.password; } public void setPassword(String password) { this.password=password; } } class UserManager { /** 用户登录验证 */ public boolean isLogin(User user) { if(user!=null&&user.getUsername().equals("admin")&&user.getPassword().equals("1")) { return true; } return false; } } /** 创建语言Locale类的工厂 */ class LocaleFactory { /** 根据输入 (1:创建中文Locale, 2:英文 创建英文的Locale) */ public static Locale createLocale(int number) { if(number==1) return new Locale("zh","CN"); if(number==2) return new Locale("en","US"); return null; } }
http://www.verejava.com/?id=16994875552823