package com.itranswarp.learnjava; /** * Learn Java from https://www.liaoxuefeng.com/ * * @author liaoxuefeng */ public class Main { public static void main(String[] args) { String token = login("1admin", "password"); System.out.println("Token: " + token); } static String login(String username, String password) { if (username.equals("admin")) { if (password.equals("password")) { return "login successful"; } else { // 抛出LoginFailedException: throw new LoginFailedException("Bad username or password."); } } else { // 抛出UserNotFoundException: throw new UserNotFoundException("User not found."); } } } class LoginFailedException extends BaseException{ public LoginFailedException() { super(); } public LoginFailedException(String message) { super(message); } } class UserNotFoundException extends BaseException{ public UserNotFoundException() { super(); } public UserNotFoundException(String message) { super(message); } }
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