实现一个简单的控制台版用户登陆程序, 程序启动提示用户输入用户名密码. 如果用户名密码出错, 使用自定义异常的方式来处理

	//密码错误异常类
public class PasswordError extends Exception {public PasswordError(String message){super(message);}
}//用户名错误异常类
public class UserError extends Exception{public UserError(String message){super(message);}
}import java.util.Scanner;public class RegisterException {private static String userName = "12345678";private static String passerWord = "123456";public static void main(String[] args) throws UserError, PasswordError {Scanner sc = new Scanner(System.in);System.out.print("请输入账号：");String str1 = sc.nextLine();System.out.print("请输入密码：");String str2 = sc.nextLine();login(str1, str2);}private static void login(String userName, String passerWord) throws PasswordError, UserError {if (!RegisterException.userName.equals(userName)){//判断用户名是否输入错误throw new UserError("用户名错误");//抛出用户名错误异常       }if (!RegisterException.passerWord.equals(passerWord)){//判断密码是否输入错误throw new PasswordError("密码错误");//抛出密码错误异常}System.out.println("登录成功");}
}