Java学习之自定义异常

 1 package com.gh;
 2 import java.util.Scanner;
 3 /**
 4  * 自定义异常
 5  * @author ganhang
 6  *
 7  */
 8 public class ExceptionDemo {
 9     public static void main(String[] args) throws exception {
10         Scanner sc = new Scanner(System.in);
11         System.out.println("请输入帐号aaa密码123");
12         String id = sc.nextLine();
13         int pwd = sc.nextInt();
14         if (!id.equals("aaa") || pwd != 123)
15             throw new exception("帐号或密码错误！");
16         else System.out.println("帐号正确！");
17     }
18 }
19 class exception extends Exception{
20     public exception(String mes){
21         super(mes);
22     }
23 }