Java基础例题

 1 package day01;
 2 import java.util.Scanner;
 3 public class Atm {
 4
 5     /**
 6      * @param args
 7      */
 8     public static void main(String[] args) {
 9         // TODO Auto-generated method stub
10         System.out.println("请输入密码");
11         Scanner con=new Scanner(System.in);
12         //用户从键盘中输入密码
13         String line=con.nextLine();
14         //如果密码等于1234
15         //java中字符串相等用equals比较
16         if(line.equals("1234")){
17             System.out.println("1、取款");
18             System.out.println("2、退出");
19             int num=con.nextInt();
20             switch(num){
21             case 1:
22                 System.out.println("1、取款100");
23                 System.out.println("2、取款200");
24                 System.out.println("3、取款500");
25                 System.out.println("4、其他");
26                 int money=con.nextInt();
27                 switch(money){
28                 case 1:
29                     System.out.println("取款100!");
30                 case 2:
31                     System.out.println("取款200!");
32                 case 3:
33                     System.out.println("取款500!");
34                 case 4:
35                     System.out.println("请输入金额!");
36                     int other=con.nextInt();
37                     System.out.println("取款:"+other+"元！");
38                     break;
39             }
40             break;
41             case 2:
42                 System.out.println("欢迎下次光临！退出！");
43             break;
44         }
45     }
46     }
47 }