1 import java.util.*;
2 public class Demo13{
3
4
5 public static void main(String[] args) {
6
7 Weekday day = Weekday.SUN;
8
9 //将enum类型用于switch语句
10 //因为枚举类天生具有类型信息和有限个枚举常量，所以比int、String类型更适合用在switch语句中：
11 switch(day){
12 //注意：case 后面是空格 加上常量 最后冒号
13 case MON:
14 case TUE:
15 case WED:
16 case THU:
17 case FRI:
18 System.out.println("Today is " + day +". Work at office!");
19 break;
20 case SAT:
21 case SUN:
22 System.out.println("Today is " + day +". Work at home!");
23 break;
24 default:
25 System.out.println("cannot process " + day);
26 }
27 }
28 }
29
30 enum Weekday{
31 MON,TUE,WED,THU,FRI,SAT,SUN;
32 }
