枚举的简单应用（一）

枚举类

 1 package com.yeepay.sxf.euma;
 2 /**
 3  * 表示星期的枚举
 4  * @author sxf
 5  *
 6  */
 7 public enum Week {
 8     Monday,
 9     Tuesday ,   
10     Wednesday,  
11     Thursday ,  
12     Friday ,  
13     Saturday,   
14     Sunday,   
15 
16 }

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测试类

 1 package com.yeepay.sxf.euma;
 2 
 3 
 4 public class Test {
 5     public static void main(String[] args) {
 6         test1();
 7     }
 8     
 9     
10     public static void  test1(){    
11         //将枚举转换成==>字符串
12         String ad=Week.Friday.name();
13         System.out.println("将枚举转换成==>字符串："+ad);
14         
15         //将字符串转换成==>枚举
16         String mon="Friday";
17         Week mo=Week.valueOf(mon);
18         System.out.println("将字符串转换成==>枚举:"+mo);
19         
20         //将枚举类内的枚举转换成==>数组
21         Week[] eWeeks=Week.values();
22         for (int i = 0; i < eWeeks.length; i++) {
23             System.out.println("将枚举类内的枚举转换成==>数组:"+eWeeks[i]);
24         }
25     }
26 }

View Code

测试结果

将枚举转换成==>字符串：Friday
将字符串转换成==>枚举:Friday
将枚举类内的枚举转换成==>数组:Monday
将枚举类内的枚举转换成==>数组:Tuesday
将枚举类内的枚举转换成==>数组:Wednesday
将枚举类内的枚举转换成==>数组:Thursday
将枚举类内的枚举转换成==>数组:Friday
将枚举类内的枚举转换成==>数组:Saturday
将枚举类内的枚举转换成==>数组:Sunday