Java枚举常见特性

 1 enum MyEnum{
 2     ONE("one"),TWO("two"),THREE("three");
 3     
 4     private String msg;
 5 
 6     private MyEnum(String msg){
 7         this.msg = msg;
 8     }
 9     public String getMsg(){
10         return msg;
11     }
12 }

 1 enum MyEnum{
 2     ONE{
 3         void action(){
 4             System.out.println("one do");
 5         }
 6     },
 7     TWO{
 8         void action(){
 9             System.out.println("two do");
10         }
11     },
12     THREE{
13         void action(){
14             System.out.println("three do");
15         }
16     };
17     
18 
19     abstract void action();
20 }