• Enum


    1.定义时使用enum关键字定义。

    2.隐式继承了java.lang.Enum类,所以不能再继承其他类了。

    3.隐式的final修饰符,所以不能被其他类继承。

     1 package enumTest;
     2 
     3 public enum Week {
     4     MONDAY,
     5     TUESDAY,
     6     WEDNESDAY,
     7     THURSDAY,
     8     FRIDAY,
     9     SATURDAY,
    10     SUNDAY;
    11     
    12     public static void main(String[] args)
    13     {
    14         Week day = Week.FRIDAY;
    15         
    16         switch(day)
    17         {
    18             case MONDAY:
    19                 System.out.println("it is Monday! work hard!");
    20                 break;
    21             case TUESDAY:
    22                 System.out.println("it is Tuesday! work hard hard!");
    23                 break;
    24             case WEDNESDAY:
    25                 System.out.println("it is Wednesday! tired!");
    26                 break;
    27             case THURSDAY:
    28                 System.out.println("it is Thursday! waiting weekend!");
    29                 break;
    30             case FRIDAY:
    31                 System.out.println("it is Friday! will have a nice night!");
    32                 break;
    33             case SATURDAY:
    34                 System.out.println("it is Saturday! lovely day!");
    35                 break;
    36             case SUNDAY:
    37                 System.out.println("it is monday!oh no tomorrow is Monday again!");
    38                 break;
    39             default:
    40                 System.out.println("it is monday! what!");
    41                 
    42         }
    43     }
    44 }
    View Code
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  • 原文地址:https://www.cnblogs.com/cici20166/p/6193665.html
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