java171-枚举类

定义一个枚举类
//枚举类型
 public enum test122 {
     RED,
     GREEN,
     BLUE;
  
  
 }
 测试类public class test123 {
     public static void main(String[] args){
         System.out.println( test122.BLUE );
         test122[] sigs=test122.values();
         for(test122 e:sigs){
             System.out.println( "枚举名称" +e.name());
             System.out.println( "枚举的索引" +e.ordinal());
         }
     }
 }