java 枚举values()方法

public enum EnumDemo {
	 LAUNCH(1, \"launch event\", \"e_l\"),//launch事件，表示第一次访问
     PAGEVIEW(2, \"page view event\", \"e_pv\"),//页面浏览事件
     CHARGEREQUEST(3, \"charge request event\", \"e_crt\"),//订单生产事件
     CHARGESUCCESS(4, \"charge success event\", \"e_cs\"),//订单成功支付事件
     CHARGEREFOUND(5, \"charge refound event\", \"e_cr\"),//订单退款事件
     EVENT(6, \"event duration event\", \"e_e\")//事件
     ;
     public final int id;//id唯一标识
     public final String name;//名称
     public final String alias;//别名，用于数据收集的简写

     private EnumDemo(int id, String name, String alias)//枚举类型的构造方法一定是私有的
     {
         this.id = id;
         this.name = name;
         this.alias = alias;
     }
     public static void main(String[] args) {
		EnumDemo[] values=EnumDemo.values();
		for(EnumDemo value:values)
		{
			System.out.println(value+\"  \"+value.id+\" \"+value.name+\" \"+value.alias);
		}
	}
}

输出：

LAUNCH  1 launch event e_l
PAGEVIEW  2 page view event e_pv
CHARGEREQUEST  3 charge request event e_crt
CHARGESUCCESS  4 charge success event e_cs
CHARGEREFOUND  5 charge refound event e_cr
EVENT  6 event duration event e_e