一种优秀的放置枚举的编码方式

package com.XXX.enums;

public class EnumsUtil {

    public enum Demo1 {
        FIRST;
    }

    public enum Demo2 {
        TWO;
    }

    public enum Demo3 {
        THREE;
    }

    public static void main(String[] args) {
        System.out.println(Demo1.FIRST);
        System.out.println(Demo2.TWO);
        System.out.println(Demo3.THREE);
    }
}