java枚举类

 自己写的枚举类

package com.yanan.java;

/**
 * Created by zhangyanana    on 2017/2/28.
 */
public class TestSeason {
    public static void main(String[] args) {
        Season season=Season.AUTUMN;
        System.out.println(season.getSeasonName()+"  "+season.getSeasonDesc());
　　　　
    }
}

//自定义枚举类（类似于单例模式）
class Season {

    //1.提供类的属性，声明为private final-----外部无法修改属性且属性值一旦被赋值就不可改变。
    private final String seasonName;
    private final String seasonDesc;

    //2.私有化构造器，让外部无法创建这个类的对象
    private Season(String seasonName, String seasonDesc) {
        this.seasonName = seasonName;
        this.seasonDesc = seasonDesc;
    }

    //3.通过公用的方法来调用属性
    public String getSeasonDesc() {
        return seasonDesc;
    }

    public String getSeasonName() {
        return seasonName;
    }

    //4.在类的内部创建类的对象(枚举类对象),设置为public static final
    public static final Season SPRING = new Season("spring", "春暖花开");
    public static final Season SUMMER = new Season("summer", "夏日炎炎");
    public static final Season AUTUMN = new Season("autumn", "秋高气爽");
    public static final Season WINTER = new Season("winter", "冬雷滚滚");

}

执行结果：