Java 枚举的使用（看了包会！）

package com.day05.java;

import java.util.ArrayList;
import java.util.Date;


public class SeasonTest1 {
    public static void main(String[] args) {
        @Deprecated //Deprecated 代表过时的
        Date date = new Date(1232, 12, 12);
        @SuppressWarnings("unused")//变量没有调用的高亮
        int sop = 10;
        @SuppressWarnings({"unused","rawtyper"})
        ArrayList list=new ArrayList();

        Season1 spring = Season1.SPRINC;
        System.out.println(spring.toString());

        System.out.println("***************************");
        Season1[] val = Season1.values();
        for (int i = 0; i < val.length; i++) {
            System.out.println(val[i]);
            val[i].show();
        }

        System.out.println("***************************");
        Thread.State[] vul = Thread.State.values();
        for (int i = 0; i < vul.length; i++) {
            System.out.println(vul[i]);
        }
    }
}


interface Info {
    void show();
}

//自定义枚举类
enum Season1 implements Info {
    //1.提供当前枚举类的对象，多个对象之间用","隔开，末尾对象";"结束
    SPRINC("春天", "春暖花开") {
        @Override
        public void show() {

            System.out.println("春天在哪里？");

        }
    },
    SUMMER("夏天", "夏日炎炎") {
        @Override
        public void show() {
            System.out.println("宁夏");
        }
    },

    AUTUMN("秋天", "秋高气爽") {
        @Override
        public void show() {
            System.out.println("秋高气爽");
        }
    },
    WINTER("冬天", "冰天雪地") {
        @Override
        public void show() {
            System.out.println("大约在冬季");
        }
    };
    //1.声明Season对象的属性：private final 修饰
    private final String seasonName;
    private final String seasonDesc;

    //2.私有化类的构造器，并给对象属性赋值
    private Season1(String seasonName, String seasonDesc) {
        this.seasonName = seasonName;
        this.seasonDesc = seasonDesc;
    }


    //4.其他诉求，获取枚举类对象的属性

    public String getSeasonName() {
        return seasonName;
    }

    public String getSeasonDesc() {
        return seasonDesc;
    }

    //4.其他诉求 1：提供toString()
    @Override
    public String toString() {
        return "Season{" +
                "seasonName='" + seasonName + ''' +
                ", seasonDesc='" + seasonDesc + ''' +
                '}';
    }

    @Override
    public void show() {
        System.out.println("这是一个季节");
    }

}

package com.day05.java;



public class SeasonTest {
    public static void main(String[] args) {
        Season season = Season.SPRINC;
        System.out.println(season);
    }
}


//自定义枚举类
class Season {
    //1.声明Season对象的属性：private final 修饰
    private final String seasonName;
    private final String seasonDesc;

    //2.私有化类的构造器，并给对象属性赋值
    private Season(String seasonName, String seasonDesc) {
        this.seasonName = seasonName;
        this.seasonDesc = seasonDesc;
    }

    //3.提供当前枚举类的多个对象
    public static final Season SPRINC = new Season("春天", "春暖花开");
    public static final Season SUMMER = new Season("夏天", "夏日炎炎");
    public static final Season AUTUMN = new Season("秋天", "秋高气爽");
    public static final Season WINTER = new Season("冬天", "冰天雪地");

    //4.其他诉求，获取枚举类对象的属性

    public String getSeasonName() {
        return seasonName;
    }

    public String getSeasonDesc() {
        return seasonDesc;
    }


    //4.其他诉求 1：提供toString()


    @Override
    public String toString() {
        return "Season{" +
                "seasonName='" + seasonName + ''' +
                ", seasonDesc='" + seasonDesc + ''' +
                '}';
    }
}