Java中的枚举类型enum

public class Mainseason {
    public static void main(String[]args){
        Season season1= Season.spring;
        Season season2=Season.summer;
        Season season3=Season.fall;
        Season season4=Season.winter;
        System.out.println(season1);
    }
}
public class Season {
    private Season(){};
    public static final Season spring=new Season();
    public static final Season summer=new Season();
    public static final Season fall=new Season();
    public static final Season winter=new Season();

}

//使用函数调用方法，season类不变，如上
public class Mainseason {
    public static void main(String[]args){
      
        test(Season.spring);
    }
    public static void test(Season season){
        if(season==Season.spring){
            System.out.println("春天");
        }//其他季节类似于这种
    }
}

1).name是求取其名字

2}ordinal获取其位置

public enum Season {
    spring,summer,fall,winter;//后面如无方法，分号不写
    season(){
    }//该方法调用四次
}
public class Mainseason {
    public static void main(String[]args){
      
        test(Season.spring);
    }
    public static void test(Season season){
        switch(season){
            case spring:
                System.out.println("春天啊");//只有使用枚举类型，才可使用switch语句
                break;
        }
        if(season==Season.spring){
            System.out.println("春天");
        }//其他季节类似于这种
    }
}