Java enum

/**
 * Created by Edward on 2016/6/30.
 */
public class TestEnum {

    //方法一
    public enum SexEnum{
        MALE,FEMALE;
    }

    //方法二
    public enum SexEnum1{
        MALE(1),
        FEMALE(2);

        private int id;

        //私有构造函数
        private SexEnum1(int id)
        {
            this.id=id;
        }

        //获取值对应的enum对象
        public static SexEnum1 getEnum(int id)
        {
            for(SexEnum1 s : SexEnum1.values())
            {
                if(s.id == id)
                return s;
            }
            return null;
        }
    }


    public static void main(String[] argv)
    {
        //列出enum的name
        for(SexEnum sex : SexEnum.values())
            System.out.println(sex.name());

        //通过 ENUM 访问
        SexEnum sex = SexEnum.MALE;
        switch(sex)
        {
            case MALE:
                System.out.println("男性");
                break;
            case FEMALE:
                System.out.println("女性");
                break;
            default:
                System.out.println("其他");
                break;
        }

        //通过值获取 enum对象
        SexEnum1 s = SexEnum1.getEnum(3);
        switch(s)
        {
            case MALE:
                System.out.println("男");
                break;
            case FEMALE:
                System.out.println("女");
                break;
            default:
                System.out.println("其他");
                break;
        }

    }
}