枚举简介说明

枚举类的简介说明

枚举类继承于java.lang.Enum

 
public enum Gender {
    MALE,FEMALE
}	

将Gender的class文件进行反编译
//继承java.lang.Enum并声明为final
public final class Gender extends Enum
{

    public static Gender[] values()
    {
        return (Gender[])$VALUES.clone();
    }

    public static Gender valueOf(String s)
    {
        return (Gender)Enum.valueOf(Gender, s);
    }

    private Gender(String s, int i)
    {
        super(s, i);
    }
    //枚举类型常量
    public  static final  Gender MALE;
    public  static final  Gender FEMALE;
    private static final  Gender $VALUES[];//使用数组进行维护

    static
    {
        MALE = new Gender("MALE", 0);
        FEMALE = new Gender("FEMALE", 1);
        $VALUES = (new Gender[] {
            MALE, FEMALE
        });
    }
}