枚举中的序列化

Question

public static void main(String[] args) {

    try {
        Object input = ABC.ad;
        ObjectOutputStream objectOutputStream = new ObjectOutputStream(new FileOutputStream(new File("test.enum")));
        objectOutputStream.writeObject(input);
        objectOutputStream.close();

        ObjectInputStream objectInputStream = new ObjectInputStream(new FileInputStream(new File("test.enum")));
        Object outPut = objectInputStream.readObject();
        objectInputStream.close();

        if(input == outPut) {
            System.out.println("Same ............"+input+" "+outPut);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

}

enum ABC {
    ad,de;
}

我正在尝试序列化枚举和反序列化。正如所料，我得到了结果＆＃34;相同＆＃34;。但我不知道它是如何工作的。即使我也检查了Enum课程。它没有readResovle这样的方法。请解释..