采用接口的“must的我思科班采用所有接口方法,采用可乘相机的接口的不相干班采用任何接口方法?
一些接口只是作为班级的标识。 宇宙航行就是其中之一。 只有在物体需要特殊处理的情况下,这些方法才有。
由于<代码>可乘仅为物体序列化的“标记”接口,没有界定任何方法。 http://docs.oracle.com/javase/1.4.2/docs/api/java/io/Serializable.html
The serialization interface has no methods or fields and serves only to identify the semantics of being serializable.
http://java.sun.com/developer/techArticles/Programing/serialization/“rel=”nofollow。 SDN:
An object is marked serializable by implementing the java.io.Serializable interface, which signifies to the underlying API that the object can be flattened into bytes and subsequently inflated in the future.
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