类对象上的JVM行为实现可序列化的接口

Question

我的问题是，当我们拥有实现接口可序列化的类时，当我们通过网络发送该类的对象时，JVM是否将对象的副本复制到内存中，或者JVM如何通过“保持对象的状态”的含义进行行为。

Answer 1

interface serializable is a marker interface, it indicate to JVM that objects of this class (which implements serialized) can be persisted to any stream (file or pushed on network socket). Whenever asked for serialization JVM writes the state of that object on the given stream and original object is kept or discarded will depend of the scope (life) of that object; so no question of JVM making making copy in memory or not.