Implementing Serializable is not a decision to be undertaken lightly and you should weigh the costs against the benefits. Classes designed for inheritance should rarely implement Serializable, and ...

Item 86: Implement Serializable with great caution（非常谨慎地实现 Serializable） Allowing a class’s instances to be serialized can be as simple as adding the words implements Serializable to its declaration.

I have recently been asked by several different people in several different situations about Java serialization , about the Serializable interface , about serialVersionUID , and about how to ...