Since all java LinkedList member variables are transient, what will the use of Serializable be?

Question

1). In the LinkedList implementation, all 3-element size variables, firstly, the latter are temporary, then what is the point of serialization implementation?

2) What will be saved when trying to serialize LinkedList?

Answer 1

You will notice that it LinkedListhas methods writeObjectand readObject. They write / read the size of the list and write / read each object in the list.

Note that these methods (but also the fields) are private, so the implementation may change. Do not depend on it. Depends on the interfaces.

Answer 2

readObject() writeObject(). , , .