20.2. Java Serialization API

Try these first

1. 1.

   What is the purpose of the Serializable interface?

   Hint

   Consider what classes need to do to be serialized.

2. 2.

   What happens to transient fields during serialization?

   Hint

   Think about what transient means.

3. 3.

   What does the Serializable interface do?

   • Marks a class for serialization
   • Defines serialization methods
   • Handles deserialization

   Hint

   Think about what is needed to serialize an object.

4. 4.

   True or False: A transient field will be serialized.

   • True
   • False

   Hint

   Consider what 'transient' means in this context.

5. 5.

   Design a class with multiple properties, ensuring some are sensitive (like passwords). Implement serialization and show how to manage transient fields.

   Hint

   Remember that the password should remain private throughout the process.

6. 6.

   Write an explanation on how a change in class structure affects serialization and how to handle versioning.

   Hint

   Reference real-world scenarios to illustrate changes in data models.