Practice Customizing Serialization With Externalizable (16.9) - Serialization and Deserialization

Practice: Customizing Serialization with Externalizable

Lesson 16.9Serialization and Deserialization

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10 questions

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6 sample questions

Question 1.
What interface do we implement for custom serialization in Java?
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It's related to object and byte stream conversion.
Question 2.
Name one method you must implement when using Externalizable.
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Think of writing objects to a stream.
3Question 3.
What is the main purpose of the Externalizable interface?
- To provide a default way to serialize objects
- To customize serialization
- To improve performance of Serializable
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Think about the differences in control it provides.
4Question 4.
True or False: The Externalizable interface requires implementing only one method.
- True
- False
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Count the methods!
Question 5.
Design a scenario where using Externalizable would yield significant performance benefits. Consider the object structure and data types involved.
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Think about which fields are necessary for transmission.
Question 6.
Implement an Externalizable interface in a class with fields of types List and Map. Discuss any challenges and considerations regarding serialization.
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How do these collections serialize? Are their contents also Externalizable?

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