20.7 - Custom Serialization with Externalizable
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Practice Questions
Test your understanding with targeted questions
What is the main purpose of the Externalizable interface?
💡 Hint: Think about how serialization differs between Externalizable and Serializable.
Name the two methods you must implement when using Externalizable.
💡 Hint: Consider what you need to do for serialization and deserialization.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What must a class implement to allow custom serialization?
💡 Hint: Think about which interface provides more control.
True or False: Using Externalizable, all fields in a class must be serialized.
💡 Hint: Consider why you might want to skip fields.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a custom object in Java that implements Externalizable. Explain how your choice of fields impacts serialization performance.
💡 Hint: Contemplate the size and sensitivity of data.
Discuss how you would handle versioning issues when using Externalizable across different versions of an application.
💡 Hint: Think about maintaining backward compatibility.
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