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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the main purpose of the Externalizable interface?
💡 Hint: Think about how serialization differs between Externalizable and Serializable.
Question 2
Easy
Name the two methods you must implement when using Externalizable.
💡 Hint: Consider what you need to do for serialization and deserialization.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What must a class implement to allow custom serialization?
- Serializable
- Externalizable
- Cloneable
💡 Hint: Think about which interface provides more control.
Question 2
True or False: Using Externalizable, all fields in a class must be serialized.
- True
- False
💡 Hint: Consider why you might want to skip fields.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
Discuss how you would handle versioning issues when using Externalizable across different versions of an application.
💡 Hint: Think about maintaining backward compatibility.
Challenge and get performance evaluation