Practice Best Practices (16.11) - Serialization and Deserialization

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10 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the purpose of serialVersionUID?
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Think about how class versions relate during serialization.
Question 2.
What does the transient keyword do?
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Consider sensitive information.
3Question 3.
What does serialVersionUID help with?
- Holy Grail
- Class Versioning
- Compilation
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It's crucial for class identity during serialization.
4Question 4.
True or False: transient fields are always serialized.
- True
- False
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Think about what you want to expose.
Question 5.
Create a class called Account that implements Serializable. Ensure it has a transient field for a sensitive attribute. Then serialize and deserialize it to verify functionality.
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What part of the class should be marked transient?
Question 6.
Explain how to modify an existing class to ensure backward compatibility after adding a new field used in serialization.
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What modifications protect older data?

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