Practice Serialversionuid (20.6) - Serialization and Deserialization

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8 questions

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2 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
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does serialVersionUID represent?
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Think about what helps in version control.
Question 2.
Why might you get an InvalidClassException?
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Consider changes that would affect class structure.
3Question 3.
What is the purpose of serialVersionUID?
- To serialize objects
- To prevent InvalidClassException
- To improve performance
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Focus on how it relates to object compatibility.
4Question 4.
True or False: Every class that implements Serializable must declare a serialVersionUID.
- True
- False
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Think about best practices.
Question 5.
Create a Java class with serialVersionUID and demonstrate changing it due to class modification. Explain the reasons behind your changes.
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Consider what fields you might add or modify.
Question 6.
Explain the risks associated with not declaring a serialVersionUID in your class when modifying its structure. Provide a specific example.
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Reflect on how class changes might confuse serial processes.

4 more questions in this section. Enroll free to practise them all.