Practice Deserialization (20.4) - Serialization and Deserialization - Advanced Programming

Practice: Deserialization

Lesson 20.4Serialization and Deserialization

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9 questions

Flashcard drill
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
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is deserialization in Java?
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Think about how we restore objects from storage.
Question 2.
What Java class is used for reading serialized objects?
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It's part of the java.io package.
3Question 3.
What is the main purpose of deserialization in Java?
- To save an object into a byte stream
- To reconstruct an object from a byte stream
- To check if an object is serializable
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Think of it like unpacking a box.
4Question 4.
True or False: An ObjectInputStream can read any Java object regardless of its serialization status.
- True
- False
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Remember the requirement for serialization.
Question 5.
You serialized an object but forgot to implement the Serializable interface. When you try to deserialize it, what will happen? Describe how you would resolve this issue.
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Review the conditions required for a class to be serializable.
Question 6.
In a web application, a user’s preferences are stored in a file using serialization. Describe how you would implement deserialization upon the user logging back into the application.
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Think about user experience when reading stored data.

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