Enrol to start learning
Reading is open to everyone. Enrolling is free, and it is what unlocks the audio lessons, practice tests and progress tracking.
20.9. Serializing Collections and Arrays
This section
Practice test
11 questions on this section. Wrong answers show you what to read again.
Sign up to take itWhole chapter
Revision test
Mixed questions from across the chapter. Your answers get marked.
Sign up to take itQuick
Flashcard drill
2 cards from this lesson. Good the night before a test.
Try these first
- 1.
What interface must be implemented by custom objects to enable serialization?
Hint
Think about the keywords we've discussed related to serialization.
- 2.
Name a Java collection that is serializable.
Hint
Recall the collection types we've covered.
- 3.
What must custom objects within a serializable collection implement?
- Cloneable
- Serializable
- Externalizable
Hint
Think about the specific interface we discussed.
- 4.
True or False: The HashMap collection in Java cannot be serialized.
- True
- False
Hint
Recall the collections we mentioned during the session.
- 5.
Design and serialize a class that contains a List of custom objects, then demonstrate understanding of serialization limitations.
Hint
Focus on real-world implications of serialization in application design.
- 6.
Explain and demonstrate the process of how to serialize a collection containing nested objects. Identify any issues that may arise.
Hint
How do nested relationships affect serialization requirements?
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
1 more question available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting