Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens to superclass fields during serialization if the superclass is not serializable?
💡 Hint: Think about what gets saved when an object is serialized.
Question 2
Easy
In the example of Employee and Person, what attribute would be missing if Person isn't serializable?
💡 Hint: Focus on the fields defined in the superclass.
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
If a superclass is not serializable, its fields will be:
- Serialized
- Not Serialized
- Partially Serialized
💡 Hint: Remember how Java defines serialization with respect to class hierarchies.
Question 2
True or False: An Employee class that extends a non-serializable Person class can retain the nationality attribute.
- True
- False
💡 Hint: Think about the serialization rules again.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a Java class hierarchy with a base class that is not serializable. Describe what happens when you serialize an object of a subclass.
💡 Hint: Clarify how serialization treats base and derived classes.
Question 2
Propose a method to ensure that all classes in a complex hierarchy are serializable without repetitive code.
💡 Hint: Think about how inheritance can help reduce redundancy.
Challenge and get performance evaluation