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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is an annotation in Java?
💡 Hint: Think about external information added to code.
Question 2
Easy
What does the @Override annotation do?
💡 Hint: Consider how this relates to inheritance.
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
What is the main purpose of annotations in Java?
- Modify code execution
- Provide metadata
- Add comments
💡 Hint: Think about what 'metadata' means.
Question 2
True or False: Annotations can directly alter the logic of code.
- True
- False
💡 Hint: Consider how annotations are defined and what they do.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a custom annotation called @JsonSerializable that can be applied to classes, making them JSON serializable.
💡 Hint: Think about what information you'd want to mark for serialization.
Question 2
Explain how you would implement a processor that reads @JsonSerializable annotations and converts annotated classes to JSON.
💡 Hint: Consider the steps of using reflection and what library you might use for JSON operations.
Challenge and get performance evaluation