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Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of annotations in Java?
💡 Hint: Think about additional information that doesn't change code functionality.
Question 2
Easy
Name two built-in Java annotations.
💡 Hint: Recall common annotations you've seen in code before.
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 does the @Override annotation do?
- Indicates an error
- Marks a method as overridden
- Suppress warnings
💡 Hint: Think about its role in method definitions.
Question 2
True or False: Annotations directly influence the execution of code.
- True
- False
💡 Hint: Remember their purpose is to provide additional information.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a custom annotation that logs method execution time and implement it with reflection.
💡 Hint: Think about how you'd label methods and how you could read that label using reflection.
Question 2
Explain how misuse of reflection can lead to insecure code.
💡 Hint: Consider scenarios where sensitive information might be revealed.
Challenge and get performance evaluation