Practice Use Cases Of Annotations And Reflection (7.2.8) - Annotations and Reflection API

Practice: Use Cases of Annotations and Reflection

Lesson 7.2.8Annotations and Reflection API

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10 questions

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4 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
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is an Annotation?
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Think about how it relates to configuring or optimizing the code.
Question 2.
What does the Reflection API allow you to do?
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Consider activities developers might want to perform during the execution of a program.
3Question 3.
What are Annotations used for?
- To improve runtime performance
- To provide metadata
- To replace class files
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Consider their role in modern software frameworks.
4Question 4.
True or False: Reflection can access private members of a class.
- True
- False
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Remember the power of Reflection and its implications on encapsulation.
Question 5.
Write a Java program that defines a custom annotation and uses Reflection to read its value from a method.
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Ensure to define your annotation with appropriate retention policy and target.
Question 6.
Explain a scenario where using the Reflection API might cause performance bottlenecks in a large application.
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Consider where Reflection is used heavily—like in iterative operations.

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