Practice Built-in Java Annotations (7.1.3) - Annotations and Reflection API

Practice: Built-in Java Annotations

Lesson 7.1.3Annotations and Reflection API

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9 questions

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5 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
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does the @Override annotation do?
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Think about what happens when a method has the same signature as its parent.
Question 2.
What does @Deprecated signify?
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Ask yourself if there are new alternatives available.
3Question 3.
What is the purpose of the @Override annotation?
- To indicate that a method is new
- To show that a method is deprecated
- To signify method overriding
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Recall when you use this annotation with a method signature.
4Question 4.
The @Deprecated annotation...
- True
- False
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Think about how libraries inform users of changes.
Question 5.
Create a custom annotation to log method execution time. Include @Retention and @Target annotations in your design.
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Think about why you might want to log method execution in a system.
Question 6.
Discuss how using @SuppressWarnings can impact the maintainability of a codebase. Provide an example where it may be misused.
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Consider how unhandled warnings might lead to broken code.

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