24.5. What are Annotations?

Try these first

1. 1.

   What symbol is used to denote annotations in Java?

   Hint

   Think of how you call your annotations in the code.

2. 2.

   Name one built-in Java annotation for indicating method override.

   Hint

   Think about marking methods when you modify their inherited behavior.

3. 3.

   What does the '@Override' annotation indicate?

   • True
   • False

   Hint

   Think about inheritance and method functionality.

4. 4.

   What keyword do you use to declare a custom annotation?

   • @annotation
   • @interface
   • @custom

   Hint

   Consider how you define new classes.

5. 5.

   Create a custom annotation in Java that can be applied to fields and methods, specifying its retention policy.

   Hint

   What do you need to ensure your annotation is versatile?

6. 6.

   Write a method that demonstrates the use of reflection to retrieve an annotation from a method.

   Hint

   Think about the steps you take to identify and retrieve annotations before executing any logic.