Additional Notes
How do you declare an annotation with RetentionPolicy.RUNTIME?
Track: Java
Topic: Java Annotations
Focus: Retention Policies
Java: Retention Policies
Answer
Use @Retention(RetentionPolicy.RUNTIME). Frame the concept in practical terms so you can explain it during interview discussion.
To create an annotation that is accessible at runtime, specify RetentionPolicy.RUNTIME in the @Retention annotation. This ensures the annotation is retained in the bytecode and available for reflection-based processing.
To create an annotation that is accessible at runtime, specify RetentionPolicy.RUNTIME in the @Retention annotation. This ensures the annotation is retained in the bytecode and available for reflection-based processing.
Topics: Java Java Annotations Retention Policies