Java Interview Questions: Annotations



What is Annotation? Annotations are nothing but  meta-data added to the Java Elements.   Annotations define a java type exactly similar to Classes,Enums,Interfaces and they can be applied to several Java Elements. How Custom Annotation are created? Annotation is defined using @ along with interface keyword .There are two meta annotations required to create custom annotationas shown in example below.           @Target(ElementType.CLASS)           @Retention(RetentionPolicy.CLASS)           } The Meta-Annotations that would be covered in the forthcoming sections are, Target Annotation @Target:

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