![]() Then, we’re iterating through the methods and checking each method if it is annotated with the annotation. Public class ParentClass īy calling getDeclaredMethods(), we’re getting the methods of our AnnotatedMethods class. Let’s look at the annotation as an example: It simply provides information that can be used at compile time or runtime to perform further processing. We can further extend the core functionality to provide our custom annotations.Īn annotation by itself does not perform any action. Some common examples of annotations are and These are built-in annotations provided by Java through the java.lang package. This article is accompanied by a working code example on GitHub.Īn annotation is preceded by the symbol. In this article, we will discuss the topic of annotations and demonstrate the power of annotation processing with a real-world example. ![]() The java.lang package provides some core annotations and also gives us the capability to create our custom annotations that can be processed with annotation processors. An annotation processor processes these annotations at compile time or runtime to provide functionality such as code generation, error checking, etc. ![]() Annotations provide information to a program at compile time or at runtime based on which the program can take further action. An annotation is a construct associated with Java source code elements such as classes, methods, and variables.
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