Description: Annotation is a note added to a document or a piece of software to provide additional information. In the context of software development, annotations are metadata that can be added to classes, methods, or variables to describe their behavior or characteristics. These notes do not affect the execution of the program but are useful for documentation, validation, and configuration of development tools. Annotations can be used to indicate how a particular element should be treated, such as in the case of security annotations, which can specify which users have access to certain resources. Additionally, annotations can be processed by build tools or at runtime to generate additional code, perform validations, or even modify the behavior of the program. In languages like Java and C#, annotations are an integral part of the ecosystem, allowing developers to create more robust and maintainable applications.
