What are the uses of annotations in java8

This article mainly introduces the relevant knowledge of the usage of annotations in java8, the content is detailed and easy to understand, the operation is simple and fast, and has a certain reference value. I believe you will gain something after reading this article on the usage of annotations in java8. Let's take a look at it.

1. Define wrapper comments, including an array of actual comments.

Interface Hints {Hint [] value ();} @ Repeatable (Hints.class) @ interface Hint {String value ();}

2. Annotation container.

Hints ({@ Hint ("hint1"), @ Hint ("hint2")}) class Person {}

3. Repeatable notes. The java compiler can automatically set @ Hint internally. This is important for reading comment information through reflection.

@ Hint ("hint1") @ Hint ("hint2") class Person {} this is the end of the article on "what are the uses of annotations in java8". Thank you for reading! I believe you all have a certain understanding of the knowledge of "what is the use of annotations in java8". If you want to learn more, you are welcome to follow the industry information channel.