Java annotations are used to provide meta data for your Java code. Java annotations can be used by the Java compiler, Java source code processors, or your Java applications. This Java annotations tutorial explains the basics of Java annotations.
I have a second Java Annotations tutorial video explaining how to create your own custom Java Annotations here:
https://www.youtube.com/watch?v=UlhtkjfxUUU
Here is a textual version of this Java annotations tutorial:
http://tutorials.jenkov.com/java/annotations.html
