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Java Java Annotations Writing Your Own Annotation Declaring an Annotation

Tornike Shelia
Tornike Shelia
2,781 Points
Posted by Tornike Shelia
Tornike Shelia
2,781 Points

In LiveTweet.java below, declare an annotation named LiveTweet. This could hypothetically be used to send a Tweet every

LiveTweet.java

@LiveTweet

I don't get it , whats the problem ?

1 Answer

Alex Bratkovskij
Alex Bratkovskij
5,329 Points
Alex Bratkovskij
Alex Bratkovskij
5,329 Points

Hi, the issue is that you're not declaring annotation but simply using it. Before using annotations, you need to create it. Annotations are kinda like methods, but it doesn't affect your code, it affects the compiler, or just holds valuable info. To declare annotation you need to use @interface: 

@interface LiveTweet{
       //here goes your code
}

More ingo on annotations: https://docs.oracle.com/javase/tutorial/java/annotations/

How to declare them: https://docs.oracle.com/javase/tutorial/java/annotations/declaring.html