Define new annotation type : Annotations Create « Language « Java Tutorial

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Java Tutorial » Language » Annotations Create

1. 11. 2. Define new annotation type

All annotation types automatically extend the Annotation interface.
Annotation is a super-interface of all annotations.
It overrides hashCode( ), equals( ), and toString() defined by Object.
It defines annotationType( ), which returns a Class object that represents the invoking annotation.
When you apply an annotation, you give values to its members.


// A simple annotation type.

@interface MyAnnotation {

  String stringValue();



  int intValue();

}



public class MainClass {

  // Annotate a method.

  @MyAnnotation(stringValue = "Annotation Example", intValue = 100)

  public static void myMethod() {

  }



}

1. 11. Annotations Create
	1. 11. 1.	Creating Annotations
	1. 11. 2.	Define new annotation type
	1. 11. 3.	Specifying a Retention Policy
	1. 11. 4.	default values in an annotation.

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