In Java, the @Inherited annotation is used to indicate that an annotation should be inherited by subclass methods and fields. This means that if a superclass is annotated with a particular annotation, and the @Inherited annotation is applied to that annotation, then the subclass will also have that annotation.
Here is an example of how the @Inherited annotation can be used:
import java.lang.annotation.*;
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
@Inherited
@interface Test {
String value() default "";
}
@Test
class SuperClass {
// code goes here
}
class SubClass extends SuperClass {
// code goes here
}
In this example, the @Test annotation is applied to the SuperClass class, and the @Inherited annotation is applied to the @Test annotation. This means that the SubClass class will also have the @Test annotation, even though it is not explicitly annotated.
The @Inherited annotation is only applicable to class-level annotations, and it has no effect on method-level or field-level annotations.