java 元注解(3)–@documented和@inherited

@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Inherited
public @interface SuperClass {

    public String name() default "";
}
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
public @interface SubClass {
    public String name() default "";
}
@SuperClass
public class Super {
}
@SubClass
public class Sub extends Super{
}
public class TestInherited {
	public static void main(String[] args) {
        Class<Sub> clazz = Sub.class;
        System.out.println(clazz.isAnnotationPresent(SuperClass.class));
        System.out.println(clazz.isAnnotationPresent(SubClass.class));
        System.out.println(clazz.getAnnotation(SuperClass.class));
        System.out.println(clazz.getAnnotation(SubClass.class));
        System.out.println(Arrays.toString(clazz.getAnnotations()));
        System.out.println(Arrays.toString(clazz.getDeclaredAnnotations()));  ////自身
	}
}