Java8-Annotations

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import java.lang.annotation.ElementType;import java.lang.annotation.Repeatable;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target;public class Annotations1 {    @Target({ElementType.TYPE_PARAMETER, ElementType.TYPE_USE})    @interface MyAnnotation {    }    @Retention(RetentionPolicy.RUNTIME)    @interface Hints {        Hint[] value();    }    @Repeatable(Hints.class)    @Retention(RetentionPolicy.RUNTIME)    @interface Hint {        String value();    }    @Hint("hint1")    @Hint("hint2")    class Person {    }    public static void main(String[] args) {        Hint hint = Person.class.getAnnotation(Hint.class);        System.out.println(hint);   // null        Hints hints1 = Person.class.getAnnotation(Hints.class);        System.out.println(hints1.value().length);  // 2        Hint[] hints2 = Person.class.getAnnotationsByType(Hint.class);        System.out.println(hints2.length);  // 2    }}

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