Class getAnnotationsByType() method in Java with Examples Last Updated : 27 Dec, 2019 Comments Improve Suggest changes Like Article Like Report The getAnnotationsByType() method of java.lang.Class class is used to get the annotations of the specified annotation type present in this class. The method returns an array of annotations for the specified annotation type. Syntax: public A[] getAnnotationsByType(Class<T> annotationClass) Parameter: This method accepts a parameter annotationClass which is the type of the annotation to get. Return Value: This method returns an array of annotations for the specified annotation type. Exception: This method throws: NullPointerException: if the given annotation class is null. Below programs demonstrate the getAnnotationsByType() method. Example 1: Java // Java program to demonstrate // getAnnotationsByType() method import java.util.*; import java.lang.annotation.*; // create a custom Annotation @Retention(RetentionPolicy.RUNTIME) @interface Annotation { // This annotation has two attributes. public String key(); public String value(); } // call Annotation for method // and pass values for annotation @Annotation(key = "GFG", value = "GeeksForGeeks") public class Test { public Object obj; public static void main(String[] args) throws ClassNotFoundException { // returns the Class object for this class Class myClass = Test.class; System.out.println( "Class represented by myClass: " + myClass.toString()); // Get the annotation // using getAnnotationsByType() method System.out.println( "Annotation of myClass of type Annotation: " + Arrays.toString( myClass .getAnnotationsByType( Annotation.class))); } } Output: Class represented by myClass: class Test Annotation of myClass of type Annotation: [@Annotation(key=GFG, value=GeeksForGeeks)] Example 2: Java // Java program to demonstrate // getAnnotationsByType() method import java.util.*; import java.lang.annotation.*; @Deprecated public class Test { public Object obj; public static void main(String[] args) throws ClassNotFoundException { try { // returns the Class object for this class Class myClass = Test.class; System.out.println( "Class represented by myClass: " + myClass.toString()); // Get the annotation // using getAnnotationsByType() method System.out.println( "Annotation of myClass of type Deprecated: " + Arrays.toString( myClass .getAnnotationsByType( Deprecated.class))); } catch (Exception e) { System.out.println(e); } } } Output: Class represented by myClass: class Test Annotation of myClass of type Deprecated: [@java.lang.Deprecated()] Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#getAnnotationsByType-java.lang.Class- Comment More infoAdvertise with us Next Article Class getAnnotationsByType() method in Java with Examples S srinam Follow Improve Article Tags : Java Java-lang package Java-Functions Java.lang.Class Practice Tags : Java Similar Reads Class getAnnotations() method in Java with Examples The getAnnotations() method of java.lang.Class class is used to get the annotations present in this class. The method returns an array of annotations present. Syntax: public Annotation[] getAnnotations() Parameter: This method does not accepts any parameter. Return Value: This method returns an arra 2 min read Class getAnnotation() method in Java with Examples The getAnnotation() method of java.lang.Class class is used to get the annotation of the specified annotation type, if such an annotation is present in this class. The method returns that class in the form of an object. Syntax: public T getAnnotation(Class<T> annotationClass) Parameter: This m 2 min read Class getDeclaredAnnotationsByType() method in Java with Examples The getDeclaredAnnotationsByType() method of java.lang.Class class is used to get the declared annotations of the specified declared annotation type present in this class. The method returns an array of declared annotations for the specified declared annotation type. Syntax: public A[] getDeclaredAn 2 min read Field getAnnotationsByType() method in Java With Examples The getAnnotationsByType() method of java.lang.reflect.Field is used to return annotations that are associated with this field element. This is an important method to get annotation for Field object. If there are no annotations associated with this Field element, the return empty array. The caller c 2 min read Package getAnnotationsByType() method in Java with Examples The getAnnotationsByType() method of java.lang.Package class is used to get the annotations of the specified annotation type present in this class. The method returns an array of annotations for the specified annotation type. Syntax: public A[] getAnnotationsByType(Class<T> annotationClass) Pa 2 min read Like