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Class getAnnotatedInterfaces() method in Java with Examples

  • Last Updated : 27 Dec, 2019

The getAnnotatedInterfaces() method of java.lang.Class class is used to get the superinteface type annotations present in this class. The method returns an array of annotations present.

Syntax:

public Annotation[] getAnnotatedInterfaces()

Parameter: This method does not accepts any parameter.

Return Value: This method returns an array of superinteface type annotations present.

Below programs demonstrate the getAnnotatedInterfaces() method.



Example 1:




// Java program to demonstrate
// getAnnotatedInterfaces() method
  
import java.io.*;
import java.util.*;
import java.lang.annotation.*;
  
// create a custom Annotation
@Retention(RetentionPolicy.RUNTIME)
public @interface CustomInterface {
}
  
@CustomInterface
interface CustomInterfaceImp {}
  
class Test implements CustomInterfaceImp{
  
    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 AnnotatedInterfaces 
        // using getAnnotatedInterfaces() method
        System.out.println(
                "AnnotatedInterfaces of myClass: "
            + Arrays.toString(myClass
                .getAnnotatedInterfaces()));
    }
}

Output:

Class represented by myClass: class Test
AnnotatedInterfaces of myClass: [sun.reflect.annotation.AnnotatedTypeFactory$AnnotatedTypeBaseImpl@4aa298b7]

Example 2:




// Java program to demonstrate
// getAnnotatedInterfaces() method
  
import java.io.*;
import java.util.*;
import java.lang.annotation.*;
  
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 AnnotatedInterfaces
        // using getAnnotatedInterfaces() method
        System.out.println(
                "AnnotatedInterfaces of myClass: "
            + Arrays.toString(myClass
                .getAnnotatedInterfaces()));
    }
}

Output:

Class represented by myClass: class Test
AnnotatedInterfaces of myClass: []

Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#getAnnotatedInterfaces–

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