Class getAnnotatedInterfaces() method in Java with Examples (original) (raw)

Last Updated : 28 Jan, 2022

The getAnnotatedInterfaces() method of java.lang.Class class is used to get the superinterface 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 superinterface type annotations present.
Below programs demonstrate the getAnnotatedInterfaces() method.
Example 1:

Java `

// 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 `

// 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--