The getGenericInterfaces() method of java.lang.Class class is used to get the type of interfaces directly implemented by this entity. This entity can be a class or an interface. The method returns an array of type of interfaces directly implemented by this entity.
Syntax:
public Type[] getGenericInterfaces()
Parameter: This method does not accept any parameter.
Return Value: This method returns an array of type of interfaces directly implemented by this entity.
Below programs demonstrate the getGenericInterfaces() method.
Example 1:
// Java program to demonstrate// getGenericInterfaces() method  import java.util.*;  public class Test {    public static void main(String[] args)        throws ClassNotFoundException    {          // returns the Class object for this class        Class myClass = Class.forName("Test");          System.out.println("Class represented by myClass: "                           + myClass.toString());          // Get the type of interfaces of myClass        // using getGenericInterfaces() method        System.out.println(            "GenericInterfaces of myClass: "            + Arrays.toString(                  myClass.getGenericInterfaces()));    }} |
Output:
Class represented by myClass: class Test GenericInterfaces of myClass: []
Example 2:
// Java program to demonstrate// getGenericInterfaces() method  import java.util.*;  interface Arr {}  public class Test implements Arr {      public static void main(String[] args)        throws ClassNotFoundException    {        // returns the Class object        Class myClass = Class.forName("Test");          // Get the type of interfaces of myClass        // using getGenericInterfaces() method        System.out.println(            "GenericInterfaces of myClass: "            + Arrays.toString(                  myClass.getGenericInterfaces()));    }} |
Output:
GenericInterfaces of myClass: [interface Arr]
Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#getGenericInterfaces–
