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–