Class getInterfaces() method in Java with Examples
Last Updated :
27 Jan, 2022
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The getInterfaces() method of java.lang.Class class is used to get the interfaces directly implemented by this entity. This entity can be a class or an interface. The method returns an array of interfaces directly implemented by this entity.
Syntax:
public Class<T>[] getInterfaces()
Parameter: This method does not accept any parameter.
Return Value: This method returns an array of interfaces directly implemented by this entity.
Below programs demonstrate the getInterfaces() method.
Example 1:
// Java program to demonstrate getInterfaces() 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 interfaces of myClass
// using getInterfaces() method
System.out.println(
"Interfaces of myClass: "
+ Arrays.toString(
myClass.getInterfaces()));
}
}
Output:
Class represented by myClass: class Test Interfaces of myClass: []
Example 2:
// Java program to demonstrate getInterfaces() 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 interfaces of myClass
// using getInterfaces() method
System.out.println(
"Interfaces of myClass: "
+ Arrays.toString(
myClass.getInterfaces()));
}
}
Output:
Interfaces of myClass: [interface Arr]
Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#getInterfaces--
