Program to demonstrate how to determine Interfaces implemented by a class dynamically using Java Reflection API.
package com.hubberspot.reflection;
// Created two three interfaces just for the demo
// such as Shape, Rotation and Movable
interface Shape
{
}
interface Rotation
{
}
interface Movable
{
}
// Created a class which implements all those interfaces
class Circle implements Shape , Rotation , Movable
{
}
public class InterfacesFinding {
public static void main(String[] args) {
// Get the instance of Class of the type Circle
Class classCircle = Circle.class;
// class Class defines a method which returns
// an array of interfaces
Class[] interfacesArray = classCircle.getInterfaces();
System.out.println("Interfaces implemented by Circle class are : ");
for (int i = 0; i < interfacesArray.length; i++) {
String interfaceName = interfacesArray[i].getName();
System.out.println(i + 1 + " " +interfaceName);
}
}
}
Output of the program : 
