JavaBeat

  • Home
  • Java
    • Java 7
    • Java 8
    • Java EE
    • Servlets
  • Spring Framework
    • Spring Tutorials
    • Spring 4 Tutorials
    • Spring Boot
  • JSF Tutorials
  • Most Popular
    • Binary Search Tree Traversal
    • Spring Batch Tutorial
    • AngularJS + Spring MVC
    • Spring Data JPA Tutorial
    • Packaging and Deploying Node.js
  • About Us
    • Join Us (JBC)
  • Privacy
  • Contact Us

How To Get Implementing Interfaces Name For A Class

April 24, 2014 by Krishna Srinivasan Leave a Comment

This example illustrates how to get the implemented interfaces names of a particular class. If you are aware of the java.lang.Class, it has methods for knowing the details of a class. One of the method defined in that class is Class.getInterfaces() which is useful for getting all the interfaces names which it is implemented. This method returns the array of java.lang.Class instances. With that object array, you can invoke the getName() method to get the name of the class. Note that, each instance has “class” variable which returns the java.lang.Class for that particular object. By using the getName() method, one could get the name of the class.

Lets look this example.

GetImplementingInterfaceExample.java

[code lang=”java”]
package javabeat.net.core;

import java.io.IOException;

/**
* Get Implementing Interface Name Example
*
* @author Krishna
*
*/
public class GetImplementingInterfaceExample {
public static void main(String[] args) throws IOException {
Class<?> classVar[] = null;

int i = 0;

String str = new String();
classVar = str.getClass().getInterfaces();
for (Class cl : classVar) {
System.out.println("String Implemented interface (" + (i + 1) + ")"
+ classVar[i].getName());
i++;
}

Thread thread = new Thread();
classVar = thread.getClass().getInterfaces();
i = 0;
for (Class cl : classVar) {
System.out.println("Thread Implemented interface (" + (i + 1) + ")"
+ classVar[i].getName());
i++;
}
}

}
[/code]

Output…

[code]
String Implemented interface (1)java.io.Serializable
String Implemented interface (2)java.lang.Comparable
String Implemented interface (3)java.lang.CharSequence
Thread Implemented interface (1)java.lang.Runnable
[/code]

Filed Under: Java Tagged With: Java Class

About Krishna Srinivasan

He is Founder and Chief Editor of JavaBeat. He has more than 8+ years of experience on developing Web applications. He writes about Spring, DOJO, JSF, Hibernate and many other emerging technologies in this blog.

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Follow Us

  • Facebook
  • Pinterest

As a participant in the Amazon Services LLC Associates Program, this site may earn from qualifying purchases. We may also earn commissions on purchases from other retail websites.

JavaBeat

FEATURED TUTORIALS

Answered: Using Java to Convert Int to String

What is new in Java 6.0 Collections API?

The Java 6.0 Compiler API

Copyright © by JavaBeat · All rights reserved