Thursday 26 October 2017

How to get the list of interfaces implemented by a given class using Java Reflection


Click here to watch in Youtube : 
https://www.youtube.com/watch?v=if20F7TutsM&list=UUhwKlOVR041tngjerWxVccw

ReflectionDemo.java
import java.util.ArrayList;

/**
 * 
 * It is possible to get a list of the interfaces implemented by a given class
 *
 */
public class ReflectionDemo
{
    public static void main(String[] args)
    {

        Class<ArrayList> classObj = ArrayList.class;

        /*
         * Returns:an array of interfaces implemented by this class.
         * 
         * A class can implement many interfaces. Therefore an array of Class is
         * returned. Interfaces are also represented by Class objects in Java
         * Reflection.
         */

        Class[] classArray = classObj.getInterfaces();

        for (Class class1 : classArray)
        {
            System.out.println(class1.getName());
        }

    }

}
Output
java.util.List
java.util.RandomAccess
java.lang.Cloneable
java.io.Serializable

Click the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/ReflectionDemo_access_interfaces.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/ReflectionDemo_access_interfaces

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/6c95796df09abfb09587d07613e2e6d5f9ad024e/BasicJava/ReflectionDemo_access_interfaces/?at=master

See also:
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