compiling Responder ACE

import java.util.Random;
import java.util.ArrayList;


/**
 * The responder class represents a response generator object.
 * It is used to generate an automatic response.
 *
 * @author     Michael Kolling and David J. Barnes
 * @version    0.1
 */
public class Responder
{
    /**
     * Construct a Responder - nothing to do
     */

    Random randomGenerator;
    private ArrayList<String> responses;

    public Responder(){
        randomGenerator = new Random();
        responses = new ArrayList<String>();
        fillResponses();
    }

    /**
     * Generate a response.
     * @return   A string that should be displayed as the response
     */
    public String generateResponse()
    {
        return "That sounds interesting. Tell me more...";
    }

     public String GetResponse()
    {
        int index = randomGenerator.nextInt(3);
        {
           return responses.get(index);
         }
        }

    public void createResponses(String response)
    {
        responses.add(response);
    }

    private void fillResponses()
    {
        createResponses("yes");
        createResponses("no");
        createResponses("maybe");
    }

}