subWords method2

import java.util.ArrayList;
import java.util.List;
import java.util.Iterator;
import java.util.Random;
import java.util.StringTokenizer;
/**
 * Write a description of class AlanisMorissetteLyrics here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class AlanisMorissetteLyrics
{


    /**
     * Constructor for objects of class AlanisMorissetteLyrics
     */
    public AlanisMorissetteLyrics()
    {

    }

    /**
     * An example of a method - replace this comment with your own
     *
     * @param  y   a sample parameter for a method
     * @return     the sum of x and y
     */
   /* public String subWords(List <String>)
    {


    }*/


    public String subNoun(String string, ArrayList<String> nouns)
    {
        String s = string;
        int index = 0;
        while (index <= nouns.size() -1)
            {

               return nouns.get(0);
            }


            return nouns.get(0);
}

public String subVerb(String string, ArrayList<String> verbs)
    {
        String s = string;
        int index = 0;
        while (index <= verbs.size() -1)
            {

               return verbs.get(0);
            }


            return verbs.get(0);
}

public String subAdj (String string, ArrayList<String> adjs)
    {
        String s = string;
        int index = 0;
        while (index <= adjs.size() -1)
            {

               return adjs.get(0);
            }


            return adjs.get(0);
}

public String subWords(String string, ArrayList<String> nouns, ArrayList<String> verbs,
ArrayList <String> adjs)
{
String[] result = string.split("\\s");
for (String word : result)
   {

       if (word.equals("noun"))
                {
                    System.out.println("" + subNoun(word, nouns));
                   // return subNoun (word, nouns);
                   string.replace("noun", subNoun(word, nouns));
                }

           if (word.equals("verb"))
                {
                    System.out.println("" + subVerb(word, verbs));
                    string.replace("verb",  subVerb(word, verbs));
                    ;
                }

              if (word.equals("adjective"))
                {
                  System.out.println("" + subAdj(word, adjs));
                  //return subAdj (word, adjs);
                  string.replace("adjective", subAdj(word, adjs));
                }

    }
    return string;

}

//string.replace ("noun", nouns.get(0));
//string.replace ("verb", verbs.get(0));
//string.replace ("adjective", adjs.get(0));
/*int resultIndex = 0;

while (resultIndex <= result.size())
    {
        if (string.equals ("noun"))
            {
                string.replace("noun", nouns.getIndex(resultIndex));
            }
            resultIndex++;

        }

    if (string.equals("noun"))
    {
           System.out.println("string" + subNoun(string, nouns));
            return subNoun(string, nouns);
        }

    if (string.equals("verb"))
    {
        return subVerb(string, verbs);
    }

          if(string.equals("adjective"))
          {
                        return subAdj(string, adjs);
                    }

                    return string;
                }*/

 /*public String generate(randomNouns, randomVerbs, randomAdjectives)
    {
        randomNouns = new Random();
        randomVerbs = new Random();
        randomAdjectives = new Random();
    }*/
}