Piglatin Converter

Hello all,
I am in an intro to Java class right now and I have an assignment due later today that converts a body of text to piglatin.

We are given a driver class which cannot be changed.

Code :

import java.util.*;
public class PigDriver{
  public static void main(String[] args){
   Scanner scan = new Scanner(System.in);
   String t = " ";
   Piglatin p =new Piglatin();
   while(t.length() > 0){
     t = scan.nextLine();
     t = t.toLowerCase();
     p.pigConvert(t);
   }
   p.pigReport();
  }
}

and I have the following code written:

Code :

import java.util.StringTokenizer;
import java.lang.String;
 
public class Piglatin{
 
  StringBuffer cookies;
 
 
  public Piglatin(){
  }
 
        public StringBuffer pigConvert(String m)
        {
                StringBuffer result = new StringBuffer();
                String delimiters = " ,.:;()[]{}\"'!@#$%^&*";
                StringTokenizer lexer;
                String token;
 
                lexer = new StringTokenizer(m, delimiters, true);
 
                while (lexer.hasMoreTokens())
                {
                        token = lexer.nextToken();
                        if (delimiters.indexOf(token) > -1)
                                result.append(token);
                        else
                                result.append(transformToken(token));
                }
 
 
 
                cookies = result;
                return cookies;
 
        }
 
 
        public static String transformToken(String original)
        {
                StringBuffer result = new StringBuffer();
                String vowels = "aeiou";
 
                String vowelRule = "way";
                String consonantRule = "ay";
 
                if (vowels.indexOf(original.substring(0, 1).toLowerCase()) > -1)
                {
                        result.append(original);
                        result.append(vowelRule);
                }
                else
                {
                        result.append(original.substring(1));
                        result.append(original.substring(0, 1));
                        result.append(consonantRule);
                }
 
                return result.toString();
        }
 
        public void pigReport(){
          System.out.println("something");
        }
 
 
  }

The problem is that I can't print the converted text to the console. Normally I would just try to write a print statement into the method that's converting it, but I must follow the driver class. I wanted to make a stringbuffer (in this case cookies) that would exist outside of the pigConvert method, but when I try to print this it prints nothing. Any help would be greatly appreciated.

Thanks so much!