1. class HashBook {
   
     HashMap wordTable = new HashMap(); //declaring variables for the class
     String[] bookWords;
     String[] keys = new String[0];
     int[] counts = new int[0];
   
     HashBook(String[] tempWords) //the classes constructor
     {
       bookWords = tempWords;
     }
   
   
   //the classes three functions.....
   
     void fillHash() {  //a function that runs through long array for words and picks out all the different ones and counts them
       for (int i=0; i<bookWords.length; i++)
       {
         String oneWord = bookWords[i];
         oneWord = oneWord.toLowerCase();
         if (wordTable.containsKey(oneWord)) {
           int val =  (Integer)wordTable.get(oneWord);
           wordTable.put(oneWord, val + 1);
         }
         else {
           wordTable.put(oneWord, 1);
         }
       }
     }
   
     String[] hashWords() { //a function that outputs a string array full of different words
       Iterator i = wordTable.entrySet().iterator();
   
         while (i.hasNext ()) {
         Map.Entry me = (Map.Entry)i.next();
         String keyName = (String)me.getKey();
         keys = append(keys, keyName);
       }
       return keys;
     }
   
     int[] hashCount() { //a function that outputs a int array full fo word counts
       Iterator i = wordTable.entrySet().iterator(); 
   
         while (i.hasNext ()) {
         Map.Entry me = (Map.Entry)i.next();
         int count = (Integer)me.getValue();
         counts = append(counts, count);
       }
       return counts;
     }
   }

Any help at all would be appreciated thank you