cannot find symbol error - help required please..

[trueblue]

Can anyone help with this please?
WebPageData is a class to hold all the words from a webpage as a set of strings along with the url for the webpage which is stored as a string.
Finder is a class that holds and searches instances of the WebPageData class.
The WebPageData class is complete and working no problem.
In the code below I have come to a full stop with the searchFor(String) method in the Finder class because the getNumOfHits(String) method is reporting an error; cannot find symbol - method getNumOfHits(java.lang.String), and it will no doubt produce the same error for getUrl(). Can someone please point out how I can amend these two methods in the Finder class to reference instances of the WebPageData class so I can kick myself. Both classes currently exist as part of the same project and the Finder class has a 'uses' relationship with the WebPageData class. Many thanks.

import java.util.*;

/**
 * A Class to hold all the words from a particular webpage as a set of strings
 * along with the url for the webpage stored as a string.
 */
public class WebPageData
{
   private Set<String> wordSet;
   private String url;
   
   public WebPageData(String text, String theUrl)
   {
      super();
      this.wordSet = getWordsIn(text);
      this.url = theUrl;
   }
   
   /**
    * The String argument is split into individual words
    * and the words are assigned to an array.
    * The elements of the array are then added to a set.
    * The method finally returns the set.
    */
   public static Set<String> getWordsIn(String text)
   {
      String[] wordArray = text.split(" ");
      Set<String> words = new HashSet<String>();
      
      for (int count = 0; count < wordArray.length; count++)
      {
         words.add(wordArray[count]);
      }
      return words;      
   }

   
   /**
    * Returns the set assigned to wordSet.
    */
   public Set<String> getWordSet()
   {
      return this.wordSet; 
   }
   
   /**
    * Returns the String assigned to url.
    */
   public String getUrl()
   {
      return this.url;
   }
   
   /**
    * The String argument is converted into a set
    * by the re-use of the getWordsIn(String) method
    * and is assigned to a local variable.
    * The newly created set is then copied to keep
    * the original set intact, and the intersection of
    * the copied set and the wordSet instance variable
    * is created. Finally the size of the intersection
    * is returned.
    */
   public int getNumOfHits(String searchString)
   {
      Set<String> wordsToFind = getWordsIn(searchString);
      Set<String> intersection = new HashSet<String>(wordSet);
      intersection.retainAll(wordsToFind);
      return intersection.size();
   }
}

import java.util.*;

/**
 * A Class to hold and search instances of the WebPageData class.
 */
public class Finder 
{
   
   private Set<WebPageData> scannedSites;


   public Finder()
   {
      super();
      scannedSites = new HashSet<WebPageData>();
   }


   /**
    * Adds the WebPageData argument to the set referenced 
    * by the scannedSites instance variable.
    */
   public void addSite(WebPageData aPage)
   {
      this.scannedSites.add(aPage);    
   }
  
     
   /**
    * pagesFound is declared as an empty instance of the
    * HashMap class that implements the Map interface.
    * For each instance of WebPageData in the scannedSites
    * set, the number of hits the String argument has
    * with it should be returned. If the number of hits is
    * greater than zero then the url String and the number of
    * hits Integer should be added to the pagesFound Map.
    */
   public void searchFor(String aString)
   {
      Map<String, Integer> pagesFound = new HashMap<String, Integer>();
      
      for (Object scan : this.scannedSites)
      {
         int hits = ???.getNumOfHits(aString);
         if (hits > 0)
         {
            pagesFound.put(???.getUrl(), ???.getNumOfHits()); 
         }
      }
   }  
}

[hardwired]

   public void searchFor(String aString)
   {
      Map<String, Integer> pagesFound = new HashMap<String, Integer>();

      //////      Set<WebPageData> scannedSites      //////
      // According to this member variable declaration each
      // element of the Set [i]scannedSites[/i] is of type
      // WebPageData. So that's what you get when you access
      // the set elements in this [i]for–each[/i] loop.
      for (WebPageData pageData : this.scannedSites)
      {
         int hits = pageData.getNumOfHits(aString);
         if (hits > 0)
         {
            pagesFound.put(pageData.getUrl(), pageData.getNumOfHits(aString)); 
         }
      }
   }

[trueblue]

   public void searchFor(String aString)
   {
      Map<String, Integer> pagesFound = new HashMap<String, Integer>();

      //////      Set<WebPageData> scannedSites      //////
      // According to this member variable declaration each
      // element of the Set [i]scannedSites[/i] is of type
      // WebPageData. So that's what you get when you access
      // the set elements in this [i]for–each[/i] loop.
      for (WebPageData pageData : this.scannedSites)
      {
         int hits = pageData.getNumOfHits(aString);
         if (hits > 0)
         {
            pagesFound.put(pageData.getUrl(), pageData.getNumOfHits(aString)); 
         }
      }
   }

thank you thats ace.
i also omitted the String argument within the if statement.
here is my completed code which also now includes a display of the number of words found at each url.
have a good one!

public void searchFor(String aString)
   {
      Map<String, Integer> pagesFound = new HashMap<String, Integer>();
      
      for (WebPageData pageData : this.scannedSites)
      {
         int hits = pageData.getNumOfHits(aString);
         if (hits > 0)
         {
            pagesFound.put(pageData.getUrl(), pageData.getNumOfHits(aString)); 
         }
         System.out.println(pageData.getNumOfHits(aString) + " words(s) matched at " + pageData.getUrl());
      }
   }