public void initialize(String record)
   {
    	System.out.println(record);
    	Huffman h;
    	StringTokenizer toke = new StringTokenizer(record);
    	int i = 0; 
    	while(toke.hasMoreTokens() )//reads a <letter, freq> into the array
    	{
    		h = new Huffman();
    		h.letter = toke.nextToken();//reads a lette
    		String temp = toke.nextToken();//reads a frequence
    		h.freq = Integer.parseInt("" + temp);
    		TreeNode aux = new TreeNode();
    		aux.data = h;
    		x[i] = aux;
    		i++;
    	}
   }