StringTokenizer t = new StringTokenizer(categories, ","); while (t.hasMoreTokens()) { String category = t.nextToken(); categorySet.add(category); }
buildSetFromString(categories, categorySet);
	public void setCategories(String categories) {		StringTokenizer t = new StringTokenizer(categories, ",");		while (t.hasMoreTokens()) {			String category = t.nextToken();			categorySet.add(category);		}	}	