private HashSet<String> getStopwords(HashSet<String> stopHash, String file){
		try{
			FileReader fReader = new FileReader(file);
			BufferedReader bReader = new BufferedReader(fReader);
			String line = null;
			while((line = bReader.readLine().trim()) == null){
				if(stopHash.contains(line)){
					continue;
				}
				stopHash.add(line);
			}
			bReader.close();
			fReader.close();
		}
		catch(Exception exp){
			exp.printStackTrace();
			System.exit(1);
		}
		return stopHash;
	}