public static void main(String[] args) throws UnsupportedEncodingException {
    	String folderName = "grogersinfo";
		String[][] object = getDatasetByFolderName(folderName);
		for (String[] strings : object) {
			String tmpString = Joiner.on(",").join(strings);
			String str = new String(tmpString.getBytes("UTF-8"), "UTF-8");	
			System.out.println(strings.length + " -> " + str);
			
		}
		List<String[]> lines = Arrays.asList(object);
		
		List<GrogerInfo> grogerInfos = getDatasetByFolderName2(folderName);
		for (GrogerInfo grogerInfo : grogerInfos) {
			System.out.println(grogerInfo.getId() + " - " + grogerInfo.getAddress());
		}
	}