read-file

	private static <T> List<T> readFile(
			String fileName, 
			Supplier<List<T>> listSupplier,
			Function<String, T> converter) throws IOException {
		List<T> list = listSupplier.get();
		FileInputStream inputStream = null;
		try {
			ClassLoader classLoader = Puzzle01.class.getClassLoader();
			File file = new File(classLoader.getResource(fileName).getFile());
			inputStream = new FileInputStream(file);
			BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
			String line;
			while ((line = reader.readLine()) != null) {
				list.add(converter.apply(line));
			}
			reader.close();
		} finally {
			inputStream.close();
		}
		return list;
	}