private String searchingFile(final String name) throws IOException {
        BufferedReader br = new BufferedReader(new FileReader(file));
        try {
            String line;
            while ((line = br.readLine()) != null) {
                StringTokenizer str = new StringTokenizer(line, ",");
                if (str.nextToken().equals(name)) {
                    return str.nextToken();
                }
            }
            return null;

        } finally {
            br.close();
        }
    }