gistfile1.txt

public class VasgateParser {

    private static final Logger log = LoggerFactory.getLogger(VasgateParser.class);

    private final String fileName;
    private static final int INDEX_OF_PHONE_NUMBER = 0;

    public VasgateParser(String fileName) {
        this.fileName = fileName;
    }

    public List<String> getListPhoneNumber() {
        List<String> listPhoneNumber = new ArrayList<String>();
        Reader in = null;
        try {
        in = new FileReader(fileName);
        Iterable<CSVRecord> records = CSVFormat.RFC4180.parse(in);
            for (CSVRecord record : records) {
                String phoneNumber = record.get(INDEX_OF_PHONE_NUMBER);
                listPhoneNumber.add(phoneNumber);
            }
        } catch (Exception e) {
            e.printStackTrace();
            log.error(e.getMessage());
        } finally {
            try {
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
                log.error(e.getMessage());
            }
        }
        return listPhoneNumber;
    }
    
}