How to determine the delimiter in CSV file

Question

I have a scenario at which i have to parse CSV files from different sources, the parsing code is very simple and straightforward.

        String csvFile = \         


        

Answer 1

univocity-parsers supports automatic detection of the delimiter (also line endings and quotes). Just use it instead of fighting with your code:

CsvParserSettings settings = new CsvParserSettings();
settings.detectFormatAutomatically();

CsvParser parser = new CsvParser(settings);
List rows = parser.parseAll(new File("/path/to/your.csv"));

// if you want to see what it detected
CsvFormat format = parser.getDetectedFormat();

Disclaimer: I'm the author of this library and I made sure all sorts of corner cases are covered. It's open source and free (Apache 2.0 license)

Hope this helps.