Skip first line using Open CSV reader

Question

Here is the line i am using currently

File booleanTopicFile;
// booleanTopicFile is csv file uploaded from form
CSVReader csvReader = new CSVReader(new Input         


        

Answer 1

with latest version opencsv version use -

CSVReader csvReader = new CSVReaderBuilder(new FileReader("book.csv")).withSkipLines(1).build()

Answer 2

You can also use withFilter:

watFileCsvBeans = new CsvToBeanBuilder<ClassType>(isr)
  .withType(ClassType.class)
  .withIgnoreLeadingWhiteSpace(true)
  // CsvToBeanFilter with a custom allowLine implementation
  .withFilter(line -> !line[0].equals("skipme"))
  .build()
  .parse();

Answer 3

I found this question and response helpful, I'd like to expand on Christophe Roussy's comment. In the latest opencsv (2.3 as of this writing) The actual line of code is:

new CSVReader( new StringReader(csvText), CSVParser.DEFAULT_SEPARATOR,
               CSVParser.DEFAULT_QUOTE_CHARACTER, 1);

Note it uses CSVParser instead of CSVReader.

Answer 4

This constructor of CSVReader class will skip 1st line of the csv while reading the file.

CSVReader reader = new CSVReader(new FileReader(file), ',', '\'', 1);

Answer 5

At least since version 3.8 you can use the CSVReaderBuilder and set it to skip the first line.

Example:

CSVReader reader = new CSVReaderBuilder(inputStreamReader)
                .withFieldAsNull(CSVReaderNullFieldIndicator.EMPTY_SEPARATORS)
                // Skip the header
                .withSkipLines(1)
                .build();