opencsv

I have gone through other questions regarding this on StackOverflow but libraries mentioned there only allow to read or write. Some of them do allow partial read or write like SuperCSV but no library can be used for updating value of a particular cell. Is there some other library that can be used or do I need to do it manually? Read in the CSV, modify the cell you want, then write it back to the file. No, there is no way to directly update the cell in CSV file. You can read CSV line by line and then column by column , update the cell (content) and write to a new file. And if you know the

Am using opencsv 2.3 and it does not appear to be dealing with escape characters as I expect. I need to be able to handle an escaped separator in a CSV file that does not use quoting characters. Sample test code: CSVReader reader = new CSVReader(new FileReader("D:/Temp/test.csv"), ',', '"', '\\'); String[] nextLine; while ((nextLine = reader.readNext()) != null) { for (String string : nextLine) { System.out.println("Field [" + string + "]."); } } and the csv file: first field,second\,field and the output: Field [first field]. Field [second]. Field [field]. Note that if I change the csv to

Im starting to design a program that will automate the process of finding and identifying strings correctly based on similar strings and their identities that have been found and saved into a master CSV/Excel file. Right now I want to design it properly so I dont run into issues later when implementing the CSV/Excel read writing part. I will probably use OpenCSV to write and read the files, so my question is more about how I can edit the file. Last time I dealt with editing CSV files I had to rewrite each line to a new or existing file rather than just editing a specific line. Is this the only

I am working on CSV parser requirement and I am using supercsv parser library. My CSV file can have 25 columns(separated by tab(|)) and up to 100k rows with additional header row. I would like to ignore white-space only lines and lines containing less than 25 columns. I am using IcvBeanReader with name mappings(to set csv values to pojo) and field processors(to handle validations) for reading a file. I am assuming that Supercsv IcvBeanReader will skip white space lines by default. But how to handle if a row contains less than 25 column numbers? You can easily do this by writing your own

I am developing an android app in netbeans. I am trying to read CSV file using opencsv. When I put the file in resources folder and try to read it from there, there's an error while building saying invalid resource directory. Where should I store csv file so that it can be read each time the app starts? you should put csv file in assets folder .. InputStreamReader is = new InputStreamReader(getAssets() .open("filename.csv")); BufferedReader reader = new BufferedReader(is); reader.readLine(); String line; while ((line = reader.readLine()) != null) { } Some advices; Create an object for holding