import com.datacsv.CSVReader; import com.datacsv.CSVWriter; public class CSVExample { public static void main(String[] args) { CSVReader reader = new CSVReader("data.csv"); DataTable dataTable = reader.read(); dataTable.print(); dataTable.setValue(0, 0, "John"); dataTable.setValue(0, 1, "Doe"); CSVWriter writer = new CSVWriter("output.csv"); writer.write(dataTable); } }