How to prevent CSVPrinter from rewriting data again

Question

I'm using this method for writing data into csv but the problem is that it is rewriting data again below the old data. How can I prevent it from doing this ? I tried to set the FileWriter writer = new FileWriter(answerFile, false); but then its only writing the last array in the csv file.
I have this code:

public static void writeCsv(List<String> myList) throws IOException {
    FileWriter writer = new FileWriter(answerFile, true);
    CSVPrinter csvPrinter = new CSVPrinter(writer, CSVFormat.DEFAULT);
    List<String[]> myListSplitted = myList.stream().map(row -> row.split(",")).collect(Collectors.toList());
    csvPrinter.printRecords(myListSplitted);
    csvPrinter.flush();
    csvPrinter.close();
}

This the method in which I'm calling this method:

    public static void appendAnswers() throws IOException {
    try (BufferedReader br = new BufferedReader(new FileReader(questionFile))) {
        String csvRow;
        int counter = 0;
        String[] csvArr;
        String data;
        br.readLine();
        List<String> myList = new ArrayList<>();
        while ((csvRow = br.readLine()) != null) {
            csvArr = csvRow.split(",");
            csvArr = Arrays.copyOf(csvArr, csvArr.length + 1);
            csvArr[csvArr.length - 1] = answers.get(counter);
            data = Arrays.toString(csvArr).replace("[", "").replace("]", 
            "").trim();
            counter++;
            myList = new ArrayList<String>(Arrays.asList(data.split("\n")));
        }
        writeCsv(myList);

    }

Answer 1

From the manual page :

Prints values in a CSV format.

Values can be appended to the output by calling the print(Object) method. 

Basically, CSVPrinter emulates a printer. A printer appends new lines to whatever has already been printed.

If you want to overwrite, use FileWriter more directly rather than a printer emulator.