Convert List<Model> to List<String[]> Java for write to csv using opencsv

Question

How do i put this listproduct

List<GetProductModel> listProduct = new ArrayList<>();

GetProductModel

private String ProductName,Description,Price; //getter and setter

to this list

List<String[]> list = new ArrayList<>();

so i can put list to

try (CSVWriter writer = new CSVWriter(new FileWriter("c:\\test\\monitor.csv"))) {
        writer.writeAll(list);
    } catch (Exception e) {
        e.printStackTrace();
    }

Answer 1

you can you use for loop or Streams like:

List<String[]> list = listProduct.stream()
                .filter(Objects::nonNull)
                .map(getProductModel -> new String[]{getProductModel.getProductName(), getProductModel.getDescription(), getProductModel.getPrice()})
                .collect(Collectors.toList());