Add a list of integers into a csv file (JAVA)

Question

All I want is to add a list of numbers from an algorithm (which is really long so I won't show it here but gave an output of [2039, 25553, 189030, 1449869, 134295, 352258, 1588788, 718293, 353578, 1495712, 539563, 1691741, 1032543, 362844, 1143463, 4671463])

List<Integer> List1 = new ArrayList<>();

to a csv file and produce a line graph from it. I've done some searching for answers but I couldn't find anything specific for this. Any help will be much appreciated, thank you!

Answer 1

public class Try
{
    public static void main(String[] args) throws IOException
    {
        List<Integer> List1 = new ArrayList<>();

        //For the example, i populate the list
        List1.add(123);
        List1.add(456);
        List1.add(789);

        PrintWriter outFile = new PrintWriter(new FileWriter("outNumbers.csv"));

        List1.stream().forEach(i->outFile.print(i + ", "));

        outFile.close();
    }
}