Setting a pattern with a loop

Ok, Trying to Draw an American flag

I just did the overall thing manually, but not wanting to manually enter points for each individual star, i wanted to use a loop to set them row by row

There are probably easier ways of doing this, but my idea was to use a for-loop, using the control variable as teh additive to place each star (so when loop control increments by 5, first start is placed, then second is placed 5 points away, then by 10 til the row has 6 stars)

By my logic, i have no problems, the IDE has no errors and it complies successfully...........Except the Stars do not show up. At all.

before i implemented the for-loop, the 1 star i had showed up. with it, none do. not even the 1 star

there doesn't appear to be any error yet it isn't working, so is my Idea just fundamentally wrong or what?

The bit that matters:

    double StarX[] = {13.0, 15.0, 21.0, 16.0, 18.0, 13.0, 8.0, 11.0, 5.0, 11.0};
    double StarY[] = {50.0, 57.0, 57.0, 61.0, 68.0, 64.0, 68.0, 61.0, 57.0, 57.0};

    for (int i = 0; i < 30; i = i + 5) {
    Polygon Star = new Polygon();
    Star.getPoints().addAll(new Double[]{
    StarX[0], StarY[0],
    StarX[1], StarY[1],
    StarX[2], StarY[2],
    StarX[3], StarY[3],
    StarX[4], StarY[4],
    StarX[5], StarY[5],
    StarX[6], StarY[6],
    StarX[7], StarY[7],
    StarX[8], StarY[8],
    StarX[9], StarY[9],          
    });

    Star.setFill(Color.BLACK);
    pane.getChildren().add(Star);

}
    pane.getChildren().add(S1);
    pane.getChildren().add(S2);