Java Polygon() Constructor

public Polygon()

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.shape.Polygon;
import javafx.stage.Stage;
/*from w w w . j a  va  2 s  .  c o m*/
public class Main extends Application {

  @Override
  public void start(Stage stage) {
    Group root = new Group();
    Scene scene = new Scene(root, 260, 80);
    stage.setScene(scene);

    Group g = new Group();

    Polygon polygon = new Polygon();
    polygon.getPoints().addAll(new Double[]{
        0.0, 0.0,
        20.0, 10.0,
        10.0, 20.0 });
    
    g.getChildren().add(polygon);
    
    scene.setRoot(g);
    stage.show();
  }

  public static void main(String[] args) {
    launch(args);
  }
}