import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.paint.Color;
import javafx.scene.shape.FillRule;
import javafx.stage.Stage;

public class CanvasStrokeEvenOdd extends Application {
    public static void main(String argv[]) {
        launch(argv);
    }

    @Override
    public void start(Stage stage) {
        Canvas c = new Canvas(400, 200);
        GraphicsContext gc = c.getGraphicsContext2D();
        gc.setLineWidth(30.0);
        gc.setStroke(Color.BLUE);

        // Note that fill rule should not affect stroked output...
        gc.setFillRule(FillRule.NON_ZERO);
        gc.beginPath();
        gc.rect(50, 50, 100, 100);
        gc.stroke();

        gc.setFillRule(FillRule.EVEN_ODD);
        gc.beginPath();
        gc.rect(250, 50, 100, 100);
        gc.stroke();

        Scene scene = new Scene(new Group(c));
        scene.setFill(Color.WHITE);
        stage.setScene(scene);
        stage.show();
    }
}