package fxsandbox;import java.util.Random;
import javafx.animation.AnimationTimer;
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;public class FXSandbox extends Application {private static final int STAR_COUNT = 20000;private final Rectangle[] nodes = new Rectangle[STAR_COUNT];private final double[] angles = new double[STAR_COUNT];private final long[] start = new long[STAR_COUNT];private final Random random = new Random();@Overridepublic void start(final Stage primaryStage) {for (int i=0; i<STAR_COUNT; i++) {nodes[i] = new Rectangle(1, 1, Color.WHITE);angles[i] = 2.0 * Math.PI * random.nextDouble();start[i] = random.nextInt(2000000000);}final Scene scene = new Scene(new Group(nodes), 800, 600, Color.BLACK);primaryStage.setScene(scene);primaryStage.show();new AnimationTimer() {@Overridepublic void handle(long now) {final double width = 0.5 * primaryStage.getWidth();final double height = 0.5 * primaryStage.getHeight();final double radius = Math.sqrt(2) * Math.max(width, height);for (int i=0; i<STAR_COUNT; i++) {final Node node = nodes[i];final double angle = angles[i];final long t = (now - start[i]) % 2000000000;final double d = t * radius / 2000000000.0;node.setTranslateX(Math.cos(angle) * d + width);node.setTranslateY(Math.sin(angle) * d + height);}}}.start();}public static void main(String[] args) {launch(args);}}

参考：在Mike's Blog博客上使用 JCG合作伙伴 Michael Heinrichs 的JavaFX AnimationTimer 。