Java tutorial
import javafx.application.Application; import javafx.concurrent.Task; import javafx.scene.Group; import javafx.scene.Scene; import javafx.stage.Stage; public class Main extends Application { @Override public void start(Stage stage) { Group root = new Group(); Scene scene = new Scene(root, 300, 150); stage.setScene(scene); stage.setTitle("Sample"); final int totalIterations = 90; Task<Integer> task = new Task<Integer>() { @Override protected Integer call() throws Exception { int iterations; for (iterations = 0; iterations < totalIterations; iterations++) { if (isCancelled()) { updateMessage("Cancelled"); break; } updateMessage("Iteration " + iterations); updateProgress(iterations, totalIterations); } return iterations; } }; task.run(); System.out.println(task.getMessage()); // root.getChildren().add(t); stage.show(); } public static void main(String[] args) { launch(args); } }