Add method for sorting.

src/main/java/lab/GameController.java

@@ -95,7 +95,7 @@ public class GameController {
 	private void gameOverPressed() {
 		Score score = new Score(new Random().nextInt(11), nameTextField.getText());
 		scoreList.getItems().add(score);
-		Collections.sort(scoreList.getItems(),  new ScoreComparator().reversed());
+		sortScores();
 	}
 	
 	@FXML
@@ -135,6 +135,10 @@ public class GameController {
 		scoreList.setItems(FXCollections.observableList(highScores));
 	}
 	
+	private void sortScores() {
+		Collections.sort(scoreList.getItems(),  new ScoreComparator().reversed());
+	}
+
 	private class GameListenerImpl implements GameListener {
 
 		@Override