tl1.setOnFinished((ae) ->

{

new Thread( -> {

try

{

Thread.sleep(2000);

}

catch (InterruptedException e)

{

e.getMessage;

}

Timeline tl2 = new Timeline;

KeyFrame fadeOutKey1 = new KeyFrame(Duration.millis(500), new KeyValue (toastStage.getScene.getRoot.opacityProperty, 0));

tl2.getKeyFrames.add(fadeOutKey1);

tl2.setOnFinished((aeb) -> toastStage.close);

tl2.play;

}).start;

});

tl1.play;

}

 String arithSchema1{

int a,b,c,d;

Random random=new Random;