Changing the Value of a label from a list. - list

Question

I am trying to make a guessing game where the program will display a sequence of a number one at a time. I have the sequence randomly generated from a list but I have not been able to display the values in the list one at a time. I want to change the label using bind but I can't seem to make it work.
public class Tutorial extends Application {
Stage window;
Scene scene1, scene2;
Label label;
public static void main(String[] args) {
launch(args);
}
public void start(Stage primaryStage) throws Exception {
window = primaryStage;
//Scene 1
Label welcome = new Label("Welcome to the Guessing Game. Press Start to Enter");
Button start = new Button("Start");
VBox firstlayout = new VBox(10);
firstlayout.getChildren().addAll(welcome, start);
firstlayout.setAlignment(Pos.CENTER);
start.setOnAction(e -> window.setScene(scene2));
scene1 = new Scene(firstlayout, 450, 300);
window.setScene(scene1);
ArrayList<Integer> guessList = numbergen();
Label label = new Label(Integer.toString(getValues(guessList)));
label.setStyle("-fx-text-fill: red; -fx-padding: 10px; -fx-font-size: 50px");
FadeTransition fader = createFader(label);
SequentialTransition Fader = new SequentialTransition(
label,
fader
);
StackPane layout = new StackPane();
layout.getChildren().addAll(label);
scene2 = new Scene(layout, 250, 300);
Fader.play();
window.setTitle("Program Close");
window.setScene(scene1);
window.show();
}
private FadeTransition createFader(Node node) {
FadeTransition fade = new FadeTransition(Duration.seconds(5), node);
fade.setFromValue(1);
fade.setToValue(0);
return fade;
}
public ArrayList<Integer> numbergen(){
ArrayList<Integer> numb = new ArrayList<Integer>();
Random rand = new Random();
for(int i = 0; i<4; i++){
int n = rand.nextInt(5) + 1;
numb.add(n);
}
return numb;
}
public boolean result(ArrayList<Integer> solnList, ArrayList<Integer> guessList){
if(solnList.size() != guessList.size()){
return false;
}else{
for(int i = 0; i<solnList.size(); i++){
if(solnList.get(i) != guessList.get(i)){
return false;
}
}
return true;
}
}
public int getValues(ArrayList<Integer> list){
for(int i = 0; i<list.size(); i++){
return list.get(i);
}
return 0;
}
}

Answer 1

If you want a binding to an integer list element, you can use:
Bindings.integerValueAt(observableList, observableIndex)
For example:
label.textProperty().bind(
Bindings.integerValueAt(observableList, observableIndex).asString()
);
where observableIndex in an IntegerProperty which refers to the current index of an element in the list whose value you wish to be bound to.
When you call observableIndex.add(1), then the binding value will change appropriately.