public static void main(String args[]){
        Scanner sc = new Scanner(System.in);

        Integer n = sc.nextInt();

        ArrayList<Integer> li = new ArrayList<Integer>(); 
        while(true){
            System.out.println("Please enter coin value: ");
            li.add(sc.nextInt());
            System.out.println("Do you want to add more yes/no?");
            String answer = sc.next(); 

            if (answer.equals("no")){
                break;
            }
        }
        Integer arr[] = new Integer[li.size()];
        arr = li.toArray(arr);