Question

I have a simple question which I am unable to solve. I have a Vector<Vector<PointF>> object that I want to save into a ArrayList. I tried doing this:

ArrayList<Vector<Vector<PointF>>> my_arraylist = new ArrayList<Vector<Vector<PointF>>>();

and saving like this:

 public void setMyArrayList(Vector<Vector<PointF>> polyLines) {
        my_arraylist.add(polyLines);
        this.my_arraylist = my_arraylist;
 }

When I try to fetch a specific element in my_arraylist, I always get the last element in my_arraylist. Is there a specific way to save a <Vector<Vector<PointF>> into ArrayList?

Answer 1

I solved it. I had to create a Object and store in it by cloning the Vector Array:

Object temp = new Object();

temp =  polyLines.clone();

and store the temp value in my Arraylist<Object>. Convert it back to Vector<Vector<PointF>> whenever I needed to use a specific element in arraylist.