Which collection class(es) allows you to grow or shrink its size and provides indexed access to its elements, but whose methods are not synchronized? (Choose all that apply.)

ArrayList is a resizable array implementation that provides indexed access via get(int index) and set(int index, E element) methods. Unlike Vector, ArrayList's methods are not synchronized, making it faster for single-threaded use. HashSet and LinkedHashSet don't provide indexed access. List is an interface, not a concrete class. Vector has synchronized methods. PriorityQueue doesn't support indexed access.