// Helene Martin, CSE 143
// Demonstrates polymorphism through interfaces: the addAndPrint method will 
// work for any object type that implements the List<E> interface!

public class ListClient {
   public static void main(String[] args) {
      List<Integer> list1 = new ArrayList<Integer>();
      addAndPrint(list1);

      List<Integer> list2 = new LinkedList<Integer>();
      addAndPrint(list2);
   }

   // Calls several methods on an ArayIntList.
   // pre: list is not null
   public static void addAndPrint(List<Integer> list) {
      list.add(34);
      list.add(17);
      list.add(23);
      list.add(1, 6);
      list.set(1, -17);

      System.out.println(list);
      list.remove(0);

      for (int i = 0; i < list.size(); i++) {
         System.out.println(list.get(i));
      }
   }
}