Remove duplicate items from an ArrayList....!

List<String> arrayList1 = new ArrayList<String>();
arrayList1.add("A");
arrayList1.add("A");
arrayList1.add("B");
arrayList1.add("B");
arrayList1.add("B");
arrayList1.add("C");
HashSet<String> hashSet = new HashSet<String>(arrayList1);
List<String> arrayList2 = new ArrayList<String>(hashSet);

System.out.println("List: " + arrayList2);