ArrayList addAll (int fromIndex, Collection c) example

 ArrayList addAll (int fromIndex, Collection c) example

ArrayList<String> list1 = new ArrayList<>();    //list 1

         

        list1.add("A");

        list1.add("B");

        list1.add("C");

        list1.add("D");

         

        ArrayList<String> list2 = new ArrayList<>();    //list 2

         

        list2.add("E");

        list2.add("F");

         

        list1.addAll(2, list2); //Elements will be inserted from index 2

         

        System.out.println(list1);      //combined list




Output: [A, B, E, F, C, D]