Java playing with List

Alternative addition of elements from two ArrayList

      public static List<String> addAlternateList() {  
           // TODO Auto-generated method stub  
           List<String> list1 = Arrays.asList("data01", "data02", "data03", "data04", "data05", "data06", "data07",  
                     "data08");  
           List<String> list2 = Arrays.asList("John", "Peter", "Dave", "Amanda", "Kay", "Scott", "Atkingson", "Bob");  
           Iterator<String> iterator1 = list1.iterator();  
           Iterator<String> iterator2 = list2.iterator();  
           List<String> newList = new ArrayList<>();  
           while (iterator1.hasNext() || iterator2.hasNext()) {  
                if (iterator1.hasNext()) {  
                     newList.add(iterator1.next());  
                }  
                if (iterator2.hasNext()) {  
                     newList.add(iterator2.next());  
                }  
           }  
           return newList;  
      }  

OUTPUT

data01
John
data02
Peter
data03
Dave
data04
Amanda
data05
Kay
data06
Scott
data07
Atkingson
data08
Bob

Adding two list

      public static ArrayList<String> mergeList() {  
           List<String> list1 = Arrays.asList("data01", "data02", "data03", "data04", "data05", "data06", "data07",  
                     "data08");  
           List<String> list2 = Arrays.asList("John", "Peter", "Dave", "Amanda", "Kay", "Scott", "Atkingson", "Bob");  
           ArrayList<String> newList = new ArrayList<>(list1);  
           newList.addAll(list2);  
           return newList;  
      }  

OUTPUT
data01
data02
data03
data04
data05
data06
data07
data08
John
Peter
Dave
Amanda
Kay
Scott
Atkingson
Bob

Main Method Implementation

      public static void main(String[] args) {  
           List<String> alternateList = addAlternateList();  
           Iterator<String> iterator1 = alternateList.iterator();  
           while(iterator1.hasNext())  
           {  
                System.out.println(iterator1.next());  
           }  
           System.out.println("******************************");  
           ArrayList<String> mergeList = mergeList();  
           Iterator<String> iterator2 = mergeList.iterator();  
           while(iterator2.hasNext())  
           {  
                System.out.println(iterator2.next());  
           }            
      }  

List sorting

 public static void sortList()  
  {  
           List<String> list2 = Arrays.asList("John", "Peter", "Dave", "Amanda", "Kay", "Scott", "Atkingson", "Bob");  
           System.out.println("Before Sorting " + list2);  
           Collections.sort(list2);  
           System.out.println("After Sorting " + list2);  
           //sorting   
           Collections.sort(list2,String.CASE_INSENSITIVE_ORDER);  
      }