Hi Friend,

Try the following code:

import java.util.*;

class MergeLinkedLists{
public static void main(String[] args) {
LinkedList<Integer> list1=new LinkedList<Integer>();
list1.add(1);
list1.add(2);

LinkedList<Integer> list2=new LinkedList<Integer>();
list2.add(3);
list2.add(4);

LinkedList<Integer> link=new LinkedList<Integer>(list1);
link.addAll(list2);
ListIterator li = link.listIterator();
while (li.hasNext()) {
System.out.println(li.next());
}

}
}

Hope that it will be helpful for you.
Thanks