import java.util.Iterator;

import java.util.LinkedList;

import java.util.List;

import java.util.ListIterator;

public class LinkedListDemo {

public static void main(String[] args) {

List<String> a = new LinkedList<>();

a.add("Amy");

a.add("Carl");

a.add("Erica");

List<String> b = new LinkedList<>();

b.add("Bob");

b.add("Doug");

b.add("Frances");

b.add("Gloria");

//merage the words from b into a

ListIterator<String> aIter = a.listIterator();

Iterator<String> bIter = b.iterator();

while (bIter.hasNext()) {

if (aIter.hasNext()) {

aIter.next();

}

aIter.add(bIter.next());

}

System.out.println(a);

//remove every seclond word from b

bIter = b.iterator();

while (bIter.hasNext()) {

bIter.next();

if (bIter.hasNext()) {

bIter.next();

bIter.remove();

}

}

System.out.println(b);

//bulk operation:remove all words in b from a

a.removeAll(b);

System.out.println(a);

}

}