LinkedList iterator

In this chapter you will learn:

Get iterator from LinkedList
Get List Iterator from a LinkedList

Get iterator from LinkedList

Iterator<E> iterator() Returns an iterator over the elements. ListIterator<E> listIterator(int index) Returns a list-iterator starting at the specified position in the list.

import java.util.Iterator;
import java.util.LinkedList;
/*  j av a2s.co m*/
public class Main{
    public static void main(String args[]) {
        LinkedList<String> ll = new LinkedList<String>();

        ll.add("A");
        ll.add("ja v a2s.com");
        ll.addLast("B");
        ll.add("C");

        Iterator<String> itr = ll.iterator();
        while (itr.hasNext()) {
            String element = itr.next();
            System.out.print(element + " ");
        }
    }
}

The output:

Get List Iterator from a LinkedList

The following code calls listIterator from LinkedList and passes in an offset. It returns a ListIterator which contains the elements starting from the offset.

import java.util.LinkedList;
import java.util.ListIterator;
/*from   ja v  a2 s .com*/
public class Main{
    public static void main(String args[]) {
        LinkedList<String> ll = new LinkedList<String>();

        ll.add("A");
        ll.add("ja v a2s.com");
        ll.addLast("B");
        ll.add("C");

        ListIterator<String> itr = ll.listIterator(1);
        while (itr.hasNext()) {
            String element = itr.next();
            System.out.print(element + " ");
        }
    }
}