TP04E04 SimpleLinkedListIterator

import java.util.Iterator;

public class SimpleLinkedListIterator<ELEMENT> implements Iterator<ELEMENT>
{
    Node<ELEMENT> current;


    public SimpleLinkedListIterator(Node<ELEMENT> begin)
    {
        this.current = begin;
    }

    @Override
    public boolean hasNext() {
        return this.current != null;
    }

    @Override
    public ELEMENT next() {
        if(!this.hasNext()) return null;
        ELEMENT item = this.current.item;
        this.current = this.current.next;
        return item;
    }

    public Node<ELEMENT> nextNode()
    {
        if(!this.hasNext()) return null;
        return this.current = this.current.next;
    }
}