DoubleLinkedListOrdenada

public class DoubleLinkedListOrdenada <ELEMENT extends Comparable<ELEMENT>>
              extends DoubleLinkedList<ELEMENT>implements LinkedListOrdenada<ELEMENT>{

    public DoubleLinkedListOrdenada () {super();        }


    public void addenOrden(ELEMENT item){
        if(this.size()==0) {
            this.head=this.tail = new Node<ELEMENT>(item, null, null);
            ++this.count;
        }else {
            if(item.compareTo(this.head.item) <= 0){
                this.addFirst(item);
            }else {
                if(item.compareTo(this.tail.item)> 0) {
                    this.addLast(item);
                }else {
                    Node<ELEMENT> skip= this.head;
                    while((skip!=null)&&(item.compareTo(skip.item)>0)) {
                        skip=skip.next;
                    }
                    if(skip==null){
                        throw new RuntimeException("Algo Esta Raro en el orden de los elementos de la lista...");
                    }
                    else {
                        Node<ELEMENT> temp= new Node<>(item,skip,skip.prev);
                        skip.prev.next=temp;
                        skip.prev=temp;
                        ++ this.count;
                    }
                }
            }
        }
    }

}