//
// Created by Julio Tentor <[email protected]>
//
public class DoubleLinkedOrderedList<ELEMENT extends Comparable<ELEMENT>>
extends DoubleLinkedList<ELEMENT> implements ILinkedOrderedList<ELEMENT> {
//region Constructors
public DoubleLinkedOrderedList() {
super();
}
//endregion
//region Ordered List Methods
public void addInOrder(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 está mal en el orden de los elementos de la lista...");
}
else {
Node<ELEMENT> temp = new Node<ELEMENT>(item, skip, skip.prev);
skip.prev.next = temp;
skip.prev = temp;
++this.count;
}
}
}
}
}
public boolean findAndRemove(ELEMENT item) {
if (this.size() == 0) {
return false;
}
Node<ELEMENT> skip = this.head;
while ((skip != null) && !(item.compareTo(skip.item) == 0)) {
skip = skip.next;
}
if (skip == null) {
return false;
}
else {
if (skip.prev == null) {
this.removeFirst();
return true;
}
else {
if (skip.next == null) {
this.removeLast();
return true;
}
else {
skip.prev.next = skip.next;
skip.next.prev = skip.prev;
skip.prev = skip.next = null;
return true;
}
}
}
}
//endregion
}
Comments