From d4e4d209c7b750a6ecd50acbe2e53566c2761d67 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Wed, 22 Jan 2014 12:03:59 +0100 Subject: add doubly linked list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- .../linkedlists/DoublyLinkedList.java | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 src/datastructures/linkedlists/DoublyLinkedList.java (limited to 'src/datastructures/linkedlists/DoublyLinkedList.java') diff --git a/src/datastructures/linkedlists/DoublyLinkedList.java b/src/datastructures/linkedlists/DoublyLinkedList.java new file mode 100644 index 0000000..334eee5 --- /dev/null +++ b/src/datastructures/linkedlists/DoublyLinkedList.java @@ -0,0 +1,40 @@ +/** + * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ +package datastructures.linkedlists; + + +/** + * Doubly linked list class. A linked list is a + * list constructed from nodes, which hold stored + * values, with references to each other, this is + * usally an ineffective data structure, especially + * on high-level object orientated languages. A + * doublely linked list stores nodes with references + * to both the following node and the previous node. + * It also stores two refence nodes, the first node + * in the list, and the last node in the list. The + * implemention only implements methods that do not + * require iterating over all nodes for find a + * specific; all other methods' — those that are + * implemented — time complexity is Θ(1). + * + * @param The value stored in the structure + */ +public class DoublyLinkedList +£>export with_tail=1 with_prev=1 +£>gpp -s £ < src/datastructures/linkedlists/template | sed -e '/^[/ ]\*/d' + -- cgit v1.2.3-70-g09d2