From 0545e5d1f2b7b3158229b74dfaa7dba740ea9308 Mon Sep 17 00:00:00 2001 From: fu08 <1007702646@qq.com> Date: Tue, 3 Nov 2020 23:35:49 +0800 Subject: [PATCH] =?UTF-8?q?=E5=AE=8C=E6=88=90=E4=BD=9C=E4=B8=9A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../DoubleLinkedList.java" | 176 ++++++++++++++++++ .../LinkedList.class" | Bin 0 -> 1586 bytes .../LinkedList.java" | 132 +++++++++++++ .../Node.class" | Bin 0 -> 261 bytes .../Programs.class" | Bin 0 -> 664 bytes .../Programs.java" | 16 ++ 6 files changed, 324 insertions(+) create mode 100644 "08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/DoubleLinkedList.java" create mode 100644 "08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/LinkedList.class" create mode 100644 "08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/LinkedList.java" create mode 100644 "08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/Node.class" create mode 100644 "08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/Programs.class" create mode 100644 "08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/Programs.java" diff --git "a/08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/DoubleLinkedList.java" "b/08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/DoubleLinkedList.java" new file mode 100644 index 0000000..db1e6b2 --- /dev/null +++ "b/08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/DoubleLinkedList.java" @@ -0,0 +1,176 @@ +public class DoubleLinkedList { + //声明为public，方便存取 + //头指针 + public Node first; + //尾指针 + public Node last; + //链表中实际存储的数据的数目 + public int size; + + //初始化 + public DoubleLinkedList() { + this.first = null; + this.last = null; + this.size = 0; + } + + //得到链表容量 + public int size() { + return size; + } + + //判断链表是否为空 + public boolean isEmpty() { + return size == 0; + } + + //添加头节点 + public void addFirst(int data) { + //创建新节点 + Node newNode = new Node(data); + //判断链表是否为空 + if(isEmpty()) { + last = newNode; + }else { + first.previous = newNode; + newNode.next = first; + } + first = newNode; + size ++; + } + + //添加尾节点 + public void addLast(int data) { + //创建新节点 + Node newNode = new Node(data); + //判断链表是否为空 + if(isEmpty()) { + first = newNode; + }else { + last.next = newNode; + newNode.previous = last; + } + last = newNode; + size ++; + } + + //删除头结点,并返回头结点 + public Node deleteFirst() { + if(isEmpty()) { + System.out.println("链表为空!"); + return null; + } + Node temp = first; + if(size == 1) { + //如果链表中只有一个元素 + last = null; + }else { + first.next.previous = null; + } + first = first.next; + size --; + return temp; + } + + //删除尾节点，并返回尾节点 + public Node deleteLast() { + if(isEmpty()) { + System.out.println("链表为空！"); + return null; + } + Node temp = last; + if(size == 1) { + //如果只有一个元素 + first = null; + }else { + last.previous.next = null; + } + last = last.previous; + size --; + return temp; + } + + //将节点插入到指定值为key的节点后面 + public void insert(int key,int value) { + //创建要插入的新节点 + Node newNode = new Node(value); + //创建要插入节点位置上原来的节点 + Node current = first; + if(isEmpty()) { + System.out.println("没有值为" + key + "的值！"); + return; + } + while(current.data != key) { + if(current == null) { + System.out.println("没有值为" + key + "的值！"); + return; + } + //往下遍历 + current = current.next; + } + current.next.previous = newNode; + newNode.next = current.next; + current.next = newNode; + newNode.previous = current; + size ++; + } + + //删除特定的节点,并返回该节点 + public Node deleteNode(int value) { + if(isEmpty()) { + System.out.println("没有值为" + value + "的值！"); + } + //创建要删除节点 + Node current = first; + while(current.data != value) { + if(current == null) { + System.out.println("没有值为" + value + "的值！"); + } + //继续向下遍历 + current = current.next; + } + //如果要删除的节点为首节点 + if(current == first) { + deleteFirst(); + }else if(current == last) { + //如果要删除的节点为尾节点 + deleteLast(); + }else { + current.previous.next = current.next; + current.next.previous = current.previous; + } + size --; + return current; + } + + + //正向遍历链表 + public void traverseForward() { + Node current = first; + while(current != null) { + System.out.println(current.data); + current = current.next; + } + } + //反向遍历链表 + public void traverseBackwrad() { + Node current = last; + while(current != null) { + System.out.println(current.data); + current = current.previous; + } + } +} +class Node{ + //声明为public，方便存取 + //指向前一个节点 + public Node previous; + //指向后一个节点 + public Node next; + //数据域 + public int data; + + public Node(int data) { + this.data = data; + } +} diff --git "a/08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/LinkedList.class" "b/08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/LinkedList.class" new file mode 100644 index 0000000000000000000000000000000000000000..d018942cfbf5d641a023df78ac6820284d8d8165 GIT binary patch literal 1586 zcmZuxU2hvj6g^|Fz5dvc*lh}q-ISCP9A}-RUunr#0|i8o?N+2zvo}$3v_j~L zQ*XEm;Xn$Cy)f+zEwXw(p{Xc9we-+6zwAE-fw0*!2t6Oofq% zRW85f18LbQ*%~j~72CCUf=s`x&^GN_v-3r3aVIOtENW)@6{lJjeuXI0ccsL941d9J z>(({9-mnXf=+zp|r`%3p%G904n+uEXb%oe;ZK*y>T2UoB=k2m23|zIYSqAo_(?ACj z29nrE5P_Cx%D}4#`M3wyubC`%?J0^AKhC2=eN&vj2oE183U7&oZR~9 zhpo?VJi77AgL_{*{PC-Y-`tet6h%DcRp=1r!HQL#8$362)t(jYRr?c8&#X*eZ_sp> zQ(NLfXTi&HYJ=zNPSu@u>$bJP*6jPAFpFQ5O_eJ1vVNjR#w@2gH|n*mY`GSCcp%z& zZUTI0f%iriI7gwx8IA||b)4&pb9?SCR8FlTkPEINxXh5k^Bj{rM?jdP&eRBD1>gmw zb^xXjLAV88Cb)K+djp=}E{X-ZC^t<9GGyrHcnH1Z$Z&3YuU; z&k%W%qF$%OH#`9`1Roo)+^mdF4=CP(|^nl;1#a-skS-yq7y)lu)U;{fD`U z#52unB5ul3%Qfj^{;9%Yw2|W->Mc-fk!QEWuAZa9^EiTcY3MW!e2;%`7pePwyp79@ ze&8u@N9bSZzHgZ*JycBFJ@R5)fY5y+zR current.data) { + previous = current; + current = current.next; + } + if (previous == null) { + first = newNode; + } else { + previous.next = newNode; + } + newNode.next = current; + nItems++; + } + + // 查询某个特定值的节点 + public Node findNode(int data) { + // 定义一个新节点用于查询 + Node current = first; + while (current != null && current.data != data) { + if (current.next == null) { + System.out.println("该节点不存在"); + return null; + } + current = current.next; + } + return current; + } + + // 删除某个特定值的节点,并返回该节点 + public Node deleteNode(int data) { + // 定义被删除节点之前的节点 + Node previous = null; + // 定义被删除的节点 + Node current = first; + while (current != null && current.data != data) { + if (current.next == null) { + System.out.println("该节点不存在"); + return null; + } + previous = current; + current = current.next; + } + if (previous == null) { + first = first.next; + } else { + previous.next = current.next; + } + nItems--; + return current; + } + + // 遍历链表 + public void traverseList() { + // 定义一个节点用于遍历 + Node current = first; + // 判断链表是否为空 + if (current == null) { + System.out.println("链表为空！"); + return; + } + while (current != null) { + System.out.println(current.data); + current = current.next; + } + } + + // 链表的长度 + public int size() { + return nItems; + } + + // 判断链表是否为空 + public boolean isEmpty() { + return first == null; + } + +} + +// 定义节点 +class Node { + // 声明为public，方便存取 + // 指向下一个节点 + public Node next; + // 数据域 + public int data; + + public Node(int data) { + this.data = data; + } +} diff --git "a/08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/Node.class" "b/08\345\202\205\345\233\275\351\224\213\344\275\234\344\270\232/Node.class" new file mode 100644 index 0000000000000000000000000000000000000000..5250f6a935e4b02251a9389e4e7c0291b20bc0ba GIT binary patch literal 261 zcmW+wyKcfj5S%pz$BudA(WRjT7onj`M1zEcWI;hhf3{EPfEWo3q9yqv3WP+F58$Iv z=4ftiW@l#idb|7q=;Aeii@J{z8XlfJJPX`h?+ZaC9<4I{L7u5X31mp^)8wY;QELs` zQ$n8>K|MCP9&Nu9z5Y_kl1eaHZP%$D7)$JUp|jX*iubwNsSrM1LU?#!gIywMSiQ4U z`K&We<~rs6QmZ{hlZUxH)PbOk3V&jAcNEqHGW5lBXd}ha-Ae3Fxq7ut;9@BMLLR- zQ&IOVO`ga0>eT|`#q4fV-}g34=HY+(4nCEYNvSxWQj6vJzBcdg)3OzLwG_E>|WC*#k7;L9Ow(`l8gAluwLf%r;}z*$1C z4hjS~hb8iv`h`jzvM+zYd2@nB+;eAedrbz9K{EIZ?fN`JbI56L$ay*Z2ER8$FhfYD vbvo>Et*ikbE_qEF>0t$u{ve-p2iQPJuhgP