//链接点类 package com.huowolf.test2; public class Link { private long data; private Link next; public Link(long data) { this.data = data; } public long getData() { return data; } public void setData(long data) { this.data = data; } public Link getNext() { return next; } public void setNext(Link next) { this.next = next; } }
//链表类 package com.huowolf.test2; public class LinkList { private Link first; //插入结点 public void insert(long value) { Link lnk = new Link(value); if(first == null) { first = lnk; } else { lnk.setNext(first); first = lnk ; } } public void display() { Link current = first; while(current != null) { System.out.print(current.getData() + " "); current = current.getNext(); } } //查找结点 public Link find(long key) { Link current = first; while(current.getData() != key) { if(current.getNext() == null) { return null; } current = current.getNext(); } return current; } //插入结点到指定位置 public void insert(long value,int pos) { if(pos == 0) { insert(value); } else { Link current = first; for(int i = 0; i < pos-1; i++) { current = current.getNext(); } Link lnk = new Link(value); lnk.setNext(current.getNext()); current.setNext(lnk); } } //删除指定结点 public void delete(long key) { Link current = first; Link ago = first; while(current.getData() != key) { if(current.getNext() == null) { return; } else { ago = current; current = current.getNext(); } } if(current == first) { first = first.getNext(); } else { ago.setNext(current.getNext()); } } }
//测试类 package com.huowolf.test2; public class TestLinkList { public static void main(String[] args) { LinkList list = new LinkList(); /* int n = 0; Scanner sc = new Scanner(System.in); while(true){ n = sc.nextInt(); if(n == -1) break; list.insert(n); } sc.close(); */ list.insert(40); list.insert(20); list.insert(15); list.insert(30); list.insert(55); list.display(); System.out.println(); System.out.println("找到结点,数据为"+list.find(40).getData()); list.insert(25, 2); list.display(); list.delete(15); System.out.println("-----------------------"); list.display(); } }
原文地址:http://blog.csdn.net/huolang_vip/article/details/43352275