{"id":43969,"date":"2025-06-16T14:28:12","date_gmt":"2025-06-16T06:28:12","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/43969.html"},"modified":"2025-06-16T14:28:12","modified_gmt":"2025-06-16T06:28:12","slug":"java-arraylist-%e5%92%8c-linkedlist-%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/43969.html","title":{"rendered":"Java\u2014\u2014 ArrayList \u548c LinkedList \u8be6\u89e3"},"content":{"rendered":"<h2>\u4e00\u3001\u6570\u636e\u7ed3\u6784\u4e0e\u6838\u5fc3\u7279\u6027<\/h2>\n<h3>1. ArrayList<\/h3>\n<ul>\n<li>\u6570\u636e\u7ed3\u6784&#xff1a;\u57fa\u4e8e\u52a8\u6001\u6570\u7ec4\u5b9e\u73b0&#xff0c;\u5143\u7d20\u5b58\u50a8\u5728\u8fde\u7eed\u5185\u5b58\u4e2d\u3002<\/li>\n<li>\u6838\u5fc3\u7279\u6027&#xff1a; \u2013 \u901a\u8fc7\u7d22\u5f15\u968f\u673a\u8bbf\u95ee\u5143\u7d20&#xff0c;\u65f6\u95f4\u590d\u6742\u5ea6 O (1)\u3002 \u2013 \u6269\u5bb9\u673a\u5236&#xff1a;\u5bb9\u91cf\u4e0d\u8db3\u65f6\u65b0\u5efa\u6570\u7ec4&#xff08;\u539f\u5bb9\u91cf\u7684 1.5 \u500d&#xff09;\u5e76\u590d\u5236\u5143\u7d20\u3002 \u2013 \u5c3e\u90e8\u6dfb\u52a0 \/ \u5220\u9664\u6548\u7387\u9ad8&#xff08;O (1)&#xff09;&#xff0c;\u4e2d\u95f4\u64cd\u4f5c\u9700\u79fb\u52a8\u5143\u7d20&#xff08;O (n)&#xff09;\u3002 \u2013 \u4e0d\u76f4\u63a5\u652f\u6301 poll\/offer&#xff0c;\u9700\u501f\u52a9 ArrayDeque \u6216 LinkedList \u5305\u88c5\u3002<\/li>\n<\/ul>\n<h3>2. LinkedList<\/h3>\n<ul>\n<li>\u6570\u636e\u7ed3\u6784&#xff1a;\u53cc\u5411\u94fe\u8868&#xff0c;\u6bcf\u4e2a\u8282\u70b9\u5305\u542b\u524d\u9a71\u3001\u540e\u7ee7\u6307\u9488\u548c\u5143\u7d20\u503c\u3002<\/li>\n<li>\u6838\u5fc3\u7279\u6027&#xff1a; \u2013 \u4efb\u610f\u4f4d\u7f6e\u63d2\u5165 \/ \u5220\u9664\u4ec5\u9700\u4fee\u6539\u6307\u9488&#xff08;O (1)&#xff09;&#xff0c;\u4f46\u968f\u673a\u8bbf\u95ee\u9700\u904d\u5386&#xff08;O (n)&#xff09;\u3002 \u2013 \u5b9e\u73b0 Deque \u63a5\u53e3&#xff0c;\u539f\u751f\u652f\u6301 poll\/offer \u7b49\u961f\u5217\u64cd\u4f5c\u3002 \u2013 \u65e0\u5bb9\u91cf\u9650\u5236&#xff0c;\u8282\u70b9\u52a8\u6001\u5206\u914d\u5185\u5b58&#xff0c;\u5185\u5b58\u5360\u7528\u9ad8\u4e8e ArrayList\u3002<\/li>\n<\/ul>\n<h3>\u4e8c\u3001\u6838\u5fc3\u65b9\u6cd5\u5bf9\u6bd4<\/h3>\n<table>\n<tr>\u64cd\u4f5c\u7c7b\u578bArrayListLinkedList<\/tr>\n<tbody>\n<tr>\n<td>\u6784\u9020<\/td>\n<td>new ArrayList&lt;&gt;()&#xff08;\u521d\u59cb\u5bb9\u91cf 10&#xff09;<\/td>\n<td>new LinkedList&lt;&gt;()<\/td>\n<\/tr>\n<tr>\n<td>\u6dfb\u52a0\u5143\u7d20<\/td>\n<td>add(E e)&#xff08;\u5c3e\u90e8&#xff0c;O(1)&#xff09;add(index, e)&#xff08;\u4e2d\u95f4&#xff0c;O(n)&#xff09;<\/td>\n<td>add(e)&#xff08;\u5c3e\u90e8&#xff0c;O(1)&#xff09;addFirst(e) \/ addLast(e)&#xff08;O(1)&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u5220\u9664\u5143\u7d20<\/td>\n<td>remove(index)&#xff08;O(n)&#xff09;<\/td>\n<td>removeFirst() \/ removeLast()&#xff08;O(1)&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u968f\u673a\u8bbf\u95ee<\/td>\n<td>get(index)&#xff08;O(1)&#xff09;<\/td>\n<td>get(index)&#xff08;O(n)&#xff0c;\u9700\u904d\u5386\u94fe\u8868&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u961f\u5217\u64cd\u4f5c&#xff08;poll&#xff09;<\/td>\n<td>\u9700\u5305\u88c5\u4e3a ArrayDeque&#xff0c;\u672c\u8d28\u6570\u7ec4\u64cd\u4f5c<\/td>\n<td>poll()&#xff08;\u53d6\u5934\u90e8&#xff0c;O(1)&#xff09;pollFirst() \/ pollLast()&#xff08;O(1)&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u961f\u5217\u64cd\u4f5c&#xff08;offer&#xff09;<\/td>\n<td>\u9700\u5305\u88c5\u4e3a ArrayDeque&#xff0c;\u5c3e\u90e8\u6dfb\u52a0 O(1)<\/td>\n<td>offer(e)&#xff08;\u5c3e\u90e8&#xff0c;O(1)&#xff09;offerFirst(e) \/ offerLast(e)&#xff08;O(1)&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u4e09\u3001poll \u548c offer \u65b9\u6cd5\u8be6\u89e3<\/h3>\n<h4>1. \u65b9\u6cd5\u5b9a\u4e49\u4e0e\u529f\u80fd<\/h4>\n<ul>\n<li>poll()&#xff1a;\u83b7\u53d6\u5e76\u79fb\u9664\u96c6\u5408\u5934\u90e8\u5143\u7d20&#xff0c;\u7a7a\u96c6\u5408\u8fd4\u56de null&#xff08;\u533a\u522b\u4e8e remove() \u7684\u5f02\u5e38&#xff09;\u3002<\/li>\n<li>offer(E e)&#xff1a;\u6dfb\u52a0\u5143\u7d20\u5230\u96c6\u5408&#xff0c;\u6210\u529f\u8fd4\u56de true&#xff08;LinkedList \u65e0\u5bb9\u91cf\u9650\u5236&#xff0c;\u59cb\u7ec8\u6210\u529f&#xff09;\u3002<\/li>\n<\/ul>\n<h4>2. LinkedList \u4e2d\u7684\u961f\u5217\u64cd\u4f5c<\/h4>\n<p><span class=\"token class-name\">LinkedList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> deque <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">LinkedList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u6dfb\u52a0\u5143\u7d20<\/span><br \/>\ndeque<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;A&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>       <span class=\"token comment\">\/\/ \u5c3e\u90e8\u6dfb\u52a0&#xff0c;\u7b49\u4ef7\u4e8e addLast()<\/span><br \/>\ndeque<span class=\"token punctuation\">.<\/span><span class=\"token function\">offerFirst<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;B&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5934\u90e8\u6dfb\u52a0<\/span><br \/>\ndeque<span class=\"token punctuation\">.<\/span><span class=\"token function\">offerLast<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;C&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u5c3e\u90e8\u6dfb\u52a0&#xff0c;\u7b49\u4ef7\u4e8e offer()<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u5e76\u79fb\u9664\u5143\u7d20<\/span><br \/>\n<span class=\"token class-name\">String<\/span> head <span class=\"token operator\">&#061;<\/span> deque<span class=\"token punctuation\">.<\/span><span class=\"token function\">poll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>      <span class=\"token comment\">\/\/ \u53d6\u5934\u90e8&#xff08;&#034;B&#034;&#xff09;&#xff0c;\u961f\u5217\u53d8\u4e3a [&#034;A&#034;, &#034;C&#034;]<\/span><br \/>\n<span class=\"token class-name\">String<\/span> tail <span class=\"token operator\">&#061;<\/span> deque<span class=\"token punctuation\">.<\/span><span class=\"token function\">pollLast<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u53d6\u5c3e\u90e8&#xff08;&#034;C&#034;&#xff09;&#xff0c;\u961f\u5217\u53d8\u4e3a [&#034;A&#034;]<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7a7a\u96c6\u5408\u5904\u7406<\/span><br \/>\n<span class=\"token class-name\">String<\/span> empty <span class=\"token operator\">&#061;<\/span> deque<span class=\"token punctuation\">.<\/span><span class=\"token function\">poll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8fd4\u56de null&#xff0c;\u4e0d\u629b\u5f02\u5e38<\/span><\/p>\n<h4>3. ArrayList \u5b9e\u73b0\u961f\u5217\u64cd\u4f5c&#xff08;\u9700\u9002\u914d\u5668&#xff09;<\/h4>\n<p><span class=\"token comment\">\/\/ \u63a8\u8350\u65b9\u5f0f&#xff1a;\u4f7f\u7528 ArrayDeque \u5305\u88c5 ArrayList<\/span><br \/>\n<span class=\"token class-name\">Deque<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> queue <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayDeque<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Arrays<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asList<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nqueue<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u5c3e\u90e8\u6dfb\u52a0&#xff0c;\u961f\u5217\u53d8\u4e3a [1,2,3,4]<\/span><br \/>\n<span class=\"token keyword\">int<\/span> first <span class=\"token operator\">&#061;<\/span> queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">poll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u53d6\u5934\u90e8&#xff08;1&#xff09;&#xff0c;\u961f\u5217\u53d8\u4e3a [2,3,4]<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e0d\u63a8\u8350\u65b9\u5f0f&#xff1a;\u7528 LinkedList \u5305\u88c5 ArrayList&#xff08;\u6027\u80fd\u5dee&#xff09;<\/span><br \/>\n<span class=\"token class-name\">Queue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> arrayListQueue <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">LinkedList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\narrayListQueue<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5185\u90e8\u901a\u8fc7\u94fe\u8868\u6dfb\u52a0&#xff0c;\u975e\u6570\u7ec4\u76f4\u63a5\u64cd\u4f5c<\/span><\/p>\n<h3>\u56db\u3001\u6027\u80fd\u4e0e\u9002\u7528\u573a\u666f<\/h3>\n<h4>1. \u6027\u80fd\u5bf9\u6bd4<\/h4>\n<table>\n<tr>\u64cd\u4f5cArrayListLinkedList<\/tr>\n<tbody>\n<tr>\n<td>\u5c3e\u90e8\u6dfb\u52a0<\/td>\n<td>O(1)<\/td>\n<td>O(1)<\/td>\n<\/tr>\n<tr>\n<td>\u4e2d\u95f4\u63d2\u5165<\/td>\n<td>O(n) (\u79fb\u52a8\u5143\u7d20)<\/td>\n<td>O(1) (\u4fee\u6539\u6307\u9488)<\/td>\n<\/tr>\n<tr>\n<td>\u968f\u673a\u8bbf\u95ee<\/td>\n<td>O(1)<\/td>\n<td>O(n) (\u904d\u5386\u94fe\u8868)<\/td>\n<\/tr>\n<tr>\n<td>poll\/offer \u5934\u90e8<\/td>\n<td>\u9700\u9002\u914d\u5668&#xff0c;O(1)<\/td>\n<td>O(1)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>2. \u9002\u7528\u573a\u666f<\/h4>\n<ul>\n<li>\u9009 ArrayList \u7684\u573a\u666f&#xff1a;\n<ul>\n<li>\u9891\u7e41\u968f\u673a\u8bbf\u95ee&#xff08;\u5982 get(index)&#xff09;\u3002<\/li>\n<li>\u5c3e\u90e8\u6dfb\u52a0 \/ \u5220\u9664\u4e3a\u4e3b&#xff08;\u5982\u65e5\u5fd7\u8bb0\u5f55&#xff09;\u3002<\/li>\n<li>\u6570\u636e\u91cf\u53ef\u9884\u6d4b&#xff0c;\u907f\u514d\u9891\u7e41\u6269\u5bb9\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u9009 LinkedList \u7684\u573a\u666f&#xff1a;\n<ul>\n<li>\u9891\u7e41\u5728\u5934\u90e8 \/ \u4e2d\u95f4\u63d2\u5165 \/ \u5220\u9664&#xff08;\u5982\u4efb\u52a1\u961f\u5217&#xff09;\u3002<\/li>\n<li>\u9700\u8981\u4f7f\u7528 poll\/offer \u7b49\u53cc\u7aef\u961f\u5217\u64cd\u4f5c\u3002<\/li>\n<li>\u6570\u636e\u91cf\u4e0d\u786e\u5b9a&#xff0c;\u4e0d\u5e0c\u671b\u6709\u6269\u5bb9\u5f00\u9500\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u4e94\u3001\u4ee3\u7801\u793a\u4f8b&#xff1a;\u7efc\u5408\u5e94\u7528<\/h3>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">ArrayList<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Deque<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">LinkedList<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Queue<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ListComparison<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ &#061;&#061;&#061; ArrayList \u4f5c\u4e3a\u666e\u901a\u5217\u8868 &#061;&#061;&#061;<\/span><br \/>\n        <span class=\"token class-name\">ArrayList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> arrayList <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        arrayList<span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u82f9\u679c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        arrayList<span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u9999\u8549&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;ArrayList \u968f\u673a\u8bbf\u95ee&#xff1a;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> arrayList<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8f93\u51fa&#xff1a;\u9999\u8549<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ &#061;&#061;&#061; LinkedList \u4f5c\u4e3a\u961f\u5217 &#061;&#061;&#061;<\/span><br \/>\n        <span class=\"token class-name\">Queue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> taskQueue <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">LinkedList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        taskQueue<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6570\u636e\u91c7\u96c6&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        taskQueue<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6a21\u578b\u8bad\u7ec3&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u961f\u5217\u5904\u7406\u987a\u5e8f&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>taskQueue<span class=\"token punctuation\">.<\/span><span class=\"token function\">isEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;- &#034;<\/span> <span class=\"token operator\">&#043;<\/span> taskQueue<span class=\"token punctuation\">.<\/span><span class=\"token function\">poll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6309\u6dfb\u52a0\u987a\u5e8f\u8f93\u51fa<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ &#061;&#061;&#061; LinkedList \u4f5c\u4e3a\u6808 &#061;&#061;&#061;<\/span><br \/>\n        <span class=\"token class-name\">Deque<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> stack <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">LinkedList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        stack<span class=\"token punctuation\">.<\/span><span class=\"token function\">offerFirst<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;HTML&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        stack<span class=\"token punctuation\">.<\/span><span class=\"token function\">offerFirst<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;CSS&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        stack<span class=\"token punctuation\">.<\/span><span class=\"token function\">offerFirst<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;JavaScript&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\\\\n\u6808\u5f39\u51fa\u987a\u5e8f&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>stack<span class=\"token punctuation\">.<\/span><span class=\"token function\">isEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;- &#034;<\/span> <span class=\"token operator\">&#043;<\/span> stack<span class=\"token punctuation\">.<\/span><span class=\"token function\">pollFirst<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u540e\u5165\u5148\u51fa<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ &#061;&#061;&#061; ArrayList \u5b9e\u73b0\u961f\u5217&#xff08;\u501f\u52a9 ArrayDeque&#xff09;&#061;&#061;&#061;<\/span><br \/>\n        <span class=\"token class-name\">Deque<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> arrayQueue <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayDeque<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Arrays<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asList<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        arrayQueue<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5c3e\u90e8\u6dfb\u52a0<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\\\\nArrayDeque \u5305\u88c5 ArrayList \u961f\u5217&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>arrayQueue<span class=\"token punctuation\">.<\/span><span class=\"token function\">isEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;- &#034;<\/span> <span class=\"token operator\">&#043;<\/span> arrayQueue<span class=\"token punctuation\">.<\/span><span class=\"token function\">poll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 10, 20, 30<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u516d\u3001\u603b\u7ed3\u4e0e\u6ce8\u610f\u4e8b\u9879<\/h3>\n<h4>1. \u6570\u636e\u7ed3\u6784\u51b3\u5b9a\u6027\u80fd&#xff1a;<\/h4>\n<ul>\n<li>ArrayList \u9002\u5408 \u201c\u8bfb\u591a\u5199\u5c11\u201d \u573a\u666f&#xff0c;\u5c24\u5176\u968f\u673a\u8bbf\u95ee\u9891\u7e41\u65f6\u3002<\/li>\n<li>LinkedList \u9002\u5408 \u201c\u5199\u591a\u8bfb\u5c11\u201d \u573a\u666f&#xff0c;\u5c24\u5176\u9700\u8981\u961f\u5217 \/ \u6808\u64cd\u4f5c\u65f6\u3002<\/li>\n<\/ul>\n<h4>2. \u961f\u5217\u64cd\u4f5c\u7684\u6700\u4f73\u5b9e\u8df5&#xff1a;<\/h4>\n<ul>\n<li>\u4f18\u5148\u4f7f\u7528 LinkedList \u6216 ArrayDeque \u5b9e\u73b0\u961f\u5217 \/ \u6808&#xff0c;\u800c\u975e\u5305\u88c5 ArrayList\u3002<\/li>\n<li>ArrayDeque \u7684\u6027\u80fd\u901a\u5e38\u4f18\u4e8e LinkedList&#xff0c;\u56e0\u6570\u7ec4\u8fde\u7eed\u5b58\u50a8\u51cf\u5c11\u5185\u5b58\u8df3\u8f6c\u3002<\/li>\n<\/ul>\n<h4>3. \u7ebf\u7a0b\u5b89\u5168&#xff1a;<\/h4>\n<ul>\n<li>\u4e24\u8005\u5747\u975e\u7ebf\u7a0b\u5b89\u5168&#xff0c;\u591a\u7ebf\u7a0b\u73af\u5883\u9700\u7528 Collections.synchronizedList() \u5305\u88c5\u6216\u4f7f\u7528 CopyOnWriteArrayList\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u7406\u89e3\u4e24\u8005\u7684\u5e95\u5c42\u5b9e\u73b0\u4e0e\u65b9\u6cd5\u7279\u6027&#xff0c;\u53ef\u6839\u636e\u4e1a\u52a1\u573a\u666f&#xff08;\u5982\u6570\u636e\u8bbf\u95ee\u6a21\u5f0f\u3001\u64cd\u4f5c\u9891\u7387&#xff09;\u9009\u62e9\u66f4\u5408\u9002\u7684\u96c6\u5408\u7c7b&#xff0c;\u4f18\u5316\u7a0b\u5e8f\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb400\u6b21\uff0c\u70b9\u8d5e3\u6b21\uff0c\u6536\u85cf4\u6b21\u3002poll()\uff1a\u83b7\u53d6\u5e76\u79fb\u9664\u96c6\u5408\u5934\u90e8\u5143\u7d20\uff0c\u7a7a\u96c6\u5408\u8fd4\u56de null\uff08\u533a\u522b\u4e8e remove() \u7684\u5f02\u5e38\uff09\u3002offer(E e)\uff1a\u6dfb\u52a0\u5143\u7d20\u5230\u96c6\u5408\uff0c\u6210\u529f\u8fd4\u56de true\uff08LinkedList \u65e0\u5bb9\u91cf\u9650\u5236\uff0c\u59cb\u7ec8\u6210\u529f\uff09\u3002ArrayList \u9002\u5408 \u201c\u8bfb\u591a\u5199\u5c11\u201d \u573a\u666f\uff0c\u5c24\u5176\u968f\u673a\u8bbf\u95ee\u9891\u7e41\u65f6\u3002LinkedList \u9002\u5408 \u201c\u5199\u591a\u8bfb\u5c11\u201d \u573a\u666f\uff0c\u5c24\u5176\u9700\u8981\u961f\u5217 \/ \u6808\u64cd\u4f5c\u65f6\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,190],"topic":[],"class_list":["post-43969","post","type-post","status-publish","format-standard","hentry","category-server","tag-java","tag-190"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java\u2014\u2014 ArrayList \u548c LinkedList \u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/43969.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u2014\u2014 ArrayList \u548c LinkedList \u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb400\u6b21\uff0c\u70b9\u8d5e3\u6b21\uff0c\u6536\u85cf4\u6b21\u3002poll()\uff1a\u83b7\u53d6\u5e76\u79fb\u9664\u96c6\u5408\u5934\u90e8\u5143\u7d20\uff0c\u7a7a\u96c6\u5408\u8fd4\u56de null\uff08\u533a\u522b\u4e8e remove() \u7684\u5f02\u5e38\uff09\u3002offer(E e)\uff1a\u6dfb\u52a0\u5143\u7d20\u5230\u96c6\u5408\uff0c\u6210\u529f\u8fd4\u56de true\uff08LinkedList \u65e0\u5bb9\u91cf\u9650\u5236\uff0c\u59cb\u7ec8\u6210\u529f\uff09\u3002ArrayList \u9002\u5408 \u201c\u8bfb\u591a\u5199\u5c11\u201d \u573a\u666f\uff0c\u5c24\u5176\u968f\u673a\u8bbf\u95ee\u9891\u7e41\u65f6\u3002LinkedList \u9002\u5408 \u201c\u5199\u591a\u8bfb\u5c11\u201d \u573a\u666f\uff0c\u5c24\u5176\u9700\u8981\u961f\u5217 \/ \u6808\u64cd\u4f5c\u65f6\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/43969.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-16T06:28:12+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 \u5206\" 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