{"id":31261,"date":"2023-10-26T07:49:54","date_gmt":"2023-10-02T18:54:30","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/java-list%e7%9a%84%e7%ac%94%e8%ae%b0\/"},"modified":"2025-08-12T23:07:17","modified_gmt":"2025-08-12T15:07:17","slug":"java-list%e7%9a%84%e7%ac%94%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java-list%e7%9a%84%e7%ac%94%e8%ae%b0\/","title":{"rendered":"[Java] List\u7684\u7b14\u8bb0"},"content":{"rendered":"<h1>\u76ee\u6807<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Java\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\uff11\u3064\u3067\u3042\u308b List \u306b\u3064\u3044\u3066\u3001\u6574\u7406\u3057\u3066\u307f\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5404\u30af\u30e9\u30b9\u3084\u30e1\u30bd\u30c3\u30c9\u306e\u8a73\u7d30\u306a\u8aac\u660e\u306f\u3057\u307e\u305b\u3093\u3002<\/ul>\n<h1>\u4e3b\u8981\u7684\u73ed\u7ea7<\/p>\n<dl>java.util.ArrayList &#8211; \u9635\u5217\u5217\u8868<\/dl>\n<p>&nbsp;<\/p>\n<dl>\u5177\u6709\u5feb\u901f\u7684\u968f\u673a\u8bbf\u95ee\u901f\u5ea6<\/dl>\n<p>&nbsp;<\/p>\n<dl>\u9700\u8981\u590d\u5236\u6570\u7ec4\u6765\u6dfb\u52a0\u6216\u5220\u9664\u5217\u8868\u7684\u5934\u90e8\u6216\u4e2d\u95f4\u5143\u7d20\uff0c\u56e0\u6b64\u901f\u5ea6\u8f83\u6162<\/dl>\n<p>java.util.LinkedList &#8211; \u7ebf\u6027\u94fe\u8868<br \/>\n\u968f\u673a\u8bbf\u95ee\u901f\u5ea6\u8f83\u6162<br \/>\n\u5bf9\u5217\u8868\u7684\u5934\u90e8\u6216\u4e2d\u95f4\u5143\u7d20\u8fdb\u884c\u6dfb\u52a0\u6216\u5220\u9664\u7684\u64cd\u4f5c\u901f\u5ea6\u8f83\u5feb<\/p>\n<p>java.util.Vector &#8211; \u65e7\u7684\u96c6\u5408\u6846\u67b6<br \/>\n\u57fa\u672c\u4e0a\u6bcf\u4e2a\u65b9\u6cd5\u90fd\u662f\u540c\u6b65\u7684<br \/>\n\u57fa\u672c\u4e0a\u4e0d\u4f7f\u7528<\/p>\n<h1>\u65b9\u4fbf\u7684\u65b9\u6cd5 de\u57fa\u672c\u4e0a\uff0c\u8fd9\u4e9b\u90fd\u5305\u542b\u5728java.util.Collections\u7c7b\u7684\u5b9e\u7528\u5de5\u5177\u7c7b\u4e2d\u3002<\/p>\n<p>\u6b64\u5916\uff0cjava.util.List\uff08\u6216\u5176\u7236\u7c7bjava.util.Collection\uff09\u8fd8\u5177\u6709\u65b9\u4fbf\u7684\u65b9\u6cd5\u3002<\/p>\n<h2>\u5c06\u6570\u7ec4\u4e0e\u5176\u4ed6\u6570\u636e\u7c7b\u578b\u76f8\u4e92\u8f6c\u6362<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">java.util.Arrays#asList()<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">java.util.Collection#toArray()<\/ul>\n<p>\u8bf7\u53c2\u8003\u6570\u7ec4\u7684\u6ce8\u91ca\u4ee5\u83b7\u53d6\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<h2>\u4eceEnumeration\u8f6c\u6362\u6210List\u3002<\/p>\n<ul class=\"post-ul\">java.util.Collections#list()<\/ul>\n<p>\u4e00\u6b21\u6027\u5c06\u6240\u6709\u5185\u5bb9\u52a0\u8f7d\u5e76\u8f6c\u5b58\u5230\u5217\u8868\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Properties<\/span> <span class=\"n\">properties<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">getProperties<\/span><span class=\"o\">();<\/span>\r\n<span class=\"nc\">Enumeration<\/span><span class=\"o\">&lt;?&gt;<\/span> <span class=\"n\">keyNames<\/span> <span class=\"o\">=<\/span> <span class=\"n\">properties<\/span><span class=\"o\">.<\/span><span class=\"na\">propertyNames<\/span><span class=\"o\">();<\/span>\r\n<span class=\"nc\">List<\/span><span class=\"o\">&lt;?&gt;<\/span> <span class=\"n\">list<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Collections<\/span><span class=\"o\">.<\/span><span class=\"na\">list<\/span><span class=\"o\">(<\/span><span class=\"n\">keyNames<\/span><span class=\"o\">);<\/span>\r\n\r\n<span class=\"k\">for<\/span> <span class=\"o\">(<\/span><span class=\"nc\">Object<\/span> <span class=\"n\">prop<\/span> <span class=\"o\">:<\/span> <span class=\"n\">list<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">prop<\/span><span class=\"o\">);<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u4e0eStream\u7684\u4e92\u76f8\u8f6c\u6362<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">java.util.Collection#stream()<\/ul>\n<\/li>\n<\/ul>\n<p>java.util.stream.Stream#collect() \u3068 java.util.stream.Collectors#toList() \u306e\u7d44\u307f\u5408\u308f\u305b<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">list<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Arrays<\/span><span class=\"o\">.<\/span><span class=\"na\">asList<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Alfa\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Bravo\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Charlie\"<\/span><span class=\"o\">);<\/span>\r\n<span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">result<\/span> <span class=\"o\">=<\/span> <span class=\"n\">list<\/span><span class=\"o\">.<\/span><span class=\"na\">stream<\/span><span class=\"o\">()<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"na\">filter<\/span><span class=\"o\">((<\/span><span class=\"n\">s<\/span><span class=\"o\">)<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"n\">s<\/span><span class=\"o\">.<\/span><span class=\"na\">contains<\/span><span class=\"o\">(<\/span><span class=\"s\">\"o\"<\/span><span class=\"o\">))<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"na\">collect<\/span><span class=\"o\">(<\/span><span class=\"nc\">Collectors<\/span><span class=\"o\">.<\/span><span class=\"na\">toList<\/span><span class=\"o\">());<\/span>\r\n<span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">result<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/ -&gt; \"[Bravo]\"<\/span>\r\n<\/code><\/pre>\n<p>\u4eceJDK16\u5f00\u59cb\uff0c\u6dfb\u52a0\u4e86Strem#toList()\u65b9\u6cd5\u3002\u8fd9\u4f7f\u5f97\u6211\u4eec\u80fd\u591f\u4ee5\u66f4\u77ed\u7684\u65b9\u5f0f\u7f16\u5199\u4ee3\u7801\u3002<br \/>\n\u7136\u800c\uff0c\u8bf7\u6ce8\u610f\uff0cStrem#toList()\u4f1a\u8fd4\u56de\u4e00\u4e2a\u4e0d\u53ef\u53d8\u7684\u5217\u8868\uff0c\u8fd9\u5728javadoc\u4e2d\u5df2\u7ecf\u660e\u786e\u8bf4\u660e\u4e86\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">list<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Arrays<\/span><span class=\"o\">.<\/span><span class=\"na\">asList<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Alfa\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Bravo\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Charlie\"<\/span><span class=\"o\">);<\/span>\r\n<span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">result<\/span> <span class=\"o\">=<\/span> <span class=\"n\">list<\/span><span class=\"o\">.<\/span><span class=\"na\">stream<\/span><span class=\"o\">()<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"na\">filter<\/span><span class=\"o\">((<\/span><span class=\"n\">s<\/span><span class=\"o\">)<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"n\">s<\/span><span class=\"o\">.<\/span><span class=\"na\">contains<\/span><span class=\"o\">(<\/span><span class=\"s\">\"o\"<\/span><span class=\"o\">))<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"na\">toList<\/span><span class=\"o\">();<\/span> <span class=\"c1\">\/\/ &lt;- \u77ed\u304f\uff01<\/span>\r\n<span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">result<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/ -&gt; \"[Bravo]\"<\/span>\r\n<\/code><\/pre>\n<p>\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u5173\u4e8eCollectors#toList()\u65b9\u6cd5\uff0c\u4ece\u5b9e\u73b0\u4e0a\u6765\u770b\uff0c\u5b83\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u53ef\u53d8\u7684\u5217\u8868\uff0c\u4f46\u662f\u5728javadoc\u4e2d\u5374\u6ce8\u660e\u4e86&#8221;\u8fd4\u56de\u7684\u5217\u8868\u7684\u7c7b\u578b\u3001\u53ef\u53d8\u6027\u3001\u53ef\u5e8f\u5217\u5316\u6027\u6216\u7ebf\u7a0b\u5b89\u5168\u6027\u5747\u4e0d\u88ab\u4fdd\u8bc1&#8221;\uff0c\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u5176\u662f\u53ef\u53d8\u7684\u3002\u987a\u5e26\u4e00\u63d0\uff0c\u8fd8\u6709\u4e00\u4e2a\u65b9\u6cd5\u53ebCollectors#toUnmodifiableList()\uff0c\u5b83\u4fdd\u8bc1\u8fd4\u56de\u4e00\u4e2a\u4e0d\u53ef\u53d8\u7684\u5217\u8868\u3002<\/p>\n<h2>\u4e00\u4e2a\u7a7a\u5217\u8868<\/p>\n<ul class=\"post-ul\">java.util.Collections#emptyList()<\/ul>\n<p>\u5982\u679c\u9700\u8981\u4e00\u4e2a\u7a7a\u5217\u8868\uff0c\u5728\u4e0d\u5fc5\u8981\u5730\u4f7f\u7528 new ArrayList() \u6765\u751f\u6210\u5b9e\u4f8b\u7684\u60c5\u51b5\u4e0b\uff0c\u6700\u597d\u91cd\u590d\u4f7f\u7528\u4e0d\u53ef\u53d8\u7684\u5bf9\u8c61\u3002<br \/>\n\u8bf7\u6ce8\u610f\u5b83\u662f\u4e0d\u53ef\u66f4\u6539\u7684\u3002<\/p>\n<ul class=\"post-ul\">java.util.List#of()<\/ul>\n<p>\u4eceJava 9\u5f00\u59cb\uff0c\u53ef\u4ee5\u4f7f\u7528List#of()\u6765\u521b\u5efa\u4e00\u4e2a\u4e0d\u53ef\u66f4\u6539\u7684\u7a7a\u5217\u8868\u3002\u8fd9\u4e2a\u65b9\u6cd5\u66f4\u7b80\u6d01\u3002<\/p>\n<h2>\u53ea\u80fd\u66f4\u6539\u4e00\u4e2a\u5143\u7d20\u7684\u4e0d\u53ef\u4fee\u6539\u5217\u8868\u3002<\/p>\n<ul class=\"post-ul\">java.util.Collections#singletonList()<\/ul>\n<p>\u6ce8\u610f\uff0c\u65e0\u6cd5\u8fdb\u884c\u66f4\u6539\u3002<\/p>\n<ul class=\"post-ul\">java.util.List#of(E)<\/ul>\n<p>\u4eceJava 9\u5f00\u59cb\uff0c\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u521b\u5efa\u4e0d\u53ef\u66f4\u6539\u7684\u5355\u5143\u7d20\u5217\u8868\u3002\u8fd9\u4e2a\u7248\u672c\u66f4\u7b80\u77ed\u3002<\/p>\n<h2>\u65e0\u6cd5\u66f4\u6539\u7684\u6e05\u5355\u5316<\/p>\n<ul class=\"post-ul\">java.util.Collections#unmodifiableList()<\/ul>\n<p>\u975e\u5e38\u611f\u8c22\u60a8\u5728\u6211\u9700\u8981\u4f7f\u7528\u5e38\u6570\u5217\u8868\u65f6\u6240\u63d0\u4f9b\u7684\u5e2e\u52a9\u3002<\/p>\n<ul class=\"post-ul\">java.util.List#of(E&#8230;)<\/ul>\n<p>\u4eceJava 9\u5f00\u59cb\uff0c\u53ef\u4ee5\u76f4\u63a5\u521b\u5efa\u4e0d\u53ef\u66f4\u6539\u7684\u5217\u8868\u3002\u8fd9\u79cd\u65b9\u5f0f\u66f4\u7b80\u77ed\u548c\u6613\u61c2\u3002<\/p>\n<h2>\u8fdb\u884c\u540c\u671f\u5217\u8868\u5316<\/p>\n<ul class=\"post-ul\">java.util.Collections#synchronizedList()<\/ul>\n<h2>\u52a8\u6001\u4fdd\u8bc1<\/p>\n<ul class=\"post-ul\">java.util.Collections#checkedList()<\/ul>\n<h2>\u5176\u4ed6java.util.Collections#addAll() &#8211; \u307e\u3068\u3081\u3066\u8ffd\u52a0<\/p>\n<p>java.util.Collections#copy() &#8211; \u30b3\u30d4\u30fc<\/p>\n<p>java.util.Collections#fill() &#8211; \u5024\u306e\u8a2d\u5b9a(\u30ea\u30b9\u30c8\u306e\u30b5\u30a4\u30ba\u306f\u5909\u308f\u3089\u306a\u3044)<\/p>\n<p>java.util.Collections#shuffle() &#8211; \u30b7\u30e3\u30c3\u30d5\u30eb<br \/>\n\u3044\u308d\u3044\u308d<\/p>\n<h2>subList()\u65b9\u6cd5<br \/>\nsubList()\u662f\u4e00\u4e2a\u8fd4\u56de\u5217\u8868\u7684\u5b50\u5217\u8868\u5b9e\u4f8b\u7684\u65b9\u6cd5\uff0c\u4f46\u662f\u5b50\u5217\u8868\u7684\u5143\u7d20\u4e0e\u539f\u5217\u8868\u662f\u5171\u4eab\u7684\u3002<\/p>\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0c\u5982\u679c\u4fee\u6539\u90e8\u5206\u5217\u8868\uff0c\u4e3b\u5217\u8868\u4e5f\u4f1a\u88ab\u4fee\u6539\uff0c\u53cd\u4e4b\u4ea6\u7136\uff0c\u5982\u679c\u4fee\u6539\u4e3b\u5217\u8868\uff0c\u90e8\u5206\u5217\u8868\u4e5f\u4f1a\u88ab\u4fee\u6539\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">list<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ArrayList<\/span><span class=\"o\">&lt;&gt;();<\/span>\r\n<span class=\"nc\">Collections<\/span><span class=\"o\">.<\/span><span class=\"na\">addAll<\/span><span class=\"o\">(<\/span><span class=\"n\">list<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Alfa\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Bravo\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Charlie\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Delta\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Echo\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Foxtrot\"<\/span><span class=\"o\">);<\/span>\r\n\r\n<span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">subList<\/span> <span class=\"o\">=<\/span> <span class=\"n\">list<\/span><span class=\"o\">.<\/span><span class=\"na\">subList<\/span><span class=\"o\">(<\/span><span class=\"mi\">1<\/span><span class=\"o\">,<\/span> <span class=\"mi\">3<\/span><span class=\"o\">);<\/span>\r\n<span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">subList<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/ -&gt; \"[Bravo, Charlie]\"<\/span>\r\n\r\n<span class=\"n\">subList<\/span><span class=\"o\">.<\/span><span class=\"na\">set<\/span><span class=\"o\">(<\/span><span class=\"mi\">0<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"x\"<\/span><span class=\"o\">);<\/span>\r\n<span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">subList<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/ -&gt; \"[x, Charlie]\"<\/span>\r\n<span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">list<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/ -&gt; \"[Alfa, x, Charlie, Delta, Echo, Foxtrot]\"<\/span>\r\n<\/code><\/pre>\n<p>\u5229\u7528\u8fd9\u4e2a\u53ef\u4ee5\u8fdb\u884c\u5217\u8868\u7684\u90e8\u5206\u5220\u9664\u548c\u66ff\u6362\u7b49\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">list<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ArrayList<\/span><span class=\"o\">&lt;&gt;();<\/span>\r\n<span class=\"nc\">Collections<\/span><span class=\"o\">.<\/span><span class=\"na\">addAll<\/span><span class=\"o\">(<\/span><span class=\"n\">list<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Alfa\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Bravo\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Charlie\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Delta\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Echo\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Foxtrot\"<\/span><span class=\"o\">);<\/span>\r\n\r\n<span class=\"n\">list<\/span><span class=\"o\">.<\/span><span class=\"na\">subList<\/span><span class=\"o\">(<\/span><span class=\"mi\">1<\/span><span class=\"o\">,<\/span> <span class=\"mi\">3<\/span><span class=\"o\">).<\/span><span class=\"na\">clear<\/span><span class=\"o\">();<\/span>\r\n<span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">list<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/ -&gt; \"[Alfa, Delta, Echo, Foxtrot]\"<\/span>\r\n<\/code><\/pre>\n<p>\u5f53\u53ea\u9700\u8981\u90e8\u5206\u5217\u8868\u65f6\uff0c\u4fdd\u7559\u539f\u5217\u8868\u662f\u591a\u4f59\u7684\u3002\u56e0\u6b64\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u91cd\u65b0\u521b\u5efa\u90e8\u5206\u5217\u8868\u53ef\u80fd\u66f4\u597d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"nf\">getXxxList<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"c1\">\/\/ \u5de8\u5927\u306a\u30ea\u30b9\u30c8\u3092\u53d6\u5f97\u3057\u3066\u3057\u307e\u3063\u305f<\/span>\r\n    <span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">hugeList<\/span> <span class=\"o\">=<\/span> <span class=\"n\">getHugeList<\/span><span class=\"o\">();<\/span>\r\n\r\n    <span class=\"c1\">\/\/ \u5fc5\u8981\u306a\u306e\u306f\u4e00\u90e8\u3060\u3051<\/span>\r\n    <span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">subList<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ArrayList<\/span><span class=\"o\">&lt;&gt;(<\/span><span class=\"n\">hugeList<\/span><span class=\"o\">.<\/span><span class=\"na\">subList<\/span><span class=\"o\">(<\/span><span class=\"mi\">1<\/span><span class=\"o\">,<\/span> <span class=\"mi\">3<\/span><span class=\"o\">));<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">subList<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h1>java.util.RandomAccess\u63a5\u53e3\u7684\u4e2d\u6587\u91ca\u4e49\u662f\u4ec0\u4e48\uff1f\u5982\u679c\u60a8\u81ea\u5df1\u521b\u5efa\u4e86List\u7c7b\uff0c\u6211\u8ba4\u4e3a\u6700\u597d\u5b9e\u73b0RandomAccess\u63a5\u53e3\uff0c\u4ee5\u4fbf\u80fd\u591f\u8fdb\u884c\u968f\u673a\u8bbf\u95ee\u3002<\/p>\n<h1>\u5bf9\u4e0d\u53ef\u53d8\u5217\u8868\u8fdb\u884c\u521d\u59cb\u5316\u3002<br \/>\n\u4e3a\u4e86\u5b9e\u73b0\u5b9a\u503c\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u751f\u6210\u4e0d\u53ef\u53d8\u5217\u8868\u662f\u76f8\u5bf9\u8f83\u5e38\u89c1\u7684\u3002<\/p>\n<p>\u6bcf\u6b21\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u7ecf\u5e38\u9700\u8981\u5c06Collections\uff03unmodifiableList\uff08\uff09\u548cArrays\uff03asList\uff08\uff09\u7ec4\u5408\u4f7f\u7528\uff0c\u4f46\u7531\u4e8e\u8fd9\u6837\u5199\u9ebb\u70e6\uff0c\u6240\u4ee5\u6211\u7ecf\u5e38\u8981\u521b\u9020\u4e0b\u9762\u8fd9\u79cd\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@SafeVarargs<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"o\">&lt;<\/span><span class=\"no\">E<\/span><span class=\"o\">&gt;<\/span> <span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"no\">E<\/span><span class=\"o\">&gt;<\/span> <span class=\"nf\">toConstList<\/span><span class=\"o\">(<\/span><span class=\"no\">E<\/span><span class=\"o\">...<\/span> <span class=\"n\">data<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"kt\">int<\/span> <span class=\"n\">length<\/span> <span class=\"o\">=<\/span> <span class=\"o\">(<\/span><span class=\"n\">data<\/span> <span class=\"o\">==<\/span> <span class=\"kc\">null<\/span><span class=\"o\">)<\/span> <span class=\"o\">?<\/span> <span class=\"mi\">0<\/span> <span class=\"o\">:<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"na\">length<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"k\">switch<\/span> <span class=\"o\">(<\/span><span class=\"n\">length<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"mi\">0<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">Collections<\/span><span class=\"o\">.<\/span><span class=\"na\">emptyList<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"mi\">1<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">Collections<\/span><span class=\"o\">.<\/span><span class=\"na\">singletonList<\/span><span class=\"o\">(<\/span><span class=\"n\">data<\/span><span class=\"o\">[<\/span><span class=\"mi\">0<\/span><span class=\"o\">]);<\/span>\r\n    <span class=\"k\">default<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">Collections<\/span><span class=\"o\">.<\/span><span class=\"na\">unmodifiableList<\/span><span class=\"o\">(<\/span><span class=\"nc\">Arrays<\/span><span class=\"o\">.<\/span><span class=\"na\">asList<\/span><span class=\"o\">(<\/span><span class=\"n\">data<\/span><span class=\"o\">));<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u53ea\u9700\u8981\u6700\u540e\u4e00\u4e2a\u9ed8\u8ba4\u90e8\u5206\u5c31\u8db3\u591f\u4e86\u3002<\/p>\n<p>\u5728Java 9\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u7acb\u5373\u521b\u5efa\u4e0d\u53ef\u66f4\u6539\u7684\u5217\u8868\uff0c\u8fd9\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"kd\">private<\/span> <span class=\"kd\">static<\/span> <span class=\"kd\">final<\/span> <span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"no\">NAMES<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">List<\/span><span class=\"o\">.<\/span><span class=\"na\">of<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Foo\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Bar\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Baz\"<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u6807 Java\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\uff11\u3064\u3067\u3042\u308b List \u306b\u3064\u3044\u3066\u3001\u6574\u7406\u3057\u3066\u307f\u307e\u3059\u3002 &nbsp; \u5404 [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31261","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast 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property=\"article:published_time\" content=\"2023-10-02T18:54:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-12T15:07:17+00:00\" \/>\n<meta name=\"author\" content=\"\u5b87, \u534e\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u5b87, \u534e\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/java-list%e7%9a%84%e7%ac%94%e8%ae%b0\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/java-list%e7%9a%84%e7%ac%94%e8%ae%b0\/\",\"name\":\"[Java] List\u7684\u7b14\u8bb0 - Blog - Silicon 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