{"id":66867,"date":"2025-05-03T09:32:45","date_gmt":"2025-05-03T01:32:45","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66867\/"},"modified":"2025-05-03T09:32:45","modified_gmt":"2025-05-03T01:32:45","slug":"java%e6%80%8e%e4%b9%88%e5%8a%a8%e6%80%81%e5%ae%9a%e4%b9%89%e4%b8%80%e4%b8%aa%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66867\/","title":{"rendered":"java\u600e\u4e48\u52a8\u6001\u5b9a\u4e49\u4e00\u4e2a\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u52a8\u6001\u5b9a\u4e49\u6570\u7ec4\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4e09\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 arraylist\uff1a\u521b\u5efa\u4e00\u4e2a arraylist \u5bf9\u8c61\u5e76\u4f7f\u7528 add() \u65b9\u6cd5\u6dfb\u52a0\u5143\u7d20\u3002\u4f7f\u7528 arrays.aslist()\uff1a\u5c06\u4e00\u4e2a\u9759\u6001\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u4e2a arraylist\u3002\u4f7f\u7528 guava \u5e93\u7684 listbuilder\uff1a\u521b\u5efa\u4e00\u4e2a listbuilder \u5bf9\u8c61\u5e76\u4f7f\u7528 add() \u65b9\u6cd5\u6dfb\u52a0\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111713153623527.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u52a8\u6001\u5b9a\u4e49\u4e00\u4e2a\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u52a8\u6001\u5b9a\u4e49\u4e00\u4e2a\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 Java \u52a8\u6001\u5b9a\u4e49\u6570\u7ec4<\/strong><\/p>\n<p><strong>\u4f7f\u7528 ArrayList<\/strong><\/p>\n<p>ArrayList \u662f Java \u4e2d\u4e00\u4e2a\u53ef\u53d8\u6570\u7ec4\u5217\u8868\uff0c\u53ef\u4ee5\u52a8\u6001\u5730\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002\u8981\u52a8\u6001\u5b9a\u4e49\u4e00\u4e2a ArrayList\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>ArrayList&lt;Integer&gt; list = new ArrayList&lt;&gt;();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Arrays.asList()<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>Arrays.asList() \u65b9\u6cd5\u53ef\u4ee5\u5c06\u4e00\u4e2a\u9759\u6001\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u4e2a ArrayList\u3002\u8981\u52a8\u6001\u5b9a\u4e49\u4e00\u4e2a\u4f7f\u7528 Arrays.asList() \u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nList&lt;Integer&gt; list = Arrays.asList(arr);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Guava Library<\/strong><\/p>\n<p>Guava \u5e93\u63d0\u4f9b ListBuilder \u7c7b\uff0c\u5b83\u53ef\u4ee5\u8f7b\u677e\u5730\u52a8\u6001\u5b9a\u4e49\u6570\u7ec4\u3002\u8981\u4f7f\u7528 ListBuilder\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>ListBuilder&lt;Integer&gt; builder = Lists.newArrayList();\nbuilder.add(1).add(2).add(3);\nList&lt;Integer&gt; list = builder.build();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u8981\u52a8\u6001\u5b9a\u4e49\u4e00\u4e2a\u5305\u542b\u6570\u5b57 1 \u5230 10 \u7684\u6570\u7ec4\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>ArrayList&lt;Integer&gt; list = new ArrayList&lt;&gt;();\nfor (int i = 1; i &lt;= 10; i++) {\n    list.add(i);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4ee3\u7801\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a<\/p>\n<pre>for (int num : list) {\n    System.out.println(num);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8f93\u51fa\uff1a<\/strong><\/p>\n<pre>1\n2\n3\n4\n5\n6\n7\n8\n9\n10<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u52a8\u6001\u5b9a\u4e49\u4e00\u4e2a\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 java \u4e2d\u52a8\u6001\u5b9a\u4e49\u6570\u7ec4\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4e09\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 arraylist\uff1a\u521b\u5efa\u4e00\u4e2a arraylist \u5bf9\u8c61\u5e76\u4f7f\u7528 add() \u65b9\u6cd5\u6dfb\u52a0\u5143\u7d20\u3002\u4f7f\u7528 arrays.aslist()\uff1a\u5c06\u4e00\u4e2a\u9759\u6001\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u4e2a arraylist\u3002\u4f7f\u7528 guava \u5e93\u7684 listbuilder\uff1a\u521b\u5efa\u4e00\u4e2a listbuilder \u5bf9\u8c61\u5e76\u4f7f\u7528 add() \u65b9\u6cd5\u6dfb\u52a0\u5143\u7d20\u3002 \u5982\u4f55\u4f7f\u7528 Java \u52a8\u6001\u5b9a\u4e49\u6570\u7ec4 \u4f7f\u7528 ArrayList ArrayList \u662f Java \u4e2d\u4e00\u4e2a\u53ef\u53d8\u6570\u7ec4\u5217\u8868\uff0c\u53ef\u4ee5\u52a8\u6001\u5730\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002\u8981\u52a8\u6001\u5b9a\u4e49\u4e00\u4e2a ArrayList\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a ArrayList&lt;Integer&gt; list = new ArrayList&lt;&gt;(); \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 Arrays.asList() \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Arrays.asList() \u65b9\u6cd5\u53ef\u4ee5\u5c06\u4e00\u4e2a\u9759\u6001\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u4e2a ArrayList\u3002\u8981\u52a8\u6001\u5b9a\u4e49\u4e00\u4e2a\u4f7f\u7528 Arrays.asList() \u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a int[] arr = {1, 2, 3, 4, 5}; List&lt;Integer&gt; list = Arrays.asList(arr); \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-66867","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66867","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=66867"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66867\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}