{"id":37257,"date":"2024-11-26T12:15:58","date_gmt":"2024-11-26T04:15:58","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37257\/"},"modified":"2024-11-26T12:15:58","modified_gmt":"2024-11-26T04:15:58","slug":"java-%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%be%aa%e7%8e%af%e6%8f%92%e5%85%a5%e5%80%bc","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37257\/","title":{"rendered":"java \u6570\u7ec4\u600e\u4e48\u5faa\u73af\u63d2\u5165\u503c"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u6570\u7ec4\u65e0\u6cd5\u76f4\u63a5\u5faa\u73af\u63d2\u5165\u503c\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\u7c7b\u4f3c\u6548\u679c\uff1a\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u590d\u5236\u539f\u6570\u7ec4\u5e76\u63d2\u5165\u65b0\u503c\u3002\u5c06\u539f\u6570\u7ec4\u8f6c\u6362\u4e3a arraylist\uff0c\u5e76\u6dfb\u52a0\u5230 arraylist \u4e2d\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111303091626557.jpg\" class=\"aligncenter\" title=\"java \u6570\u7ec4\u600e\u4e48\u5faa\u73af\u63d2\u5165\u503c\u63d2\u56fe\" alt=\"java \u6570\u7ec4\u600e\u4e48\u5faa\u73af\u63d2\u5165\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u6570\u7ec4\u5faa\u73af\u63d2\u5165\u503c<\/strong><\/p>\n<p><strong>\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u65e0\u6cd5\u6539\u53d8\u5927\u5c0f\uff0c\u56e0\u6b64\u65e0\u6cd5\u76f4\u63a5\u5faa\u73af\u63d2\u5165\u503c\u3002\u4f46\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\u7c7b\u4f3c\u7684\u6548\u679c\uff1a<\/p>\n<p><strong>1. \u521b\u5efa\u65b0\u6570\u7ec4<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u6bd4\u539f\u6570\u7ec4\u5927\u7684\u65b0\u6570\u7ec4\uff0c\u5e76\u5c06\u539f\u6570\u7ec4\u4e2d\u7684\u503c\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\u3002\u7136\u540e\uff0c\u5c06\u65b0\u503c\u63d2\u5165\u5230\u65b0\u6570\u7ec4\u4e2d\u3002<\/p>\n<p><strong>2. \u4f7f\u7528 ArrayList<\/strong><\/p>\n<p>ArrayList \u662f Java \u4e2d\u4e00\u4e2a\u53ef\u53d8\u5927\u5c0f\u7684\u96c6\u5408\uff0c\u53ef\u4ee5\u52a8\u6001\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002\u5c06\u539f\u6570\u7ec4\u7684\u503c\u8f6c\u6362\u4e3a ArrayList\uff0c\u7136\u540e\u5c06\u65b0\u503c\u6dfb\u52a0\u5230 ArrayList \u4e2d\u3002<\/p>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u4f7f\u7528\u65b0\u6570\u7ec4<\/strong><\/p>\n<pre>int[] originalArray = {1, 2, 3, 4, 5};\nint newValue = 6;\n\n\/\/ \u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u590d\u5236\u539f\u6570\u7ec4\u7684\u503c\nint[] newArray = new int[originalArray.length + 1];\nfor (int i = 0; i &lt; originalArray.length; i++) {\n    newArray[i] = originalArray[i];\n}\n\n\/\/ \u63d2\u5165\u65b0\u503c\nnewArray[newArray.length - 1] = newValue;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528 ArrayList<\/strong><\/p>\n<pre>int[] originalArray = {1, 2, 3, 4, 5};\nint newValue = 6;\n\n\/\/ \u5c06\u539f\u6570\u7ec4\u8f6c\u6362\u4e3a ArrayList\nArrayList&lt;Integer&gt; arrayList = new ArrayList&lt;&gt;();\nfor (int value : originalArray) {\n    arrayList.add(value);\n}\n\n\/\/ \u63d2\u5165\u65b0\u503c\narrayList.add(newValue);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava \u6570\u7ec4\u600e\u4e48\u5faa\u73af\u63d2\u5165\u503c\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 java \u4e2d\uff0c\u6570\u7ec4\u65e0\u6cd5\u76f4\u63a5\u5faa\u73af\u63d2\u5165\u503c\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\u7c7b\u4f3c\u6548\u679c\uff1a\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u590d\u5236\u539f\u6570\u7ec4\u5e76\u63d2\u5165\u65b0\u503c\u3002\u5c06\u539f\u6570\u7ec4\u8f6c\u6362\u4e3a arraylist\uff0c\u5e76\u6dfb\u52a0\u5230 arraylist \u4e2d\u3002 Java \u6570\u7ec4\u5faa\u73af\u63d2\u5165\u503c \u65b9\u6cd5\uff1a \u5728 Java \u4e2d\uff0c\u6570\u7ec4\u65e0\u6cd5\u6539\u53d8\u5927\u5c0f\uff0c\u56e0\u6b64\u65e0\u6cd5\u76f4\u63a5\u5faa\u73af\u63d2\u5165\u503c\u3002\u4f46\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\u7c7b\u4f3c\u7684\u6548\u679c\uff1a 1. \u521b\u5efa\u65b0\u6570\u7ec4 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u6bd4\u539f\u6570\u7ec4\u5927\u7684\u65b0\u6570\u7ec4\uff0c\u5e76\u5c06\u539f\u6570\u7ec4\u4e2d\u7684\u503c\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\u3002\u7136\u540e\uff0c\u5c06\u65b0\u503c\u63d2\u5165\u5230\u65b0\u6570\u7ec4\u4e2d\u3002 2. \u4f7f\u7528 ArrayList ArrayList \u662f Java \u4e2d\u4e00\u4e2a\u53ef\u53d8\u5927\u5c0f\u7684\u96c6\u5408\uff0c\u53ef\u4ee5\u52a8\u6001\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002\u5c06\u539f\u6570\u7ec4\u7684\u503c\u8f6c\u6362\u4e3a ArrayList\uff0c\u7136\u540e\u5c06\u65b0\u503c\u6dfb\u52a0\u5230 ArrayList \u4e2d\u3002 \u4ee3\u7801\u793a\u4f8b\uff1a \u65b9\u6cd5 1\uff1a\u4f7f\u7528\u65b0\u6570\u7ec4 int[] originalArray = {1, 2, 3, 4, 5}; int newValue = 6; \/\/ \u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u590d\u5236\u539f\u6570\u7ec4\u7684\u503c int[] newArray = new int[originalArray.length + 1]; for (int i = 0; [&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-37257","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37257","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=37257"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37257\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}