{"id":65762,"date":"2025-05-03T13:49:48","date_gmt":"2025-05-03T05:49:48","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65762\/"},"modified":"2025-05-03T13:49:48","modified_gmt":"2025-05-03T05:49:48","slug":"java%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e6%b7%bb%e5%8a%a0%e5%92%8c%e5%8a%a0%e9%95%bf-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65762\/","title":{"rendered":"java\u6570\u7ec4\u600e\u4e48\u6dfb\u52a0\u548c\u52a0\u957f"},"content":{"rendered":"<blockquote><p>\n  \u65e0\u6cd5\u76f4\u63a5\u5411 java \u6570\u7ec4\u6dfb\u52a0\u5143\u7d20\u3002\u9700\u8981\u52a0\u957f\u6570\u7ec4\uff0c\u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u590d\u5236\u539f\u6570\u7ec4\u5143\u7d20\uff0c\u7136\u540e\u6dfb\u52a0\u65b0\u5143\u7d20\u3002\u53ef\u4f7f\u7528 arraylist \u7c7b\u5b9e\u73b0\u52a8\u6001\u8c03\u6574\u5927\u5c0f\u7684\u96c6\u5408\uff0c\u8f7b\u677e\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111309271949911.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u600e\u4e48\u6dfb\u52a0\u548c\u52a0\u957f\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u600e\u4e48\u6dfb\u52a0\u548c\u52a0\u957f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5411 Java \u6570\u7ec4\u6dfb\u52a0\u548c\u52a0\u957f\u5143\u7d20<\/strong><\/p>\n<p><strong>\u6dfb\u52a0\u5143\u7d20<\/strong><\/p>\n<p>Java \u6570\u7ec4\u662f\u56fa\u5b9a\u5927\u5c0f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4e00\u65e6\u521b\u5efa\uff0c\u5c31\u65e0\u6cd5\u66f4\u6539\u5176\u5927\u5c0f\u3002\u56e0\u6b64\uff0c\u65e0\u6cd5\u76f4\u63a5\u5411\u73b0\u6709\u6570\u7ec4\u6dfb\u52a0\u5143\u7d20\u3002<\/p>\n<p><strong>\u52a0\u957f\u6570\u7ec4<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u4e3a\u4e86\u6dfb\u52a0\u5143\u7d20\uff0c\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5927\u5c0f\u6bd4\u539f\u6570\u7ec4\u5927\u3002\u7136\u540e\uff0c\u5c06\u539f\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\uff0c\u5e76\u6dfb\u52a0\u4efb\u4f55\u65b0\u5143\u7d20\u3002<\/p>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>int[] originalArray = {1, 2, 3};\n\n\/\/ \u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5927\u5c0f\u4e3a\u539f\u6570\u7ec4\u5927\u5c0f\u52a0 1\nint[] newArray = new int[originalArray.length + 1];\n\n\/\/ \u5c06\u539f\u6570\u7ec4\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\nSystem.arraycopy(originalArray, 0, newArray, 0, originalArray.length);\n\n\/\/ \u5728\u65b0\u6570\u7ec4\u4e2d\u6dfb\u52a0\u65b0\u5143\u7d20\nnewArray[newArray.length - 1] = 4;\n\n\/\/ \u66f4\u65b0 originalArray \u4ee5\u5f15\u7528\u65b0\u6570\u7ec4\noriginalArray = newArray;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 ArrayList<\/strong><\/p>\n<p>\u5bf9\u4e8e\u9700\u8981\u52a8\u6001\u8c03\u6574\u5927\u5c0f\u7684\u96c6\u5408\uff0c\u63a8\u8350\u4f7f\u7528 ArrayList \u7c7b\u3002ArrayList \u662f\u4e00\u4e2a\u53ef\u53d8\u5927\u5c0f\u7684\u6570\u7ec4\u96c6\u5408\uff0c\u53ef\u8f7b\u677e\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002<\/p>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>ArrayList&lt;Integer&gt; arrayList = new ArrayList&lt;&gt;();\n\n\/\/ \u6dfb\u52a0\u5143\u7d20\narrayList.add(1);\narrayList.add(2);\narrayList.add(3);\n\n\/\/ \u6dfb\u52a0\u65b0\u5143\u7d20\narrayList.add(4);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u600e\u4e48\u6dfb\u52a0\u548c\u52a0\u957f\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>\u65e0\u6cd5\u76f4\u63a5\u5411 java \u6570\u7ec4\u6dfb\u52a0\u5143\u7d20\u3002\u9700\u8981\u52a0\u957f\u6570\u7ec4\uff0c\u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u590d\u5236\u539f\u6570\u7ec4\u5143\u7d20\uff0c\u7136\u540e\u6dfb\u52a0\u65b0\u5143\u7d20\u3002\u53ef\u4f7f\u7528 arraylist \u7c7b\u5b9e\u73b0\u52a8\u6001\u8c03\u6574\u5927\u5c0f\u7684\u96c6\u5408\uff0c\u8f7b\u677e\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002 \u5982\u4f55\u5411 Java \u6570\u7ec4\u6dfb\u52a0\u548c\u52a0\u957f\u5143\u7d20 \u6dfb\u52a0\u5143\u7d20 Java \u6570\u7ec4\u662f\u56fa\u5b9a\u5927\u5c0f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4e00\u65e6\u521b\u5efa\uff0c\u5c31\u65e0\u6cd5\u66f4\u6539\u5176\u5927\u5c0f\u3002\u56e0\u6b64\uff0c\u65e0\u6cd5\u76f4\u63a5\u5411\u73b0\u6709\u6570\u7ec4\u6dfb\u52a0\u5143\u7d20\u3002 \u52a0\u957f\u6570\u7ec4 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u4e3a\u4e86\u6dfb\u52a0\u5143\u7d20\uff0c\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5927\u5c0f\u6bd4\u539f\u6570\u7ec4\u5927\u3002\u7136\u540e\uff0c\u5c06\u539f\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\uff0c\u5e76\u6dfb\u52a0\u4efb\u4f55\u65b0\u5143\u7d20\u3002 \u4ee3\u7801\u793a\u4f8b\uff1a int[] originalArray = {1, 2, 3}; \/\/ \u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5927\u5c0f\u4e3a\u539f\u6570\u7ec4\u5927\u5c0f\u52a0 1 int[] newArray = new int[originalArray.length + 1]; \/\/ \u5c06\u539f\u6570\u7ec4\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4 System.arraycopy(originalArray, 0, newArray, 0, originalArray.length); \/\/ \u5728\u65b0\u6570\u7ec4\u4e2d\u6dfb\u52a0\u65b0\u5143\u7d20 newArray[newArray.length &#8211; 1] = 4; \/\/ \u66f4\u65b0 originalArray \u4ee5\u5f15\u7528\u65b0\u6570\u7ec4 originalArray = newArray; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 ArrayList [&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-65762","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65762","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=65762"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65762\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}