{"id":38221,"date":"2024-11-26T17:06:28","date_gmt":"2024-11-26T09:06:28","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38221\/"},"modified":"2024-11-26T17:06:28","modified_gmt":"2024-11-26T09:06:28","slug":"java%e6%80%8e%e4%b9%88%e7%bb%992%e7%bb%b4%e6%95%b0%e7%bb%84%e8%b5%8b%e5%80%bc","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38221\/","title":{"rendered":"java\u600e\u4e48\u7ed92\u7ef4\u6570\u7ec4\u8d4b\u503c"},"content":{"rendered":"<blockquote><p>\n  \u901a\u8fc7\u4ee5\u4e0b\u4e09\u79cd\u65b9\u6cd5\u53ef\u7ed9 java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c\uff1a1. \u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u9010\u4e2a\u5143\u7d20\u8d4b\u503c\uff1b2. \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u4e00\u6b21\u6027\u8d4b\u503c\u6240\u6709\u5143\u7d20\uff1b3. \u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u4e3a\u6240\u6709\u5143\u7d20\u8d4b\u503c\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/14\/2024111411064762664.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u7ed92\u7ef4\u6570\u7ec4\u8d4b\u503c\u63d2\u56fe\" alt=\"java\u600e\u4e48\u7ed92\u7ef4\u6570\u7ec4\u8d4b\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u7ed9 Java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c\uff1f<\/strong><\/p>\n<p><strong>\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528\u5faa\u73af<\/strong><\/p>\n<p>\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u53ef\u4ee5\u9010\u4e2a\u5143\u7d20\u7ed9\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[][] arr = new int[3][4];\n\nfor (int i = 0; i &lt; arr.length; i++) {\n    for (int j = 0; j &lt; arr[i].length; j++) {\n        arr[i][j] = i * j;\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u6570\u7ec4\u521d\u59cb\u5316\u5668\u53ef\u4ee5\u4e00\u6b21\u7ed9\u4e8c\u7ef4\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u8d4b\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[][] arr = {\n    {1, 2, 3, 4},\n    {5, 6, 7, 8},\n    {9, 10, 11, 12}\n};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5\u4e09\uff1a\u4f7f\u7528 Arrays.fill()<\/strong><\/p>\n<p>Arrays.fill() \u65b9\u6cd5\u53ef\u4ee5\u7ed9\u6570\u7ec4\u6216\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u8d4b\u503c\u4e3a\u6307\u5b9a\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[][] arr = new int[3][4];\n\nfor (int[] row : arr) {\n    Arrays.fill(row, 5);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u7ed92\u7ef4\u6570\u7ec4\u8d4b\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>\u901a\u8fc7\u4ee5\u4e0b\u4e09\u79cd\u65b9\u6cd5\u53ef\u7ed9 java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c\uff1a1. \u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u9010\u4e2a\u5143\u7d20\u8d4b\u503c\uff1b2. \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u4e00\u6b21\u6027\u8d4b\u503c\u6240\u6709\u5143\u7d20\uff1b3. \u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u4e3a\u6240\u6709\u5143\u7d20\u8d4b\u503c\u3002 \u5982\u4f55\u7ed9 Java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c\uff1f \u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528\u5faa\u73af \u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u53ef\u4ee5\u9010\u4e2a\u5143\u7d20\u7ed9\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c\u3002\u4f8b\u5982\uff1a int[][] arr = new int[3][4]; for (int i = 0; i &lt; arr.length; i++) { for (int j = 0; j &lt; arr[i].length; j++) { arr[i][j] = i * j; } } \u767b\u5f55\u540e\u590d\u5236 \u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u6570\u7ec4\u521d\u59cb\u5316\u5668\u53ef\u4ee5\u4e00\u6b21\u7ed9\u4e8c\u7ef4\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u8d4b\u503c\u3002\u4f8b\u5982\uff1a int[][] arr = { {1, 2, [&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-38221","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38221","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=38221"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38221\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}