{"id":35000,"date":"2024-11-26T14:51:13","date_gmt":"2024-11-26T06:51:13","guid":{"rendered":"https:\/\/fwq.ai\/blog\/35000\/"},"modified":"2024-11-26T14:51:13","modified_gmt":"2024-11-26T06:51:13","slug":"java%e6%80%8e%e4%b9%88%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e5%af%b9%e8%a7%92%e7%ba%bf","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/35000\/","title":{"rendered":"java\u600e\u4e48\u4e8c\u7ef4\u6570\u7ec4\u5bf9\u89d2\u7ebf"},"content":{"rendered":"<blockquote><p>\n  \u83b7\u53d6 java \u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u5bf9\u89d2\u7ebf\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u83b7\u53d6\u4e3b\u5bf9\u89d2\u7ebf\uff1a\u9010\u884c\u5217\u51fa arrayi \u5143\u7d20\u3002\u4f7f\u7528 java.util.arrays.diagonals \u7c7b\uff1a\u4f7f\u7528 stream() \u548c parallelprefix() \u65b9\u6cd5\u83b7\u53d6\u5bf9\u89d2\u7ebf\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110308093063662.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u4e8c\u7ef4\u6570\u7ec4\u5bf9\u89d2\u7ebf\u63d2\u56fe\" alt=\"java\u600e\u4e48\u4e8c\u7ef4\u6570\u7ec4\u5bf9\u89d2\u7ebf\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u83b7\u53d6\u4e8c\u7ef4\u6570\u7ec4\u5bf9\u89d2\u7ebf<\/strong><\/p>\n<p>\u8981\u83b7\u53d6 Java \u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u5bf9\u89d2\u7ebf\uff0c\u6709\u4e24\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u4f7f\u7528\u5d4c\u5957\u5faa\u73af<\/strong><\/p>\n<pre>int[][] array = {\n    {1, 2, 3},\n    {4, 5, 6},\n    {7, 8, 9}\n};\n\nint[] diagonal = new int[array.length];\n\n\/\/ \u83b7\u53d6\u4e3b\u5bf9\u89d2\u7ebf\nfor (int i = 0; i &lt; array.length; i++) {\n    diagonal[i] = array[i][i];\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528\u5bf9\u89d2\u7ebf\u7c7b<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 java.util.Arrays.Diagonals \u7c7b\u6765\u83b7\u53d6\u4e8c\u7ef4\u6570\u7ec4\u7684\u5bf9\u89d2\u7ebf\u3002<\/p>\n<pre>import java.util.Arrays;\n\nint[][] array = {\n    {1, 2, 3},\n    {4, 5, 6},\n    {7, 8, 9}\n};\n\nint[] diagonal = Arrays.stream(array)\n    .map(Arrays::parallelPrefix)\n    .toArray(int[]::new);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u4e8c\u7ef4\u6570\u7ec4\u5bf9\u89d2\u7ebf\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>\u83b7\u53d6 java \u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u5bf9\u89d2\u7ebf\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u83b7\u53d6\u4e3b\u5bf9\u89d2\u7ebf\uff1a\u9010\u884c\u5217\u51fa arrayi \u5143\u7d20\u3002\u4f7f\u7528 java.util.arrays.diagonals \u7c7b\uff1a\u4f7f\u7528 stream() \u548c parallelprefix() \u65b9\u6cd5\u83b7\u53d6\u5bf9\u89d2\u7ebf\u3002 \u5982\u4f55\u5728 Java \u4e2d\u83b7\u53d6\u4e8c\u7ef4\u6570\u7ec4\u5bf9\u89d2\u7ebf \u8981\u83b7\u53d6 Java \u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u5bf9\u89d2\u7ebf\uff0c\u6709\u4e24\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\uff1a \u65b9\u6cd5 1\uff1a\u4f7f\u7528\u5d4c\u5957\u5faa\u73af int[][] array = { {1, 2, 3}, {4, 5, 6}, {7, 8, 9} }; int[] diagonal = new int[array.length]; \/\/ \u83b7\u53d6\u4e3b\u5bf9\u89d2\u7ebf for (int i = 0; i &lt; array.length; i++) { diagonal[i] = array[i][i]; } \u767b\u5f55\u540e\u590d\u5236 [&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-35000","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35000","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=35000"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35000\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=35000"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=35000"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=35000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}