{"id":64603,"date":"2025-05-03T11:19:59","date_gmt":"2025-05-03T03:19:59","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64603\/"},"modified":"2025-05-03T11:19:59","modified_gmt":"2025-05-03T03:19:59","slug":"java%e4%b8%ad%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e7%9a%84%e6%80%8e%e4%b9%88%e8%b5%8b%e5%80%bc-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64603\/","title":{"rendered":"java\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u600e\u4e48\u8d4b\u503c"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u4e3a\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u9010\u4e00\u8d4b\u503c\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u4f7f\u7528 stream\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/04\/2024110403093442165.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u600e\u4e48\u8d4b\u503c\u63d2\u56fe\" alt=\"java\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u600e\u4e48\u8d4b\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u4e3a\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c<\/strong><\/p>\n<p>\u4e8c\u7ef4\u6570\u7ec4\u662f\u5b58\u50a8\u5728\u7f51\u683c\u4e2d\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u4e24\u4e2a\u7d22\u5f15\u503c\uff1a\u884c\u7d22\u5f15\u548c\u5217\u7d22\u5f15\u3002\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4e3a\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c\uff1a<\/p>\n<p><strong>\u9010\u4e00\u8d4b\u503c<\/strong><\/p>\n<pre>int[][] myArray = new int[3][4];\n\nmyArray[0][0] = 1;\nmyArray[0][1] = 2;\nmyArray[0][2] = 3;\nmyArray[0][3] = 4;\n\nmyArray[1][0] = 5;\nmyArray[1][1] = 6;\nmyArray[1][2] = 7;\nmyArray[1][3] = 8;\n\nmyArray[2][0] = 9;\nmyArray[2][1] = 10;\nmyArray[2][2] = 11;\nmyArray[2][3] = 12;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u5d4c\u5957\u5faa\u73af<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[][] myArray = new int[3][4];\n\nfor (int i = 0; i &lt; myArray.length; i++) {\n    for (int j = 0; j &lt; myArray[i].length; j++) {\n        myArray[i][j] = i * 4 + j + 1;\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316<\/strong><\/p>\n<pre>int[][] myArray = {\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>\u4f7f\u7528 Stream<\/strong><\/p>\n<pre>int[][] myArray = new int[3][4];\n\nIntStream.range(0, myArray.length)\n        .forEach(i -&gt; IntStream.range(0, myArray[i].length)\n                .forEach(j -&gt; myArray[i][j] = i * 4 + j + 1));<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u600e\u4e48\u8d4b\u503c\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\u4e3a\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u9010\u4e00\u8d4b\u503c\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u4f7f\u7528 stream \u5982\u4f55\u5728 Java \u4e2d\u4e3a\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c \u4e8c\u7ef4\u6570\u7ec4\u662f\u5b58\u50a8\u5728\u7f51\u683c\u4e2d\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u4e24\u4e2a\u7d22\u5f15\u503c\uff1a\u884c\u7d22\u5f15\u548c\u5217\u7d22\u5f15\u3002\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4e3a\u4e8c\u7ef4\u6570\u7ec4\u8d4b\u503c\uff1a \u9010\u4e00\u8d4b\u503c int[][] myArray = new int[3][4]; myArray[0][0] = 1; myArray[0][1] = 2; myArray[0][2] = 3; myArray[0][3] = 4; myArray[1][0] = 5; myArray[1][1] = 6; myArray[1][2] = 7; myArray[1][3] = 8; myArray[2][0] = 9; myArray[2][1] = 10; myArray[2][2] = 11; myArray[2][3] = 12; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u5d4c\u5957\u5faa\u73af \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b [&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-64603","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64603","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=64603"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64603\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}