{"id":39821,"date":"2024-11-26T13:30:24","date_gmt":"2024-11-26T05:30:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39821\/"},"modified":"2024-11-26T13:30:24","modified_gmt":"2024-11-26T05:30:24","slug":"java%e6%80%8e%e4%b9%88%e7%ae%97%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e9%95%bf%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39821\/","title":{"rendered":"java\u600e\u4e48\u7b97\u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6"},"content":{"rendered":"<blockquote><p>\n  \u5982\u4f55\u8ba1\u7b97 java \u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\uff1f\u884c\u957f\u5ea6\uff1aint rowcount = arrayname.length;\u5217\u957f\u5ea6\uff1aint columncount = arrayname[0].length;\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111710514398010.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u7b97\u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\u63d2\u56fe\" alt=\"java\u600e\u4e48\u7b97\u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u8ba1\u7b97 Java \u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6<\/strong><\/p>\n<p>\u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u5305\u542b\u4e86\u4e00\u4e2a\u5143\u7d20\u77e9\u9635\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7531\u4e24\u4e2a\u7d22\u5f15\u6807\u8bc6\uff0c\u4e00\u4e2a\u7528\u4e8e\u884c\uff0c\u53e6\u4e00\u4e2a\u7528\u4e8e\u5217\u3002\u8981\u8ba1\u7b97\u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u4f60\u9700\u8981\u8003\u8651\u5b83\u7684\u4e24\u4e2a\u7ef4\u5ea6\u3002<\/p>\n<p><strong>\u884c\u957f\u5ea6\uff1a<\/strong><\/p>\n<pre>int rowCount = arrayName.length;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>arrayName.length \u8fd4\u56de\u7684\u662f\u6570\u7ec4\u7684\u884c\u6570\uff0c\u5373\u7b2c\u4e00\u4e2a\u7ef4\u5ea6\u7684\u957f\u5ea6\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p><strong>\u5217\u957f\u5ea6\uff1a<\/strong><\/p>\n<pre>int columnCount = arrayName[0].length;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>arrayName[0].length \u8fd4\u56de\u7684\u662f\u6570\u7ec4\u7b2c\u4e00\u884c\u7684\u957f\u5ea6\uff0c\u8fd9\u4ee3\u8868\u7740\u6570\u7ec4\u7684\u6240\u6709\u884c\u7684\u5217\u6570\u3002\u56e0\u6b64\uff0c\u5b83\u53ef\u4ee5\u88ab\u7528\u4f5c\u5217\u957f\u5ea6\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>int[][] array = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};\n\nint rowCount = array.length; \/\/ 3\nint columnCount = array[0].length; \/\/ 3<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u7ed3\u679c\u4e3a\uff1a<\/p>\n<ul>\n<li>\u884c\u957f\u5ea6\uff1a3<\/li>\n<li>\u5217\u957f\u5ea6\uff1a3<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u7b97\u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\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>\u5982\u4f55\u8ba1\u7b97 java \u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\uff1f\u884c\u957f\u5ea6\uff1aint rowcount = arrayname.length;\u5217\u957f\u5ea6\uff1aint columncount = arrayname[0].length; \u5982\u4f55\u8ba1\u7b97 Java \u4e2d\u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6 \u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u5305\u542b\u4e86\u4e00\u4e2a\u5143\u7d20\u77e9\u9635\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7531\u4e24\u4e2a\u7d22\u5f15\u6807\u8bc6\uff0c\u4e00\u4e2a\u7528\u4e8e\u884c\uff0c\u53e6\u4e00\u4e2a\u7528\u4e8e\u5217\u3002\u8981\u8ba1\u7b97\u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u4f60\u9700\u8981\u8003\u8651\u5b83\u7684\u4e24\u4e2a\u7ef4\u5ea6\u3002 \u884c\u957f\u5ea6\uff1a int rowCount = arrayName.length; \u767b\u5f55\u540e\u590d\u5236 arrayName.length \u8fd4\u56de\u7684\u662f\u6570\u7ec4\u7684\u884c\u6570\uff0c\u5373\u7b2c\u4e00\u4e2a\u7ef4\u5ea6\u7684\u957f\u5ea6\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5217\u957f\u5ea6\uff1a int columnCount = arrayName[0].length; \u767b\u5f55\u540e\u590d\u5236 arrayName[0].length \u8fd4\u56de\u7684\u662f\u6570\u7ec4\u7b2c\u4e00\u884c\u7684\u957f\u5ea6\uff0c\u8fd9\u4ee3\u8868\u7740\u6570\u7ec4\u7684\u6240\u6709\u884c\u7684\u5217\u6570\u3002\u56e0\u6b64\uff0c\u5b83\u53ef\u4ee5\u88ab\u7528\u4f5c\u5217\u957f\u5ea6\u3002 \u793a\u4f8b\uff1a int[][] array = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}; int rowCount = array.length; \/\/ 3 int columnCount = array[0].length; \/\/ 3 [&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-39821","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39821","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=39821"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39821\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}