{"id":66991,"date":"2025-05-03T15:00:11","date_gmt":"2025-05-03T07:00:11","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66991\/"},"modified":"2025-05-03T15:00:11","modified_gmt":"2025-05-03T07:00:11","slug":"java%e6%80%8e%e4%b9%88%e5%a3%b0%e6%98%8e%e4%b8%80%e4%b8%aa%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66991\/","title":{"rendered":"java\u600e\u4e48\u58f0\u660e\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u58f0\u660e\u4e8c\u7ef4\u6570\u7ec4\u7684\u8bed\u6cd5\uff1aint[][] arrayname = new intnumrows\u3002\u8be5\u6570\u7ec4\u7531\u884c\u548c\u5217\u7ec4\u6210\uff0c\u4f7f\u7528\u4e24\u4e2a\u7d22\u5f15 arraynamerowindex \u8bbf\u95ee\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111722274630516.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u58f0\u660e\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u58f0\u660e\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u58f0\u660e\u4e00\u4e2a Java \u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><br \/>Java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u4e2a\u7531\u884c\u548c\u5217\u7ec4\u6210\u7684\u591a\u7ef4\u6570\u7ec4\u7ed3\u6784\u3002<\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>int[][] arrayName = new int[numRows][numCols];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>arrayName \u662f\u8981\u58f0\u660e\u7684\u6570\u7ec4\u7684\u540d\u79f0\u3002<\/li>\n<li>numRows \u662f\u6570\u7ec4\u7684\u884c\u6570\u3002<\/li>\n<li>numCols \u662f\u6570\u7ec4\u7684\u5217\u6570\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><br \/>\u4ee5\u4e0b\u793a\u4f8b\u58f0\u660e\u4e00\u4e2a\u540d\u4e3a my2DArray \u7684 3 \u884c 2 \u5217\u7684\u4e8c\u7ef4\u6574\u578b\u6570\u7ec4\uff1a<\/p>\n<pre>int[][] my2DArray = new int[3][2];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u7d22\u5f15\u4e8c\u7ef4\u6570\u7ec4<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528\u4e24\u4e2a\u7d22\u5f15\u6765\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a<\/p>\n<pre>arrayName[rowIndex][colIndex]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>rowIndex \u662f\u884c\u7684\u7d22\u5f15\uff08\u4ece 0 \u5f00\u59cb\uff09\u3002<\/li>\n<li>colIndex \u662f\u5217\u7684\u7d22\u5f15\uff08\u4ece 0 \u5f00\u59cb\uff09\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><br \/>\u4ee5\u4e0b\u4ee3\u7801\u83b7\u53d6 my2DArray \u4e2d\u7b2c\u4e00\u884c\u7b2c\u4e8c\u5217\u7684\u5143\u7d20\uff1a<\/p>\n<pre>int element = my2DArray[0][1];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u58f0\u660e\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\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>java \u4e2d\u58f0\u660e\u4e8c\u7ef4\u6570\u7ec4\u7684\u8bed\u6cd5\uff1aint[][] arrayname = new intnumrows\u3002\u8be5\u6570\u7ec4\u7531\u884c\u548c\u5217\u7ec4\u6210\uff0c\u4f7f\u7528\u4e24\u4e2a\u7d22\u5f15 arraynamerowindex \u8bbf\u95ee\u5143\u7d20\u3002 \u5982\u4f55\u58f0\u660e\u4e00\u4e2a Java \u4e8c\u7ef4\u6570\u7ec4 \u7b80\u4ecbJava \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u4e2a\u7531\u884c\u548c\u5217\u7ec4\u6210\u7684\u591a\u7ef4\u6570\u7ec4\u7ed3\u6784\u3002 \u8bed\u6cd5\uff1a int[][] arrayName = new int[numRows][numCols]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b arrayName \u662f\u8981\u58f0\u660e\u7684\u6570\u7ec4\u7684\u540d\u79f0\u3002 numRows \u662f\u6570\u7ec4\u7684\u884c\u6570\u3002 numCols \u662f\u6570\u7ec4\u7684\u5217\u6570\u3002 \u793a\u4f8b\uff1a\u4ee5\u4e0b\u793a\u4f8b\u58f0\u660e\u4e00\u4e2a\u540d\u4e3a my2DArray \u7684 3 \u884c 2 \u5217\u7684\u4e8c\u7ef4\u6574\u578b\u6570\u7ec4\uff1a int[][] my2DArray = new int[3][2]; \u767b\u5f55\u540e\u590d\u5236 \u7d22\u5f15\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u4f7f\u7528\u4e24\u4e2a\u7d22\u5f15\u6765\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a arrayName[rowIndex][colIndex] \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b rowIndex \u662f\u884c\u7684\u7d22\u5f15\uff08\u4ece 0 \u5f00\u59cb\uff09\u3002 colIndex \u662f\u5217\u7684\u7d22\u5f15\uff08\u4ece 0 \u5f00\u59cb\uff09\u3002 \u793a\u4f8b\uff1a\u4ee5\u4e0b\u4ee3\u7801\u83b7\u53d6 [&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-66991","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66991","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=66991"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66991\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}