{"id":66172,"date":"2025-05-03T08:42:50","date_gmt":"2025-05-03T00:42:50","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66172\/"},"modified":"2025-05-03T08:42:50","modified_gmt":"2025-05-03T00:42:50","slug":"java%e5%ae%9a%e4%b9%89%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e7%94%a8-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66172\/","title":{"rendered":"java\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u7528"},"content":{"rendered":"<blockquote><p>\n  \u4e8c\u7ef4\u6570\u7ec4\u662f\u5728 java \u4e2d\u5b58\u50a8\u77e9\u5f62\u6570\u636e\u96c6\u5408\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b9a\u4e49\u65f6\u6307\u5b9a\u884c\u6570\u548c\u5217\u6570\u3002\u901a\u8fc7\u53cc\u91cd\u7d22\u5f15\u8bbf\u95ee\u5143\u7d20\uff0c\u53ef\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u521d\u59cb\u5316\u6216\u4f7f\u7528\u5927\u62ec\u53f7\u6307\u5b9a\u5143\u7d20\u503c\u3002\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u904d\u5386\u6240\u6709\u5143\u7d20\uff0c\u5e38\u89c1\u64cd\u4f5c\u5305\u62ec\u83b7\u53d6\u884c\u6570\u548c\u5217\u6570\u3001\u590d\u5236\u6570\u7ec4\u548c\u6392\u5e8f\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/15\/2024111503002521598.jpg\" class=\"aligncenter\" title=\"java\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u7528\u63d2\u56fe\" alt=\"java\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u7528\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5b9a\u4e49\u548c\u4f7f\u7528\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p><strong>\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u4e2a\u77e9\u5f62\u6570\u636e\u7ed3\u6784\uff0c\u5b58\u50a8\u4e00\u4e2a\u5177\u6709\u6307\u5b9a\u884c\u6570\u548c\u5217\u6570\u7684\u5143\u7d20\u96c6\u5408\u3002\u8981\u5b9a\u4e49\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\uff0c\u9700\u8981\u6307\u5b9a\u5176\u7c7b\u578b\u3001\u884c\u6570\u548c\u5217\u6570\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>int[][] myArray = new int[3][4];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u5177\u6709 3 \u884c 4 \u5217\u7684\u6574\u6570\u4e8c\u7ef4\u6570\u7ec4\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p><strong>\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n<p>\u8981\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u9700\u8981\u4f7f\u7528\u4e24\u4e2a\u7d22\u5f15\uff1a\u4e00\u4e2a\u7528\u4e8e\u884c\u53f7\uff0c\u53e6\u4e00\u4e2a\u7528\u4e8e\u5217\u53f7\u3002\u4f8b\u5982\uff0c\u8981\u8bbf\u95ee\u7b2c\u4e00\u884c\u7b2c\u4e00\u5217\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>myArray[0][0];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u521d\u59cb\u5316\u6570\u7ec4<\/strong><\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u624b\u52a8\u521d\u59cb\u5316\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>for (int i = 0; i &lt; 3; i++) {\n  for (int j = 0; j &lt; 4; j++) {\n    myArray[i][j] = i * j;\n  }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e5f\u53ef\u4ee5\u5728\u521b\u5efa\u6570\u7ec4\u65f6\u4f7f\u7528\u5927\u62ec\u53f7\u6307\u5b9a\u5143\u7d20\u503c\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/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>\u904d\u5386\u6570\u7ec4<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>for (int i = 0; i &lt; 3; i++) {\n  for (int j = 0; j &lt; 4; j++) {\n    System.out.println(myArray[i][j]);\n  }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u5e38\u89c1\u64cd\u4f5c<\/strong><\/p>\n<p>\u9664\u4e86\u8bbf\u95ee\u548c\u904d\u5386\u5143\u7d20\u5916\uff0c\u8fd8\u53ef\u4ee5\u5bf9\u4e8c\u7ef4\u6570\u7ec4\u6267\u884c\u4ee5\u4e0b\u5e38\u89c1\u64cd\u4f5c\uff1a<\/p>\n<ul>\n<li>\u83b7\u53d6\u884c\u6570\u548c\u5217\u6570\uff1amyArray.length\uff08\u884c\u6570\uff09\u548c myArray[0].length\uff08\u5217\u6570\uff09<\/li>\n<li>\u590d\u5236\u6570\u7ec4\uff1a\u4f7f\u7528 Arrays.copyOf() \u590d\u5236\u6570\u7ec4\u7684\u5f15\u7528<\/li>\n<li>\u6392\u5e8f\u6570\u7ec4\uff1a\u4f7f\u7528 Arrays.sort() \u5bf9\u884c\u6216\u5217\u6392\u5e8f<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u7528\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>\u4e8c\u7ef4\u6570\u7ec4\u662f\u5728 java \u4e2d\u5b58\u50a8\u77e9\u5f62\u6570\u636e\u96c6\u5408\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b9a\u4e49\u65f6\u6307\u5b9a\u884c\u6570\u548c\u5217\u6570\u3002\u901a\u8fc7\u53cc\u91cd\u7d22\u5f15\u8bbf\u95ee\u5143\u7d20\uff0c\u53ef\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u521d\u59cb\u5316\u6216\u4f7f\u7528\u5927\u62ec\u53f7\u6307\u5b9a\u5143\u7d20\u503c\u3002\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u904d\u5386\u6240\u6709\u5143\u7d20\uff0c\u5e38\u89c1\u64cd\u4f5c\u5305\u62ec\u83b7\u53d6\u884c\u6570\u548c\u5217\u6570\u3001\u590d\u5236\u6570\u7ec4\u548c\u6392\u5e8f\u6570\u7ec4\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5b9a\u4e49\u548c\u4f7f\u7528\u4e8c\u7ef4\u6570\u7ec4 \u5b9a\u4e49\u4e8c\u7ef4\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u4e2a\u77e9\u5f62\u6570\u636e\u7ed3\u6784\uff0c\u5b58\u50a8\u4e00\u4e2a\u5177\u6709\u6307\u5b9a\u884c\u6570\u548c\u5217\u6570\u7684\u5143\u7d20\u96c6\u5408\u3002\u8981\u5b9a\u4e49\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\uff0c\u9700\u8981\u6307\u5b9a\u5176\u7c7b\u578b\u3001\u884c\u6570\u548c\u5217\u6570\uff0c\u5982\u4e0b\u6240\u793a\uff1a int[][] myArray = new int[3][4]; \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u5177\u6709 3 \u884c 4 \u5217\u7684\u6574\u6570\u4e8c\u7ef4\u6570\u7ec4\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20 \u8981\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u9700\u8981\u4f7f\u7528\u4e24\u4e2a\u7d22\u5f15\uff1a\u4e00\u4e2a\u7528\u4e8e\u884c\u53f7\uff0c\u53e6\u4e00\u4e2a\u7528\u4e8e\u5217\u53f7\u3002\u4f8b\u5982\uff0c\u8981\u8bbf\u95ee\u7b2c\u4e00\u884c\u7b2c\u4e00\u5217\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a myArray[0][0]; \u767b\u5f55\u540e\u590d\u5236 \u521d\u59cb\u5316\u6570\u7ec4 \u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u624b\u52a8\u521d\u59cb\u5316\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u5982\u4e0b\u6240\u793a\uff1a for (int i = 0; i &lt; 3; i++) { for (int j = 0; j &lt; 4; j++) { myArray[i][j] = i * j; } } [&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-66172","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66172","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=66172"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66172\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}