{"id":64529,"date":"2025-05-03T15:20:12","date_gmt":"2025-05-03T07:20:12","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64529\/"},"modified":"2025-05-03T15:20:12","modified_gmt":"2025-05-03T07:20:12","slug":"java%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e8%b0%83%e6%8d%a2%e4%bd%8d%e7%bd%ae-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64529\/","title":{"rendered":"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u8c03\u6362\u4f4d\u7f6e"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u8c03\u6362\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u5143\u7d20\u4f4d\u7f6e\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a\u4f7f\u7528 for \u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528\u4e34\u65f6\u53d8\u91cf\u4ea4\u6362\u5143\u7d20\u7684\u4f4d\u7f6e\u3002\u4f7f\u7528 collections.swap \u65b9\u6cd5\uff0c\u9002\u7528\u4e8e\u57fa\u4e8e\u5217\u8868\u7684\u4e8c\u7ef4\u6570\u7ec4\uff08list\uff09\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110323422486468.jpg\" class=\"aligncenter\" title=\"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u8c03\u6362\u4f4d\u7f6e\u63d2\u56fe\" alt=\"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u8c03\u6362\u4f4d\u7f6e\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u8c03\u6362 Java \u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u4f4d\u7f6e<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u8c03\u6362\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4f4d\u7f6e\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u4f7f\u7528 for \u5faa\u73af<\/strong><\/p>\n<p>\u4f7f\u7528 for \u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528\u4e34\u65f6\u53d8\u91cf\u4ea4\u6362\u5143\u7d20\u7684\u4f4d\u7f6e\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[][] arr = {{1, 2, 3}, {4, 5, 6}};\n\n\/\/ \u4ea4\u6362 (0, 0) \u548c (1, 1) \u5143\u7d20\nint temp = arr[0][0];\narr[0][0] = arr[1][1];\narr[1][1] = temp;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528 Collections.swap \u65b9\u6cd5<\/strong><\/p>\n<p>Java Collections \u6846\u67b6\u63d0\u4f9b\u4e86 Collections.swap \u65b9\u6cd5\u6765\u4ea4\u6362\u4e24\u4e2a\u5143\u7d20\u7684\u4f4d\u7f6e\u3002<\/p>\n<pre>List&lt;List&lt;Integer&gt;&gt; list = Arrays.asList(Arrays.asList(1, 2, 3), Arrays.asList(4, 5, 6));\n\n\/\/ \u4ea4\u6362 (0, 0) \u548c (1, 1) \u5143\u7d20\nCollections.swap(list.get(0), 0, 1);\nCollections.swap(list.get(1), 0, 1);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6ce8\u610f\uff1aCollections.swap \u65b9\u6cd5\u9002\u7528\u4e8e\u57fa\u4e8e\u5217\u8868\u7684\u4e8c\u7ef4\u6570\u7ec4\uff08List \uff09\u3002 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u8c03\u6362\u4f4d\u7f6e\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\u8c03\u6362\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u5143\u7d20\u4f4d\u7f6e\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a\u4f7f\u7528 for \u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528\u4e34\u65f6\u53d8\u91cf\u4ea4\u6362\u5143\u7d20\u7684\u4f4d\u7f6e\u3002\u4f7f\u7528 collections.swap \u65b9\u6cd5\uff0c\u9002\u7528\u4e8e\u57fa\u4e8e\u5217\u8868\u7684\u4e8c\u7ef4\u6570\u7ec4\uff08list\uff09\u3002 \u5982\u4f55\u8c03\u6362 Java \u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u4f4d\u7f6e \u5728 Java \u4e2d\uff0c\u8c03\u6362\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4f4d\u7f6e\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a \u65b9\u6cd5 1\uff1a\u4f7f\u7528 for \u5faa\u73af \u4f7f\u7528 for \u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528\u4e34\u65f6\u53d8\u91cf\u4ea4\u6362\u5143\u7d20\u7684\u4f4d\u7f6e\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[][] arr = {{1, 2, 3}, {4, 5, 6}}; \/\/ \u4ea4\u6362 (0, 0) \u548c (1, 1) \u5143\u7d20 int temp = arr[0][0]; arr[0][0] = arr[1][1]; arr[1][1] = temp; \u767b\u5f55\u540e\u590d\u5236 \u65b9\u6cd5 2\uff1a\u4f7f\u7528 Collections.swap \u65b9\u6cd5 Java Collections \u6846\u67b6\u63d0\u4f9b\u4e86 [&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-64529","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64529","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=64529"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64529\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64529"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64529"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64529"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}