{"id":65785,"date":"2025-05-03T16:17:26","date_gmt":"2025-05-03T08:17:26","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65785\/"},"modified":"2025-05-03T16:17:26","modified_gmt":"2025-05-03T08:17:26","slug":"java%e6%8e%92%e5%ba%8f%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%86%99-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65785\/","title":{"rendered":"java\u6392\u5e8f\u6570\u7ec4\u600e\u4e48\u5199"},"content":{"rendered":"

\n java \u6570\u7ec4\u6392\u5e8f\u53ef\u4f7f\u7528 arrays.sort() \u65b9\u6cd5\uff0c\u6839\u636e\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a\u8c03\u7528 arrays.sort(arrayname) \u8fdb\u884c\u5347\u5e8f\u6392\u5e8f\u3002\u6307\u5b9a comparator \u5bf9\u8c61\u8fdb\u884c\u964d\u5e8f\u6216\u81ea\u5b9a\u4e49\u6392\u5e8f\u3002\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a o(n log n)\uff0c\u5176\u4e2d n \u4e3a\u6570\u7ec4\u957f\u5ea6\u3002\n<\/p><\/blockquote>\n

\"java\u6392\u5e8f\u6570\u7ec4\u600e\u4e48\u5199\u63d2\u56fe\"<\/p>\n

Java \u6570\u7ec4\u6392\u5e8f<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5185\u7f6e\u7684 Arrays.sort() \u65b9\u6cd5\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002\u8be5\u65b9\u6cd5\u5c06\u4ee5\u5347\u5e8f\u5bf9\u6570\u7ec4\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n

\u8bed\u6cd5\uff1a<\/strong><\/p>\n

Arrays.sort(arrayName);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u793a\u4f8b\uff1a<\/strong><\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
int[] numbers = {5, 2, 8, 3, 1};\nArrays.sort(numbers);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6267\u884c\u4e0a\u8ff0\u4ee3\u7801\u540e\uff0cnumbers \u6570\u7ec4\u5c06\u88ab\u6392\u5e8f\u4e3a\uff1a<\/p>\n
[1, 2, 3, 5, 8]<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4ed6\u6392\u5e8f\u9009\u9879\uff1a<\/strong><\/p>\n
\u9664\u4e86\u5185\u7f6e\u7684\u5347\u5e8f\u6392\u5e8f\u5916\uff0c\u901a\u8fc7\u6307\u5b9a Comparator \u5bf9\u8c61\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\u8fdb\u884c\u964d\u5e8f\u6392\u5e8f\u6216\u81ea\u5b9a\u4e49\u6392\u5e8f\u3002<\/p>\n
\u964d\u5e8f\u6392\u5e8f\uff1a<\/strong><\/p>\n
Arrays.sort(numbers, Collections.reverseOrder());<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u81ea\u5b9a\u4e49\u6392\u5e8f\uff1a<\/strong><\/p>\n
Arrays.sort(numbers, new Comparator<Integer>() {\n    @Override\n    public int compare(Integer o1, Integer o2) {\n        \/\/ \u81ea\u5b9a\u4e49\u6392\u5e8f\u903b\u8f91\n    }\n});<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u590d\u6742\u5ea6\uff1a<\/strong><\/p>\n
Arrays.sort() \u65b9\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(n log n)\uff0c\u5176\u4e2d n \u662f\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u4f7f\u7528 Collections.reverseOrder() \u4e0d\u4f1a\u5f71\u54cd\u65f6\u95f4\u590d\u6742\u5ea6\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u6392\u5e8f\u6570\u7ec4\u600e\u4e48\u5199\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
java \u6570\u7ec4\u6392\u5e8f\u53ef\u4f7f\u7528 arrays.sort() \u65b9\u6cd5\uff0c\u6839\u636e\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a\u8c03\u7528 arrays.sort(arrayname) \u8fdb\u884c\u5347\u5e8f\u6392\u5e8f\u3002\u6307\u5b9a comparator \u5bf9\u8c61\u8fdb\u884c\u964d\u5e8f\u6216\u81ea\u5b9a\u4e49\u6392\u5e8f\u3002\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a o(n log n)\uff0c\u5176\u4e2d n \u4e3a\u6570\u7ec4\u957f\u5ea6\u3002 Java \u6570\u7ec4\u6392\u5e8f \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5185\u7f6e\u7684 Arrays.sort() \u65b9\u6cd5\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002\u8be5\u65b9\u6cd5\u5c06\u4ee5\u5347\u5e8f\u5bf9\u6570\u7ec4\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002 \u8bed\u6cd5\uff1a Arrays.sort(arrayName); \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {5, 2, 8, 3, 1}; Arrays.sort(numbers); \u767b\u5f55\u540e\u590d\u5236 \u6267\u884c\u4e0a\u8ff0\u4ee3\u7801\u540e\uff0cnumbers \u6570\u7ec4\u5c06\u88ab\u6392\u5e8f\u4e3a\uff1a [1, 2, 3, 5, 8] \u767b\u5f55\u540e\u590d\u5236 \u5176\u4ed6\u6392\u5e8f\u9009\u9879\uff1a \u9664\u4e86\u5185\u7f6e\u7684\u5347\u5e8f\u6392\u5e8f\u5916\uff0c\u901a\u8fc7\u6307\u5b9a Comparator \u5bf9\u8c61\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\u8fdb\u884c\u964d\u5e8f\u6392\u5e8f\u6216\u81ea\u5b9a\u4e49\u6392\u5e8f\u3002 \u964d\u5e8f\u6392\u5e8f\uff1a Arrays.sort(numbers, Collections.reverseOrder()); \u767b\u5f55\u540e\u590d\u5236 \u81ea\u5b9a\u4e49\u6392\u5e8f\uff1a Arrays.sort(numbers, […]<\/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-65785","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65785","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=65785"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65785\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65785"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65785"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}