{"id":66792,"date":"2025-05-03T12:45:58","date_gmt":"2025-05-03T04:45:58","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66792\/"},"modified":"2025-05-03T12:45:58","modified_gmt":"2025-05-03T04:45:58","slug":"java%e4%b8%ad%e5%9c%a8%e6%95%b0%e7%bb%84%e4%b8%ad%e6%80%8e%e4%b9%88%e6%b1%82%e4%b8%ad%e4%bd%8d%e6%95%b0-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66792\/","title":{"rendered":"java\u4e2d\u5728\u6570\u7ec4\u4e2d\u600e\u4e48\u6c42\u4e2d\u4f4d\u6570"},"content":{"rendered":"

\n java \u4e2d\u6c42\u4e2d\u4f4d\u6570\u7684\u6b65\u9aa4\uff1a\u6392\u5e8f\u6570\u7ec4\u8ba1\u7b97\u6570\u7ec4\u957f\u5ea6\u6839\u636e\u6570\u7ec4\u957f\u5ea6\u5947\u5076\u6027\uff0c\u786e\u5b9a\u4e2d\u4f4d\u6570\u7684\u8ba1\u7b97\u65b9\u6cd5\n<\/p><\/blockquote>\n

\"java\u4e2d\u5728\u6570\u7ec4\u4e2d\u600e\u4e48\u6c42\u4e2d\u4f4d\u6570\u63d2\u56fe\"<\/p>\n

Java \u4e2d\u5728\u6570\u7ec4\u4e2d\u6c42\u4e2d\u4f4d\u6570<\/strong><\/p>\n

\u4e2d\u4f4d\u6570\u662f\u4e00\u4e2a\u6570\u636e\u96c6\u4e2d\u7684\u4e2d\u95f4\u503c\u3002\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u8ba1\u7b97\u6570\u7ec4\u7684\u4e2d\u4f4d\u6570\uff1a<\/p>\n

1. \u6392\u5e8f\u6570\u7ec4<\/strong><\/p>\n

\u9996\u5148\uff0c\u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002\u6392\u5e8f\u540e\u7684\u6570\u7ec4\u4e2d\uff0c\u5143\u7d20\u5c06\u6309\u4ece\u5c0f\u5230\u5927\u7684\u987a\u5e8f\u3002<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

2. \u8ba1\u7b97\u6570\u7ec4\u957f\u5ea6<\/strong><\/p>\n

\u7136\u540e\uff0c\u8ba1\u7b97\u6570\u7ec4\u7684\u957f\u5ea6 n\u3002<\/p>\n

3. \u6c42\u4e2d\u4f4d\u6570<\/strong><\/p>\n

\u5982\u679c n \u662f\u5947\u6570\uff0c\u5219\u4e2d\u4f4d\u6570\u4e3a\u6392\u5e8f\u540e\u6570\u7ec4\u4e2d\u4f4d\u4e8e (n + 1) \/ 2 \u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002<\/p>\n

\u5982\u679c n \u662f\u5076\u6570\uff0c\u5219\u4e2d\u4f4d\u6570\u662f\u6392\u5e8f\u540e\u6570\u7ec4\u4e2d\u4f4d\u4e8e n \/ 2 \u548c n \/ 2 + 1 \u7d22\u5f15\u5904\u7684\u4e24\u4e2a\u5143\u7d20\u7684\u5e73\u5747\u503c\u3002<\/p>\n

\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n

import java.util.Arrays;\n\npublic class MedianOfArray {\n\n    public static void main(String[] args) {\n        int[] arr = {4, 2, 9, 1, 3};\n\n        \/\/ \u6392\u5e8f\u6570\u7ec4\n        Arrays.sort(arr);\n\n        \/\/ \u8ba1\u7b97\u6570\u7ec4\u957f\u5ea6\n        int n = arr.length;\n\n        \/\/ \u8ba1\u7b97\u4e2d\u4f4d\u6570\n        double median;\n        if (n % 2 == 0) {\n            median = (arr[n \/ 2] + arr[n \/ 2 - 1]) \/ 2.0;\n        } else {\n            median = arr[(n + 1) \/ 2 - 1];\n        }\n\n        \/\/ \u8f93\u51fa\u4e2d\u4f4d\u6570\n        System.out.println(\"\u4e2d\u4f4d\u6570\uff1a\" + median);\n    }\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u5728\u6570\u7ec4\u4e2d\u600e\u4e48\u6c42\u4e2d\u4f4d\u6570\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 \u4e2d\u6c42\u4e2d\u4f4d\u6570\u7684\u6b65\u9aa4\uff1a\u6392\u5e8f\u6570\u7ec4\u8ba1\u7b97\u6570\u7ec4\u957f\u5ea6\u6839\u636e\u6570\u7ec4\u957f\u5ea6\u5947\u5076\u6027\uff0c\u786e\u5b9a\u4e2d\u4f4d\u6570\u7684\u8ba1\u7b97\u65b9\u6cd5 Java \u4e2d\u5728\u6570\u7ec4\u4e2d\u6c42\u4e2d\u4f4d\u6570 \u4e2d\u4f4d\u6570\u662f\u4e00\u4e2a\u6570\u636e\u96c6\u4e2d\u7684\u4e2d\u95f4\u503c\u3002\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u8ba1\u7b97\u6570\u7ec4\u7684\u4e2d\u4f4d\u6570\uff1a 1. \u6392\u5e8f\u6570\u7ec4 \u9996\u5148\uff0c\u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002\u6392\u5e8f\u540e\u7684\u6570\u7ec4\u4e2d\uff0c\u5143\u7d20\u5c06\u6309\u4ece\u5c0f\u5230\u5927\u7684\u987a\u5e8f\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b 2. \u8ba1\u7b97\u6570\u7ec4\u957f\u5ea6 \u7136\u540e\uff0c\u8ba1\u7b97\u6570\u7ec4\u7684\u957f\u5ea6 n\u3002 3. \u6c42\u4e2d\u4f4d\u6570 \u5982\u679c n \u662f\u5947\u6570\uff0c\u5219\u4e2d\u4f4d\u6570\u4e3a\u6392\u5e8f\u540e\u6570\u7ec4\u4e2d\u4f4d\u4e8e (n + 1) \/ 2 \u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002 \u5982\u679c n \u662f\u5076\u6570\uff0c\u5219\u4e2d\u4f4d\u6570\u662f\u6392\u5e8f\u540e\u6570\u7ec4\u4e2d\u4f4d\u4e8e n \/ 2 \u548c n \/ 2 + 1 \u7d22\u5f15\u5904\u7684\u4e24\u4e2a\u5143\u7d20\u7684\u5e73\u5747\u503c\u3002 \u793a\u4f8b\u4ee3\u7801\uff1a import java.util.Arrays; public class MedianOfArray { public static void main(String[] args) { int[] […]<\/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-66792","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66792","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=66792"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66792\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66792"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66792"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66792"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}