{"id":66950,"date":"2025-05-03T11:44:07","date_gmt":"2025-05-03T03:44:07","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66950\/"},"modified":"2025-05-03T11:44:07","modified_gmt":"2025-05-03T03:44:07","slug":"%e6%80%8e%e4%b9%88%e6%8e%92%e5%ba%8f%e4%b8%80%e4%b8%aa%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84java-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66950\/","title":{"rendered":"\u600e\u4e48\u6392\u5e8f\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4java"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5bf9\u4e8c\u7ef4\u6570\u7ec4\u6392\u5e8f\u7684\u65b9\u6cd5\u6709\u4e09\u79cd\uff1a\u6309\u884c\u6392\u5e8f\u3001\u4f7f\u7528\u6bd4\u8f83\u5668\u6392\u5e8f\u548c\u8f6c\u6362\u4e3a\u4e00\u7ef4\u6570\u7ec4\u6392\u5e8f\u3002\u6309\u884c\u6392\u5e8f\u7b80\u5355\u9ad8\u6548\uff0c\u4f46\u53ea\u80fd\u6392\u5e8f\u6bcf\u4e00\u884c\uff1b\u4f7f\u7528\u6bd4\u8f83\u5668\u6392\u5e8f\u53ef\u6839\u636e\u81ea\u5b9a\u4e49\u6807\u51c6\u5bf9\u6574\u4e2a\u6570\u7ec4\u6392\u5e8f\uff0c\u4f46\u66f4\u590d\u6742\uff1b\u8f6c\u6362\u4e3a\u4e00\u7ef4\u6570\u7ec4\u6392\u5e8f\u80fd\u6392\u5e8f\u6574\u4e2a\u6570\u7ec4\uff0c\u4f46\u9700\u8981\u989d\u5916\u7684\u5185\u5b58\u7a7a\u95f4\u8fdb\u884c\u8f6c\u6362\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111720183442943.jpg\" class=\"aligncenter\" title=\"\u600e\u4e48\u6392\u5e8f\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4java\u63d2\u56fe\" alt=\"\u600e\u4e48\u6392\u5e8f\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4java\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5728 Java \u4e2d\u5bf9\u4e8c\u7ef4\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u90fd\u662f\u4e00\u4e2a\u6570\u7ec4\u3002\u8981\u5bf9\u4e8c\u7ef4\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u5bf9\u6bcf\u884c\u6392\u5e8f<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\u5bf9\u6bcf\u4e00\u884c\u8fdb\u884c\u5355\u72ec\u6392\u5e8f\u3002<\/li>\n<li>\u4f18\u70b9\uff1a\u7b80\u5355\u4e14\u9ad8\u6548\u3002<\/li>\n<li>\u7f3a\u70b9\uff1a\u53ea\u80fd\u6392\u5e8f\u6bcf\u4e00\u884c\u7684\u5143\u7d20\uff0c\u65e0\u6cd5\u5bf9\u6574\u4e2a\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<\/ul>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[][] arr = { { 1, 3, 2 }, { 5, 4, 6 }, { 7, 8, 9 } };\n\nfor (int[] row : arr) {\n    Arrays.sort(row);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 Comparator<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528 java.util.Arrays.sort() \u65b9\u6cd5\uff0c\u63d0\u4f9b\u4e00\u4e2a\u6bd4\u8f83\u5668\u6765\u6bd4\u8f83\u6570\u7ec4\u4e2d\u7684\u6570\u7ec4\u3002<\/li>\n<li>\u6bd4\u8f83\u5668\u53ef\u4ee5\u6839\u636e\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3001\u548c\u6216\u4efb\u4f55\u5176\u4ed6\u81ea\u5b9a\u4e49\u6807\u51c6\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<li>\u4f18\u70b9\uff1a\u53ef\u5bf9\u6574\u4e2a\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u5e76\u6839\u636e\u81ea\u5b9a\u4e49\u6807\u51c6\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<li>\u7f3a\u70b9\uff1a\u6bd4\u5bf9\u6bcf\u884c\u6392\u5e8f\u66f4\u590d\u6742\u3002<\/li>\n<\/ul>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>import java.util.Arrays;\nimport java.util.Comparator;\n\nint[][] arr = { { 1, 3, 2 }, { 5, 4, 6 }, { 7, 8, 9 } };\n\nArrays.sort(arr, new Comparator&lt;int[]&gt;() {\n    @Override\n    public int compare(int[] a, int[] b) {\n        return a[0] - b[0];\n    }\n});<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u8f6c\u6362\u4e3a\u4e00\u7ef4\u6570\u7ec4<\/strong><\/p>\n<ul>\n<li>\u5c06\u4e8c\u7ef4\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u7ef4\u6570\u7ec4\u3002<\/li>\n<li>\u5bf9\u4e00\u7ef4\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<li>\u5c06\u6392\u5e8f\u540e\u7684\u5143\u7d20\u91cd\u65b0\u8f6c\u6362\u4e3a\u4e8c\u7ef4\u6570\u7ec4\u3002<\/li>\n<li>\u4f18\u70b9\uff1a\u53ef\u4ee5\u5bf9\u6574\u4e2a\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<li>\u7f3a\u70b9\uff1a\u9700\u8981\u989d\u5916\u7684\u5185\u5b58\u7a7a\u95f4\u8f6c\u6362\u6570\u7ec4\u3002<\/li>\n<\/ul>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] flatArr = new int[arr.length * arr[0].length];\nint k = 0;\n\nfor (int[] row : arr) {\n    for (int element : row) {\n        flatArr[k++] = element;\n    }\n}\n\nArrays.sort(flatArr);\n\n\/\/ \u91cd\u65b0\u8f6c\u6362\u4e3a\u4e8c\u7ef4\u6570\u7ec4\nint[][] sortedArr = new int[arr.length][arr[0].length];\nk = 0;\n\nfor (int[] row : sortedArr) {\n    for (int i = 0; i &lt; row.length; i++) {\n        row[i] = flatArr[k++];\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u6392\u5e8f\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4java\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>\u5728 java \u4e2d\u5bf9\u4e8c\u7ef4\u6570\u7ec4\u6392\u5e8f\u7684\u65b9\u6cd5\u6709\u4e09\u79cd\uff1a\u6309\u884c\u6392\u5e8f\u3001\u4f7f\u7528\u6bd4\u8f83\u5668\u6392\u5e8f\u548c\u8f6c\u6362\u4e3a\u4e00\u7ef4\u6570\u7ec4\u6392\u5e8f\u3002\u6309\u884c\u6392\u5e8f\u7b80\u5355\u9ad8\u6548\uff0c\u4f46\u53ea\u80fd\u6392\u5e8f\u6bcf\u4e00\u884c\uff1b\u4f7f\u7528\u6bd4\u8f83\u5668\u6392\u5e8f\u53ef\u6839\u636e\u81ea\u5b9a\u4e49\u6807\u51c6\u5bf9\u6574\u4e2a\u6570\u7ec4\u6392\u5e8f\uff0c\u4f46\u66f4\u590d\u6742\uff1b\u8f6c\u6362\u4e3a\u4e00\u7ef4\u6570\u7ec4\u6392\u5e8f\u80fd\u6392\u5e8f\u6574\u4e2a\u6570\u7ec4\uff0c\u4f46\u9700\u8981\u989d\u5916\u7684\u5185\u5b58\u7a7a\u95f4\u8fdb\u884c\u8f6c\u6362\u3002 \u5728 Java \u4e2d\u5bf9\u4e8c\u7ef4\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f \u5728 Java \u4e2d\uff0c\u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u90fd\u662f\u4e00\u4e2a\u6570\u7ec4\u3002\u8981\u5bf9\u4e8c\u7ef4\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a 1. \u5bf9\u6bcf\u884c\u6392\u5e8f \u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\u5bf9\u6bcf\u4e00\u884c\u8fdb\u884c\u5355\u72ec\u6392\u5e8f\u3002 \u4f18\u70b9\uff1a\u7b80\u5355\u4e14\u9ad8\u6548\u3002 \u7f3a\u70b9\uff1a\u53ea\u80fd\u6392\u5e8f\u6bcf\u4e00\u884c\u7684\u5143\u7d20\uff0c\u65e0\u6cd5\u5bf9\u6574\u4e2a\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002 \u4ee3\u7801\u793a\u4f8b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[][] arr = { { 1, 3, 2 }, { 5, 4, 6 }, { 7, 8, 9 } }; for (int[] row : arr) { Arrays.sort(row); } \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Comparator \u4f7f\u7528 java.util.Arrays.sort() \u65b9\u6cd5\uff0c\u63d0\u4f9b\u4e00\u4e2a\u6bd4\u8f83\u5668\u6765\u6bd4\u8f83\u6570\u7ec4\u4e2d\u7684\u6570\u7ec4\u3002 \u6bd4\u8f83\u5668\u53ef\u4ee5\u6839\u636e\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3001\u548c\u6216\u4efb\u4f55\u5176\u4ed6\u81ea\u5b9a\u4e49\u6807\u51c6\u8fdb\u884c\u6392\u5e8f\u3002 \u4f18\u70b9\uff1a\u53ef\u5bf9\u6574\u4e2a\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u5e76\u6839\u636e\u81ea\u5b9a\u4e49\u6807\u51c6\u8fdb\u884c\u6392\u5e8f\u3002 [&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-66950","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66950","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=66950"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66950\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66950"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66950"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66950"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}