{"id":66920,"date":"2025-05-03T10:28:46","date_gmt":"2025-05-03T02:28:46","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66920\/"},"modified":"2025-05-03T10:28:46","modified_gmt":"2025-05-03T02:28:46","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e7%bb%99%e4%b8%80%e4%b8%aa%e6%95%b0%e7%bb%84%e6%8e%92%e5%ba%8f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66920\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u7ed9\u4e00\u4e2a\u6570\u7ec4\u6392\u5e8f"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u6570\u7ec4\u6392\u5e8f\u65b9\u6cd5\u6709\u4e09\u79cd\uff1aarrays.sort()\u9002\u7528\u4e8e\u57fa\u672c\u7c7b\u578b\u548c\u5b9e\u73b0 comparable \u63a5\u53e3\u7684\u5bf9\u8c61\u7c7b\u578b\uff1bcomparator.comparing()\u9002\u7528\u4e8e\u4e0d\u5b9e\u73b0 comparable \u63a5\u53e3\u7684\u5bf9\u8c61\u7c7b\u578b\uff1bcollection.sort()\u9002\u7528\u4e8e\u901a\u8fc7 collections \u5de5\u5177\u7c7b\u5305\u88c5\u7684\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111719062122062.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u600e\u4e48\u7ed9\u4e00\u4e2a\u6570\u7ec4\u6392\u5e8f\u63d2\u56fe\" alt=\"java\u4e2d\u600e\u4e48\u7ed9\u4e00\u4e2a\u6570\u7ec4\u6392\u5e8f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u7ed9\u6570\u7ec4\u6392\u5e8f<\/strong><\/p>\n<p>Java \u4e2d\u63d0\u4f9b\u591a\u79cd\u65b9\u6cd5\u53ef\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u5177\u4f53\u65b9\u6cd5\u53d6\u51b3\u4e8e\u6570\u7ec4\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u4ee5\u53ca\u6240\u9700\u7684\u6392\u5e8f\u7b97\u6cd5\u3002<\/p>\n<p><strong>1. Arrays.sort()<\/strong><\/p>\n<ul>\n<li> <strong>\u9002\u7528\u6570\u636e\u7c7b\u578b\uff1a<\/strong>\u57fa\u672c\u7c7b\u578b\uff08int\u3001double\u3001char \u7b49\uff09\u548c\u5bf9\u8c61\u7c7b\u578b\uff08\u5b9e\u73b0 Comparable \u63a5\u53e3\uff09<\/li>\n<li> <strong>\u7b97\u6cd5\uff1a<\/strong>\u5feb\u901f\u6392\u5e8f\uff08\u9ed8\u8ba4\uff09\u6216\u5f52\u5e76\u6392\u5e8f\uff08\u5f53\u6570\u7ec4\u8fc7\u5927\u65f6\uff09<\/li>\n<li> <strong>\u8bed\u6cd5\uff1a<\/strong>Arrays.sort(array);<\/li>\n<\/ul>\n<p><strong>\u4f8b\u5982\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = {5, 2, 8, 3, 1};\nArrays.sort(numbers); \/\/ \u6392\u5e8f\u6570\u7ec4\nSystem.out.println(Arrays.toString(numbers)); \/\/ \u8f93\u51fa\uff1a[1, 2, 3, 5, 8]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. Comparator.comparing()<\/strong><\/p>\n<ul>\n<li> <strong>\u9002\u7528\u6570\u636e\u7c7b\u578b\uff1a<\/strong>\u5bf9\u8c61\u7c7b\u578b\uff08\u4e0d\u5b9e\u73b0 Comparable \u63a5\u53e3\uff09<\/li>\n<li> <strong>\u7b97\u6cd5\uff1a<\/strong>\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668<\/li>\n<li> <strong>\u8bed\u6cd5\uff1a<\/strong>Arrays.sort(array, Comparator.comparing(field));<\/li>\n<\/ul>\n<p><strong>\u4f8b\u5982\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>class Person {\n    private String name;\n    private int age;\n    \/\/ ...\n}\n\nPerson[] people = {\n    new Person(\"Bob\", 30),\n    new Person(\"Alice\", 25),\n    new Person(\"John\", 40)\n};\n\nArrays.sort(people, Comparator.comparing(Person::getName)); \/\/ \u6309\u59d3\u540d\u6392\u5e8f\nSystem.out.println(Arrays.toString(people)); \/\/ \u8f93\u51fa\uff1a[Alice, Bob, John]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. Collection.sort()<\/strong><\/p>\n<ul>\n<li> <strong>\u9002\u7528\u6570\u636e\u7c7b\u578b\uff1a<\/strong>\u901a\u8fc7 Collections \u5de5\u5177\u7c7b\u5305\u88c5\u7684\u6570\u7ec4<\/li>\n<li> <strong>\u7b97\u6cd5\uff1a<\/strong>\u81ea\u5b9a\u4e49 Comparator \u6216\u4f7f\u7528\u81ea\u7136\u6392\u5e8f\uff08\u5b9e\u73b0 Comparable \u63a5\u53e3\uff09<\/li>\n<li> <strong>\u8bed\u6cd5\uff1a<\/strong>Collections.sort(list);<\/li>\n<\/ul>\n<p><strong>\u4f8b\u5982\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>List&lt;Integer&gt; numbers = Arrays.asList(5, 2, 8, 3, 1);\nCollections.sort(numbers); \/\/ \u6392\u5e8f\u96c6\u5408\nSystem.out.println(numbers); \/\/ \u8f93\u51fa\uff1a[1, 2, 3, 5, 8]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u7ed9\u4e00\u4e2a\u6570\u7ec4\u6392\u5e8f\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\u6570\u7ec4\u6392\u5e8f\u65b9\u6cd5\u6709\u4e09\u79cd\uff1aarrays.sort()\u9002\u7528\u4e8e\u57fa\u672c\u7c7b\u578b\u548c\u5b9e\u73b0 comparable \u63a5\u53e3\u7684\u5bf9\u8c61\u7c7b\u578b\uff1bcomparator.comparing()\u9002\u7528\u4e8e\u4e0d\u5b9e\u73b0 comparable \u63a5\u53e3\u7684\u5bf9\u8c61\u7c7b\u578b\uff1bcollection.sort()\u9002\u7528\u4e8e\u901a\u8fc7 collections \u5de5\u5177\u7c7b\u5305\u88c5\u7684\u6570\u7ec4\u3002 \u5982\u4f55\u5728 Java \u4e2d\u7ed9\u6570\u7ec4\u6392\u5e8f Java \u4e2d\u63d0\u4f9b\u591a\u79cd\u65b9\u6cd5\u53ef\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u5177\u4f53\u65b9\u6cd5\u53d6\u51b3\u4e8e\u6570\u7ec4\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u4ee5\u53ca\u6240\u9700\u7684\u6392\u5e8f\u7b97\u6cd5\u3002 1. Arrays.sort() \u9002\u7528\u6570\u636e\u7c7b\u578b\uff1a\u57fa\u672c\u7c7b\u578b\uff08int\u3001double\u3001char \u7b49\uff09\u548c\u5bf9\u8c61\u7c7b\u578b\uff08\u5b9e\u73b0 Comparable \u63a5\u53e3\uff09 \u7b97\u6cd5\uff1a\u5feb\u901f\u6392\u5e8f\uff08\u9ed8\u8ba4\uff09\u6216\u5f52\u5e76\u6392\u5e8f\uff08\u5f53\u6570\u7ec4\u8fc7\u5927\u65f6\uff09 \u8bed\u6cd5\uff1aArrays.sort(array); \u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {5, 2, 8, 3, 1}; Arrays.sort(numbers); \/\/ \u6392\u5e8f\u6570\u7ec4 System.out.println(Arrays.toString(numbers)); \/\/ \u8f93\u51fa\uff1a[1, 2, 3, 5, 8] \u767b\u5f55\u540e\u590d\u5236 2. Comparator.comparing() \u9002\u7528\u6570\u636e\u7c7b\u578b\uff1a\u5bf9\u8c61\u7c7b\u578b\uff08\u4e0d\u5b9e\u73b0 Comparable \u63a5\u53e3\uff09 \u7b97\u6cd5\uff1a\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668 \u8bed\u6cd5\uff1aArrays.sort(array, Comparator.comparing(field)); \u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b class Person { [&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-66920","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66920","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=66920"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66920\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}