{"id":65625,"date":"2025-05-03T08:26:36","date_gmt":"2025-05-03T00:26:36","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65625\/"},"modified":"2025-05-03T08:26:36","modified_gmt":"2025-05-03T00:26:36","slug":"java%e9%87%8c%e9%9d%a2%e7%9a%84%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e6%8e%92%e5%ba%8f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65625\/","title":{"rendered":"java\u91cc\u9762\u7684\u6570\u7ec4\u600e\u4e48\u6392\u5e8f"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5bf9\u6570\u7ec4\u6392\u5e8f\u7684\u65b9\u6cd5\u6709\uff1a\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff1a\u4f7f\u7528 arrays.sort() \u8fdb\u884c\u81ea\u7136\u6392\u5e8f\u4f7f\u7528 comparator \u63a5\u53e3\u8fdb\u884c\u81ea\u5b9a\u4e49\u6392\u5e8f\u5bf9\u8c61\u6570\u7ec4\uff1a\u5b9e\u73b0 comparable \u63a5\u53e3\u5b9a\u4e49\u6bd4\u8f83\u884c\u4e3a\u4f7f\u7528 comparator \u63a5\u53e3\u8fdb\u884c\u81ea\u5b9a\u4e49\u6392\u5e8f\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111305511631867.jpg\" class=\"aligncenter\" title=\"java\u91cc\u9762\u7684\u6570\u7ec4\u600e\u4e48\u6392\u5e8f\u63d2\u56fe\" alt=\"java\u91cc\u9762\u7684\u6570\u7ec4\u600e\u4e48\u6392\u5e8f\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u6570\u7ec4\u6392\u5e8f<\/strong><\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong> \u5982\u4f55\u5728 Java \u4e2d\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff1f<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<p><strong>1. \u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u6392\u5e8f<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li> <strong>\u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\uff1a<\/strong>\u8fd9\u662f\u6700\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u5b83\u4f1a\u5bf9\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u81ea\u7136\u6392\u5e8f\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>int[] numbers = {10, 5, 3, 8, 2};\nArrays.sort(numbers); \/\/ \u8f93\u51fa\uff1a[2, 3, 5, 8, 10]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>\u4f7f\u7528 Comparator \u63a5\u53e3\uff1a<\/strong>\u5982\u679c\u60a8\u9700\u8981\u4f7f\u7528\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668\u8fdb\u884c\u6392\u5e8f\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528 Comparator \u63a5\u53e3\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>Arrays.sort(numbers, new Comparator&lt;Integer&gt;() {\n    @Override\n    public int compare(Integer o1, Integer o2) {\n        return o2 - o1; \/\/ \u964d\u5e8f\u6392\u5e8f\n    }\n}); \/\/ \u8f93\u51fa\uff1a[10, 8, 5, 3, 2]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u5bf9\u8c61\u6570\u7ec4\u6392\u5e8f<\/strong><\/p>\n<ul>\n<li> <strong>\u5b9e\u73b0 Comparable \u63a5\u53e3\uff1a<\/strong>\u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\uff0c\u60a8\u9700\u8981\u5b9e\u73b0 Comparable \u63a5\u53e3\u6765\u5b9a\u4e49\u6bd4\u8f83\u884c\u4e3a\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>class Person implements Comparable&lt;Person&gt; {\n    private String name;\n    private int age;\n\n    @Override\n    public int compareTo(Person other) {\n        return this.age - other.age; \/\/ \u6839\u636e\u5e74\u9f84\u5347\u5e8f\u6392\u5e8f\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>\u4f7f\u7528 Comparator \u63a5\u53e3\uff1a<\/strong>\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528 Comparator \u63a5\u53e3\u6765\u5bf9\u5bf9\u8c61\u6570\u7ec4\u8fdb\u884c\u81ea\u5b9a\u4e49\u6392\u5e8f\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>Arrays.sort(persons, new Comparator&lt;Person&gt;() {\n    @Override\n    public int compare(Person o1, Person o2) {\n        return o1.getName().compareTo(o2.getName()); \/\/ \u6839\u636e\u59d3\u540d\u5347\u5e8f\u6392\u5e8f\n    }\n});<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u91cc\u9762\u7684\u6570\u7ec4\u600e\u4e48\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>\u5728 java \u4e2d\u5bf9\u6570\u7ec4\u6392\u5e8f\u7684\u65b9\u6cd5\u6709\uff1a\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff1a\u4f7f\u7528 arrays.sort() \u8fdb\u884c\u81ea\u7136\u6392\u5e8f\u4f7f\u7528 comparator \u63a5\u53e3\u8fdb\u884c\u81ea\u5b9a\u4e49\u6392\u5e8f\u5bf9\u8c61\u6570\u7ec4\uff1a\u5b9e\u73b0 comparable \u63a5\u53e3\u5b9a\u4e49\u6bd4\u8f83\u884c\u4e3a\u4f7f\u7528 comparator \u63a5\u53e3\u8fdb\u884c\u81ea\u5b9a\u4e49\u6392\u5e8f Java \u4e2d\u6570\u7ec4\u6392\u5e8f \u95ee\u9898\uff1a \u5982\u4f55\u5728 Java \u4e2d\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff1f \u89e3\u51b3\u65b9\u6848\uff1a 1. \u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u6392\u5e8f \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\uff1a\u8fd9\u662f\u6700\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u5b83\u4f1a\u5bf9\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u81ea\u7136\u6392\u5e8f\u3002\u4f8b\u5982\uff1a int[] numbers = {10, 5, 3, 8, 2}; Arrays.sort(numbers); \/\/ \u8f93\u51fa\uff1a[2, 3, 5, 8, 10] \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 Comparator \u63a5\u53e3\uff1a\u5982\u679c\u60a8\u9700\u8981\u4f7f\u7528\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668\u8fdb\u884c\u6392\u5e8f\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528 Comparator \u63a5\u53e3\u3002\u4f8b\u5982\uff1a Arrays.sort(numbers, new Comparator&lt;Integer&gt;() { @Override public int compare(Integer o1, Integer [&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-65625","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65625","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=65625"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65625\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}