{"id":66218,"date":"2025-05-03T13:15:22","date_gmt":"2025-05-03T05:15:22","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66218\/"},"modified":"2025-05-03T13:15:22","modified_gmt":"2025-05-03T05:15:22","slug":"java%e8%87%aa%e5%b8%a6%e7%9a%84%e6%95%b0%e7%bb%84%e6%8e%92%e5%ba%8f%e6%96%b9%e6%b3%95%e6%80%8e%e4%b9%88%e7%94%a8-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66218\/","title":{"rendered":"java\u81ea\u5e26\u7684\u6570\u7ec4\u6392\u5e8f\u65b9\u6cd5\u600e\u4e48\u7528"},"content":{"rendered":"<blockquote><p>\n  java\u63d0\u4f9b\u4e86\u591a\u79cd\u6570\u7ec4\u6392\u5e8f\u65b9\u6cd5\uff1a\u4f7f\u7528arrays.sort()\u65b9\u6cd5\u8fdb\u884c\u81ea\u7136\u987a\u5e8f\u6392\u5e8f\u3002\u5bf9\u4e8e\u81ea\u5b9a\u4e49\u6392\u5e8f\uff0c\u4f7f\u7528comparator\u5bf9\u8c61\u63d0\u4f9b\u81ea\u5b9a\u4e49\u6bd4\u8f83\u7ed3\u679c\u3002arrays.sort()\u65b9\u6cd5\u63a5\u53d7comparator\u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\uff0c\u7528\u4e8e\u81ea\u5b9a\u4e49\u6392\u5e8f\u987a\u5e8f\u3002\u5176\u4ed6\u6392\u5e8f\u65b9\u6cd5\u5305\u62ecarrays.parallelsort()\u3001collections.sort()\u3001treemap\u548ctreeset\u96c6\u5408\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/15\/2024111504122042067.jpg\" class=\"aligncenter\" title=\"java\u81ea\u5e26\u7684\u6570\u7ec4\u6392\u5e8f\u65b9\u6cd5\u600e\u4e48\u7528\u63d2\u56fe\" alt=\"java\u81ea\u5e26\u7684\u6570\u7ec4\u6392\u5e8f\u65b9\u6cd5\u600e\u4e48\u7528\u63d2\u56fe\" \/><\/p>\n<p><strong>Java\u6570\u7ec4\u6392\u5e8f\u65b9\u6cd5<\/strong><\/p>\n<p>Java\u63d0\u4f9b\u4e86\u591a\u79cd\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u7684\u5185\u7f6e\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u5b83\u4eec\uff1a<\/p>\n<p><strong>\u4f7f\u7528Arrays.sort()\u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.sort()\u65b9\u6cd5\u662fJava\u4e2d\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u3002\u5b83\u63a5\u53d7\u4e00\u4e2a\u6570\u7ec4\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u6309\u7167\u81ea\u7136\u987a\u5e8f\u5bf9\u5176\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002\u81ea\u7136\u987a\u5e8f\u53d6\u51b3\u4e8e\u6570\u7ec4\u5143\u7d20\u7684\u7c7b\u578b\u3002\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff08\u4f8b\u5982int\u3001float\u3001char\u7b49\uff09\uff0c\u5b83\u6309\u7167\u4ece\u5c0f\u5230\u5927\u7684\u987a\u5e8f\u6392\u5e8f\u3002\u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\uff0c\u5b83\u6309\u7167\u5bf9\u8c61\u7684compareTo()\u65b9\u6cd5\u5b9a\u4e49\u7684\u987a\u5e8f\u6392\u5e8f\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>Arrays.sort(array);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f8b\u5982\uff1a<\/strong><\/p>\n<pre>\/\/ \u521b\u5efa\u4e00\u4e2a\u6574\u6570\u6570\u7ec4\nint[] numbers = {5, 2, 8, 3, 7};\n\n\/\/ \u4f7f\u7528Arrays.sort()\u65b9\u6cd5\u6392\u5e8f\u6570\u7ec4\nArrays.sort(numbers);\n\n\/\/ \u6253\u5370\u6392\u5e8f\u540e\u7684\u6570\u7ec4\nfor (int number : numbers) {\n    System.out.println(number);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528Comparator\u5bf9\u8c61<\/strong><\/p>\n<p>\u4e3a\u4e86\u81ea\u5b9a\u4e49\u6392\u5e8f\u987a\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528Comparator\u5bf9\u8c61\u3002Comparator\u5bf9\u8c61\u63d0\u4f9b\u4e86\u4e00\u4e2acompare()\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u8fd4\u56de\u4e24\u4e2a\u5143\u7d20\u4e4b\u95f4\u7684\u6bd4\u8f83\u7ed3\u679c\u3002<\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>Arrays.sort(array, comparator);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f8b\u5982\uff1a<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5bf9\u8c61\u6570\u7ec4\uff0c\u91cc\u9762\u5305\u542b\u5b66\u751f\u5bf9\u8c61\u3002\u6211\u4eec\u5e0c\u671b\u6309\u5b66\u751f\u7684\u5e74\u9f84\u8fdb\u884c\u6392\u5e8f\uff1a<\/p>\n<pre>\/\/ \u521b\u5efa\u4e00\u4e2a\u5b66\u751f\u5bf9\u8c61\u7c7b\npublic class Student {\n    private int age;\n\n    \/\/ ... \u5176\u4ed6\u5c5e\u6027\u548c\u65b9\u6cd5\n}\n\n\/\/ \u521b\u5efa\u4e00\u4e2a\u6bd4\u8f83\u5668\uff0c\u6309\u5e74\u9f84\u5bf9\u5b66\u751f\u8fdb\u884c\u6392\u5e8f\nComparator&lt;Student&gt; ageComparator = new Comparator&lt;Student&gt;() {\n    @Override\n    public int compare(Student s1, Student s2) {\n        return s1.getAge() - s2.getAge();\n    }\n};\n\n\/\/ \u521b\u5efa\u4e00\u4e2a\u5b66\u751f\u5bf9\u8c61\u6570\u7ec4\nStudent[] students = {\n    new Student(25),\n    new Student(19),\n    new Student(33),\n    new Student(21)\n};\n\n\/\/ \u4f7f\u7528Arrays.sort()\u65b9\u6cd5\u548c\u6bd4\u8f83\u5668\u6392\u5e8f\u6570\u7ec4\nArrays.sort(students, ageComparator);\n\n\/\/ \u6253\u5370\u6392\u5e8f\u540e\u7684\u6570\u7ec4\nfor (Student student : students) {\n    System.out.println(student.getAge());\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u5176\u4ed6\u6392\u5e8f\u65b9\u6cd5<\/strong><\/p>\n<p>\u9664\u4e86Arrays.sort()\u65b9\u6cd5\u5916\uff0cJava\u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u4e00\u4e9b\u6392\u5e8f\u65b9\u6cd5\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>Arrays.parallelSort()\uff1a\u8fdb\u884c\u5e76\u884c\u6392\u5e8f\uff0c\u9002\u7528\u4e8e\u5927\u6570\u7ec4\u3002<\/li>\n<li>Collections.sort()\uff1a\u9002\u7528\u4e8eCollection\u96c6\u5408\uff0c\u4f8b\u5982ArrayList\u548cLinkedList\u3002<\/li>\n<li>TreeMap\u548cTreeSet\u96c6\u5408\uff1a\u5b83\u4eec\u6839\u636e\u5143\u7d20\u7684\u81ea\u7136\u987a\u5e8f\u6216\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668\u5bf9\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u81ea\u5e26\u7684\u6570\u7ec4\u6392\u5e8f\u65b9\u6cd5\u600e\u4e48\u7528\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\u63d0\u4f9b\u4e86\u591a\u79cd\u6570\u7ec4\u6392\u5e8f\u65b9\u6cd5\uff1a\u4f7f\u7528arrays.sort()\u65b9\u6cd5\u8fdb\u884c\u81ea\u7136\u987a\u5e8f\u6392\u5e8f\u3002\u5bf9\u4e8e\u81ea\u5b9a\u4e49\u6392\u5e8f\uff0c\u4f7f\u7528comparator\u5bf9\u8c61\u63d0\u4f9b\u81ea\u5b9a\u4e49\u6bd4\u8f83\u7ed3\u679c\u3002arrays.sort()\u65b9\u6cd5\u63a5\u53d7comparator\u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\uff0c\u7528\u4e8e\u81ea\u5b9a\u4e49\u6392\u5e8f\u987a\u5e8f\u3002\u5176\u4ed6\u6392\u5e8f\u65b9\u6cd5\u5305\u62ecarrays.parallelsort()\u3001collections.sort()\u3001treemap\u548ctreeset\u96c6\u5408\u3002 Java\u6570\u7ec4\u6392\u5e8f\u65b9\u6cd5 Java\u63d0\u4f9b\u4e86\u591a\u79cd\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u7684\u5185\u7f6e\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u5b83\u4eec\uff1a \u4f7f\u7528Arrays.sort()\u65b9\u6cd5 Arrays.sort()\u65b9\u6cd5\u662fJava\u4e2d\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u3002\u5b83\u63a5\u53d7\u4e00\u4e2a\u6570\u7ec4\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u6309\u7167\u81ea\u7136\u987a\u5e8f\u5bf9\u5176\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002\u81ea\u7136\u987a\u5e8f\u53d6\u51b3\u4e8e\u6570\u7ec4\u5143\u7d20\u7684\u7c7b\u578b\u3002\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff08\u4f8b\u5982int\u3001float\u3001char\u7b49\uff09\uff0c\u5b83\u6309\u7167\u4ece\u5c0f\u5230\u5927\u7684\u987a\u5e8f\u6392\u5e8f\u3002\u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\uff0c\u5b83\u6309\u7167\u5bf9\u8c61\u7684compareTo()\u65b9\u6cd5\u5b9a\u4e49\u7684\u987a\u5e8f\u6392\u5e8f\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u8bed\u6cd5\uff1a Arrays.sort(array); \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff1a \/\/ \u521b\u5efa\u4e00\u4e2a\u6574\u6570\u6570\u7ec4 int[] numbers = {5, 2, 8, 3, 7}; \/\/ \u4f7f\u7528Arrays.sort()\u65b9\u6cd5\u6392\u5e8f\u6570\u7ec4 Arrays.sort(numbers); \/\/ \u6253\u5370\u6392\u5e8f\u540e\u7684\u6570\u7ec4 for (int number : numbers) { System.out.println(number); } \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528Comparator\u5bf9\u8c61 \u4e3a\u4e86\u81ea\u5b9a\u4e49\u6392\u5e8f\u987a\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528Comparator\u5bf9\u8c61\u3002Comparator\u5bf9\u8c61\u63d0\u4f9b\u4e86\u4e00\u4e2acompare()\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u8fd4\u56de\u4e24\u4e2a\u5143\u7d20\u4e4b\u95f4\u7684\u6bd4\u8f83\u7ed3\u679c\u3002 \u8bed\u6cd5\uff1a Arrays.sort(array, comparator); \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff1a \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5bf9\u8c61\u6570\u7ec4\uff0c\u91cc\u9762\u5305\u542b\u5b66\u751f\u5bf9\u8c61\u3002\u6211\u4eec\u5e0c\u671b\u6309\u5b66\u751f\u7684\u5e74\u9f84\u8fdb\u884c\u6392\u5e8f\uff1a \/\/ \u521b\u5efa\u4e00\u4e2a\u5b66\u751f\u5bf9\u8c61\u7c7b public class Student { private int age; \/\/ &#8230; \u5176\u4ed6\u5c5e\u6027\u548c\u65b9\u6cd5 } [&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-66218","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66218","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=66218"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66218\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}