{"id":34958,"date":"2024-11-26T08:47:14","date_gmt":"2024-11-26T00:47:14","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34958\/"},"modified":"2024-11-26T08:47:14","modified_gmt":"2024-11-26T00:47:14","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e4%b8%80%e4%b8%aa%e6%95%b0%e7%bb%84%e6%8e%92%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34958\/","title":{"rendered":"java\u600e\u4e48\u628a\u4e00\u4e2a\u6570\u7ec4\u6392\u5e8f"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff1a\u5bfc\u5165 collections \u7c7b\u3002\u4f7f\u7528 arrays.sort() \u65b9\u6cd5\u8fdb\u884c\u5347\u5e8f\u6392\u5e8f\u3002\u5bf9\u4e8e\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668\u6216\u964d\u5e8f\u6392\u5e8f\uff0c\u8bf7\u4f7f\u7528 collections.sort() \u65b9\u6cd5\u548c comparator\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110306541799872.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u628a\u4e00\u4e2a\u6570\u7ec4\u6392\u5e8f\u63d2\u56fe\" alt=\"java\u600e\u4e48\u628a\u4e00\u4e2a\u6570\u7ec4\u6392\u5e8f\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u5982\u4f55\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff1a<\/p>\n<p><strong>1. \u5bfc\u5165 Collections \u7c7b<\/strong><\/p>\n<pre>import java.util.Arrays;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.sort() \u65b9\u6cd5<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>Arrays.sort() \u65b9\u6cd5\u63a5\u53d7\u4e00\u4e2a\u6570\u7ec4\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u5bf9\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002\u8be5\u65b9\u6cd5\u4f7f\u7528\u5feb\u901f\u6392\u5e8f\u7b97\u6cd5\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u6309\u5347\u5e8f\u6392\u5e8f\u3002<\/p>\n<p><strong>\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n<pre>int[] numbers = {5, 2, 8, 3, 1};\nArrays.sort(numbers); \/\/ \u5347\u5e8f\u6392\u5e8f<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668<\/strong><\/p>\n<p>\u8981\u6309\u964d\u5e8f\u6392\u5e8f\u6216\u4f7f\u7528\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668\uff0c\u53ef\u4ee5\u4f7f\u7528 Collections.sort() \u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u63a5\u53d7\u4e00\u4e2a\u6570\u7ec4\u548c\u4e00\u4e2a Comparator \u4f5c\u4e3a\u53c2\u6570\u3002<\/p>\n<p><strong>\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n<pre>\/\/ \u964d\u5e8f\u6bd4\u8f83\u5668\nComparator&lt;Integer&gt; descComparator = new Comparator&lt;Integer&gt;() {\n    @Override\n    public int compare(Integer a, Integer b) {\n        return b - a; \/\/ \u964d\u5e8f\u6bd4\u8f83\n    }\n};\n\n\/\/ \u6309\u964d\u5e8f\u6392\u5e8f\nArrays.sort(numbers, descComparator);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u5176\u4ed6\u6392\u5e8f\u65b9\u6cd5<\/strong><\/p>\n<p>\u9664\u4e86 Arrays.sort() \u548c Collections.sort() \u4e4b\u5916\uff0cJava \u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u6392\u5e8f\u65b9\u6cd5\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li> <strong>MergeSort\uff1a<\/strong>\u5f52\u5e76\u6392\u5e8f\u7b97\u6cd5\uff0c\u901a\u5e38\u6bd4\u5feb\u901f\u6392\u5e8f\u66f4\u7a33\u5b9a\u3002<\/li>\n<li> <strong>BubbleSort\uff1a<\/strong>\u7b97\u6cd5\uff0c\u662f\u4e00\u79cd\u7b80\u5355\u4f46\u6548\u7387\u8f83\u4f4e\u7684\u6392\u5e8f\u7b97\u6cd5\u3002<\/li>\n<li> <strong>SelectionSort\uff1a<\/strong>\u9009\u62e9\u6392\u5e8f\u7b97\u6cd5\uff0c\u901a\u8fc7\u9010\u4e2a\u627e\u5230\u6700\u5c0f\u6216\u6700\u5927\u5143\u7d20\u7684\u65b9\u5f0f\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<\/ul>\n<p><strong>\u9009\u62e9\u6700\u4f73\u6392\u5e8f\u65b9\u6cd5<\/strong><\/p>\n<p>\u6700\u4f73\u6392\u5e8f\u65b9\u6cd5\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u6570\u636e\u5927\u5c0f\u3001\u6392\u5e8f\u987a\u5e8f\u548c\u6240\u9700\u6548\u7387\u3002\u5bf9\u4e8e\u5c0f\u6570\u7ec4\uff0c\u5feb\u901f\u6392\u5e8f\u901a\u5e38\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u9009\u62e9\u3002\u5bf9\u4e8e\u5927\u6570\u7ec4\u6216\u590d\u6742\u7684\u6392\u5e8f\u9700\u6c42\uff0c\u5f52\u5e76\u6392\u5e8f\u53ef\u80fd\u662f\u66f4\u9002\u5408\u7684\u9009\u62e9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u628a\u4e00\u4e2a\u6570\u7ec4\u6392\u5e8f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 java \u4e2d\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff1a\u5bfc\u5165 collections \u7c7b\u3002\u4f7f\u7528 arrays.sort() \u65b9\u6cd5\u8fdb\u884c\u5347\u5e8f\u6392\u5e8f\u3002\u5bf9\u4e8e\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668\u6216\u964d\u5e8f\u6392\u5e8f\uff0c\u8bf7\u4f7f\u7528 collections.sort() \u65b9\u6cd5\u548c comparator\u3002 Java \u4e2d\u5982\u4f55\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff1a 1. \u5bfc\u5165 Collections \u7c7b import java.util.Arrays; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Arrays.sort() \u65b9\u6cd5 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Arrays.sort() \u65b9\u6cd5\u63a5\u53d7\u4e00\u4e2a\u6570\u7ec4\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u5bf9\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002\u8be5\u65b9\u6cd5\u4f7f\u7528\u5feb\u901f\u6392\u5e8f\u7b97\u6cd5\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u6309\u5347\u5e8f\u6392\u5e8f\u3002 \u793a\u4f8b\u4ee3\u7801\uff1a int[] numbers = {5, 2, 8, 3, 1}; Arrays.sort(numbers); \/\/ \u5347\u5e8f\u6392\u5e8f \u767b\u5f55\u540e\u590d\u5236 3. \u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668 \u8981\u6309\u964d\u5e8f\u6392\u5e8f\u6216\u4f7f\u7528\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668\uff0c\u53ef\u4ee5\u4f7f\u7528 Collections.sort() \u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u63a5\u53d7\u4e00\u4e2a\u6570\u7ec4\u548c\u4e00\u4e2a Comparator \u4f5c\u4e3a\u53c2\u6570\u3002 \u793a\u4f8b\u4ee3\u7801\uff1a \/\/ \u964d\u5e8f\u6bd4\u8f83\u5668 Comparator&lt;Integer&gt; descComparator = [&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-34958","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34958","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=34958"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34958\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=34958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=34958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=34958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}