{"id":66696,"date":"2025-05-03T16:50:11","date_gmt":"2025-05-03T08:50:11","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66696\/"},"modified":"2025-05-03T16:50:11","modified_gmt":"2025-05-03T08:50:11","slug":"java%e6%80%8e%e4%b9%88%e5%af%b9%e6%95%b0%e7%bb%84%e5%80%92%e8%bf%87%e6%9d%a5%e8%be%93%e5%87%ba-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66696\/","title":{"rendered":"java\u600e\u4e48\u5bf9\u6570\u7ec4\u5012\u8fc7\u6765\u8f93\u51fa"},"content":{"rendered":"<blockquote><p>\n  \u8981\u5bf9 java \u6570\u7ec4\u5012\u8fc7\u6765\u8f93\u51fa\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1acollections.reverse() \u65b9\u6cd5\uff1a\u5c06\u6570\u7ec4\u5305\u88c5\u5728 arraylist \u4e2d\uff0c\u5e76\u4f7f\u7528\u6b64\u65b9\u6cd5\u53cd\u8f6c\u987a\u5e8f\u3002for \u5faa\u73af\uff1a\u4ece\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\u904d\u5386\uff0c\u4f9d\u6b21\u5c06\u5143\u7d20\u5b58\u50a8\u5230\u65b0\u6570\u7ec4\u4e2d\u3002stream api\uff1a\u4f7f\u7528\u6d41\u7684 reverse() \u65b9\u6cd5\u53cd\u8f6c\u6570\u7ec4\u987a\u5e8f\u3002array.sort() \u65b9\u6cd5\uff1a\u4f7f\u7528 comparator.reverseorder() \u4f5c\u4e3a\u6bd4\u8f83\u5668\u6309\u964d\u5e8f\u6392\u5e8f\u6570\u7ec4\uff0c\u4ece\u800c\u5b9e\u73b0\u5012\u8f6c\u6548\u679c\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111613460266100.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u5bf9\u6570\u7ec4\u5012\u8fc7\u6765\u8f93\u51fa\u63d2\u56fe\" alt=\"java\u600e\u4e48\u5bf9\u6570\u7ec4\u5012\u8fc7\u6765\u8f93\u51fa\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5bf9 Java \u6570\u7ec4\u5012\u8fc7\u6765\u8f93\u51fa<\/strong><\/p>\n<p>\u8981\u5bf9 Java \u6570\u7ec4\u5012\u8fc7\u6765\u8f93\u51fa\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 Collections.reverse() \u65b9\u6cd5<\/strong><\/p>\n<p>Collections.reverse() \u65b9\u6cd5\u53ef\u4ee5\u5c06\u5217\u8868\u6216\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u987a\u5e8f\u53cd\u8f6c\u3002\u8981\u5bf9\u6570\u7ec4\u4f7f\u7528\u6b64\u65b9\u6cd5\uff0c\u9700\u8981\u5c06\u5176\u5305\u88c5\u5728 ArrayList \u4e2d\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = { 1, 2, 3, 4, 5 };\nList&lt;Integer&gt; list = new ArrayList&lt;&gt;(Arrays.asList(arr));\n\nCollections.reverse(list);\n\nfor (int i = 0; i &lt; arr.length; i++) {\n    arr[i] = list.get(i);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 for \u5faa\u73af<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\u4ece\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\u904d\u5386\uff0c\u5e76\u4f9d\u6b21\u5c06\u5143\u7d20\u5b58\u50a8\u5230\u4e00\u4e2a\u65b0\u6570\u7ec4\u4e2d\u3002<\/p>\n<pre>int[] arr = { 1, 2, 3, 4, 5 };\nint[] reversedArr = new int[arr.length];\n\nfor (int i = arr.length - 1, j = 0; i &gt;= 0; i--, j++) {\n    reversedArr[j] = arr[i];\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 Stream API<\/strong><\/p>\n<p>Java 8 \u5f15\u5165\u4e86 Stream API\uff0c\u53ef\u4ee5\u7528\u4e8e\u5bf9\u6570\u7ec4\u8fdb\u884c\u5404\u79cd\u64cd\u4f5c\u3002\u53ef\u4ee5\u4f7f\u7528\u6d41\u7684 reverse() \u65b9\u6cd5\u6765\u53cd\u8f6c\u6570\u7ec4\u7684\u987a\u5e8f\u3002<\/p>\n<pre>int[] arr = { 1, 2, 3, 4, 5 };\nint[] reversedArr = IntStream.of(arr).boxed().sorted(Comparator.reverseOrder()).toArray();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528 Array.sort() \u65b9\u6cd5<\/strong><\/p>\n<p>Array.sort() \u65b9\u6cd5\u53ef\u4ee5\u5bf9\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002\u901a\u8fc7\u63d0\u4f9b Comparator.reverseOrder() \u4f5c\u4e3a\u6bd4\u8f83\u5668\uff0c\u53ef\u4ee5\u5c06\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u6309\u964d\u5e8f\u6392\u5e8f\uff0c\u4ece\u800c\u5b9e\u73b0\u5012\u8f6c\u7684\u6548\u679c\u3002<\/p>\n<pre>int[] arr = { 1, 2, 3, 4, 5 };\nArrays.sort(arr, Comparator.reverseOrder());<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5bf9\u6570\u7ec4\u5012\u8fc7\u6765\u8f93\u51fa\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>\u8981\u5bf9 java \u6570\u7ec4\u5012\u8fc7\u6765\u8f93\u51fa\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1acollections.reverse() \u65b9\u6cd5\uff1a\u5c06\u6570\u7ec4\u5305\u88c5\u5728 arraylist \u4e2d\uff0c\u5e76\u4f7f\u7528\u6b64\u65b9\u6cd5\u53cd\u8f6c\u987a\u5e8f\u3002for \u5faa\u73af\uff1a\u4ece\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\u904d\u5386\uff0c\u4f9d\u6b21\u5c06\u5143\u7d20\u5b58\u50a8\u5230\u65b0\u6570\u7ec4\u4e2d\u3002stream api\uff1a\u4f7f\u7528\u6d41\u7684 reverse() \u65b9\u6cd5\u53cd\u8f6c\u6570\u7ec4\u987a\u5e8f\u3002array.sort() \u65b9\u6cd5\uff1a\u4f7f\u7528 comparator.reverseorder() \u4f5c\u4e3a\u6bd4\u8f83\u5668\u6309\u964d\u5e8f\u6392\u5e8f\u6570\u7ec4\uff0c\u4ece\u800c\u5b9e\u73b0\u5012\u8f6c\u6548\u679c\u3002 \u5982\u4f55\u5bf9 Java \u6570\u7ec4\u5012\u8fc7\u6765\u8f93\u51fa \u8981\u5bf9 Java \u6570\u7ec4\u5012\u8fc7\u6765\u8f93\u51fa\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a 1. \u4f7f\u7528 Collections.reverse() \u65b9\u6cd5 Collections.reverse() \u65b9\u6cd5\u53ef\u4ee5\u5c06\u5217\u8868\u6216\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u987a\u5e8f\u53cd\u8f6c\u3002\u8981\u5bf9\u6570\u7ec4\u4f7f\u7528\u6b64\u65b9\u6cd5\uff0c\u9700\u8981\u5c06\u5176\u5305\u88c5\u5728 ArrayList \u4e2d\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = { 1, 2, 3, 4, 5 }; List&lt;Integer&gt; list = new ArrayList&lt;&gt;(Arrays.asList(arr)); Collections.reverse(list); for (int i = 0; i &lt; arr.length; i++) { arr[i] [&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-66696","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66696","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=66696"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66696\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}