{"id":65902,"date":"2025-05-03T08:56:10","date_gmt":"2025-05-03T00:56:10","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65902\/"},"modified":"2025-05-03T08:56:10","modified_gmt":"2025-05-03T00:56:10","slug":"java%e4%b8%ad%e6%95%b0%e7%bb%84%e4%b8%8d%e7%94%a8%e5%be%aa%e7%8e%af%e6%80%8e%e4%b9%88%e8%be%93%e5%87%ba-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65902\/","title":{"rendered":"java\u4e2d\u6570\u7ec4\u4e0d\u7528\u5faa\u73af\u600e\u4e48\u8f93\u51fa"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u53ef\u4e0d\u7528\u5faa\u73af\u8f93\u51fa\u6570\u7ec4\uff1a1. \u4f7f\u7528 arrays.tostring() \u65b9\u6cd5\uff1b2. \u4f7f\u7528 string.join() \u65b9\u6cd5\uff1b3. \u4f7f\u7528 lambda \u8868\u8fbe\u5f0f\u548c collectors.joining() \u65b9\u6cd5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111315005431900.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u6570\u7ec4\u4e0d\u7528\u5faa\u73af\u600e\u4e48\u8f93\u51fa\u63d2\u56fe\" alt=\"java\u4e2d\u6570\u7ec4\u4e0d\u7528\u5faa\u73af\u600e\u4e48\u8f93\u51fa\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u4e0d\u7528\u5faa\u73af\u8f93\u51fa\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4e0d\u7528\u5faa\u73af\u8f93\u51fa\u6570\u7ec4\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 Arrays.toString() \u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.toString() \u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5305\u542b\u5176\u5143\u7d20\u7684\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nSystem.out.println(Arrays.toString(numbers));<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>[1, 2, 3, 4, 5]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 String.join() \u65b9\u6cd5<\/strong><\/p>\n<p>String.join() \u65b9\u6cd5\u5c06\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nString separator = \",\";\nString result = String.join(separator, Arrays.stream(numbers).mapToObj(String::valueOf).toList());\nSystem.out.println(result);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>1,2,3,4,5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 Lambda \u8868\u8fbe\u5f0f\u548c Collectors.joining() \u65b9\u6cd5<\/strong><\/p>\n<p>Collectors.joining() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u5c06\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684 Collector\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nString result = Arrays.stream(numbers).mapToObj(String::valueOf).collect(Collectors.joining(\",\"));\nSystem.out.println(result);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>1,2,3,4,5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u6570\u7ec4\u4e0d\u7528\u5faa\u73af\u600e\u4e48\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>\u5728 java \u4e2d\uff0c\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u53ef\u4e0d\u7528\u5faa\u73af\u8f93\u51fa\u6570\u7ec4\uff1a1. \u4f7f\u7528 arrays.tostring() \u65b9\u6cd5\uff1b2. \u4f7f\u7528 string.join() \u65b9\u6cd5\uff1b3. \u4f7f\u7528 lambda \u8868\u8fbe\u5f0f\u548c collectors.joining() \u65b9\u6cd5\u3002 \u5982\u4f55\u5728 Java \u4e2d\u4e0d\u7528\u5faa\u73af\u8f93\u51fa\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4e0d\u7528\u5faa\u73af\u8f93\u51fa\u6570\u7ec4\uff1a 1. \u4f7f\u7528 Arrays.toString() \u65b9\u6cd5 Arrays.toString() \u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5305\u542b\u5176\u5143\u7d20\u7684\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; System.out.println(Arrays.toString(numbers)); \u767b\u5f55\u540e\u590d\u5236 \u8f93\u51fa\uff1a [1, 2, 3, 4, 5] \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 String.join() \u65b9\u6cd5 String.join() \u65b9\u6cd5\u5c06\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff1a int[] numbers = {1, 2, [&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-65902","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65902","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=65902"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65902\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}