{"id":39695,"date":"2024-11-26T16:48:14","date_gmt":"2024-11-26T08:48:14","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39695\/"},"modified":"2024-11-26T16:48:14","modified_gmt":"2024-11-26T08:48:14","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e6%95%b0%e7%bb%84%e8%bd%ac%e5%8c%96%e4%b8%ba%e5%ad%97%e7%ac%a6%e4%b8%b2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39695\/","title":{"rendered":"java\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u5316\u4e3a\u5b57\u7b26\u4e32"},"content":{"rendered":"<blockquote><p>\n  \u6709\u4e09\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06 java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1aarrays.tostring() \u65b9\u6cd5\u53ef\u751f\u6210\u9017\u53f7\u5206\u9694\u7684\u5143\u7d20\u5b57\u7b26\u4e32\u3002string.join() \u65b9\u6cd5\u8fde\u63a5\u5143\u7d20\u5e76\u5f62\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002\u5faa\u73af\u548c\u5b57\u7b26\u4e32\u8fde\u63a5\u53ef\u9010\u4e2a\u8ffd\u52a0\u5143\u7d20\u5e76\u53bb\u6389\u6700\u540e\u4e00\u4e2a\u9017\u53f7\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111621522045578.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u5316\u4e3a\u5b57\u7b26\u4e32\u63d2\u56fe\" alt=\"java\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u5316\u4e3a\u5b57\u7b26\u4e32\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32<\/strong><\/p>\n<p><strong>\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p><strong>1. \u4f7f\u7528 Arrays.toString() \u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.toString() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5176\u4e2d\u5305\u542b\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u5143\u7d20\u4e4b\u95f4\u7528\u9017\u53f7\u5206\u9694\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nString str = Arrays.toString(arr);\nSystem.out.println(str); \/\/ \u8f93\u51fa: [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\u591a\u4e2a\u5b57\u7b26\u4e32\u7247\u6bb5\u8fde\u63a5\u8d77\u6765\uff0c\u5f62\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nString str = String.join(\",\", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));\nSystem.out.println(str); \/\/ \u8f93\u51fa: 1,2,3,4,5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528\u5faa\u73af\u548c\u5b57\u7b26\u4e32\u8fde\u63a5<\/strong><\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nStringBuilder sb = new StringBuilder();\nfor (int num : arr) {\n    sb.append(num);\n    sb.append(',');\n}\nString str = sb.toString().substring(0, sb.length() - 1); \/\/ \u53bb\u6389\u6700\u540e\u4e00\u4e2a\u9017\u53f7\nSystem.out.println(str); \/\/ \u8f93\u51fa: 1,2,3,4,5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u5316\u4e3a\u5b57\u7b26\u4e32\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>\u6709\u4e09\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06 java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1aarrays.tostring() \u65b9\u6cd5\u53ef\u751f\u6210\u9017\u53f7\u5206\u9694\u7684\u5143\u7d20\u5b57\u7b26\u4e32\u3002string.join() \u65b9\u6cd5\u8fde\u63a5\u5143\u7d20\u5e76\u5f62\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002\u5faa\u73af\u548c\u5b57\u7b26\u4e32\u8fde\u63a5\u53ef\u9010\u4e2a\u8ffd\u52a0\u5143\u7d20\u5e76\u53bb\u6389\u6700\u540e\u4e00\u4e2a\u9017\u53f7\u3002 \u5982\u4f55\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32 \u65b9\u6cd5\uff1a 1. \u4f7f\u7528 Arrays.toString() \u65b9\u6cd5 Arrays.toString() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5176\u4e2d\u5305\u542b\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u5143\u7d20\u4e4b\u95f4\u7528\u9017\u53f7\u5206\u9694\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = {1, 2, 3, 4, 5}; String str = Arrays.toString(arr); System.out.println(str); \/\/ \u8f93\u51fa: [1, 2, 3, 4, 5] \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 String.join() \u65b9\u6cd5 String.join() \u65b9\u6cd5\u5c06\u591a\u4e2a\u5b57\u7b26\u4e32\u7247\u6bb5\u8fde\u63a5\u8d77\u6765\uff0c\u5f62\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002 int[] arr = {1, 2, 3, 4, 5}; String str = String.join(&#8220;,&#8221;, [&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-39695","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39695","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=39695"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39695\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39695"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39695"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39695"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}