{"id":65629,"date":"2025-05-03T13:40:02","date_gmt":"2025-05-03T05:40:02","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65629\/"},"modified":"2025-05-03T13:40:02","modified_gmt":"2025-05-03T05:40:02","slug":"java%e6%80%8e%e4%b9%88int%e6%95%b0%e7%bb%84%e8%bd%acstring-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65629\/","title":{"rendered":"java\u600e\u4e48int\u6570\u7ec4\u8f6cstring"},"content":{"rendered":"<blockquote><p>\n  \u5c06int\u6570\u7ec4\u8f6c\u6362\u4e3astring\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528string.join()\u5c06int\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u7528\u9017\u53f7\u5206\u9694\u5e76\u8fde\u63a5\u4e3astring\u3002\u521b\u5efastringbuilder\uff0c\u9010\u4e2a\u5c06int\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u6dfb\u52a0\u5230stringbuilder\u4e2d\uff0c\u518d\u4ecestringbuilder\u4e2d\u83b7\u53d6string\u5e76\u5220\u9664\u6700\u540e\u4e00\u4e2a\u9017\u53f7\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111305550145639.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48int\u6570\u7ec4\u8f6cstring\u63d2\u56fe\" alt=\"java\u600e\u4e48int\u6570\u7ec4\u8f6cstring\u63d2\u56fe\" \/><\/p>\n<p><strong>java\u4e2dint\u6570\u7ec4\u8f6cString\u65b9\u6cd5<\/strong><\/p>\n<p><strong>\u5f00\u95e8\u89c1\u5c71\uff1a<\/strong><br \/>\u5c06int\u6570\u7ec4\u8f6c\u6362\u4e3aString\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u8be6\u7ec6\u5c55\u5f00\uff1a<\/strong><\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u4f7f\u7528String.join()<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>\/\/ \u5b9a\u4e49\u4e00\u4e2a int \u6570\u7ec4\nint[] arr = {1, 2, 3, 4, 5};\n\n\/\/ \u4f7f\u7528 String.join() \u5c06 int \u6570\u7ec4\u8f6c\u6362\u4e3a String\nString str = String.join(\",\", arr);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528StringBuilder<\/strong><\/p>\n<pre>\/\/ \u5b9a\u4e49\u4e00\u4e2a StringBuilder\nStringBuilder sb = new StringBuilder();\n\n\/\/ \u904d\u5386 int \u6570\u7ec4\u5e76\u5c06\u5176\u6dfb\u52a0\u5230 StringBuilder \u4e2d\nfor (int num : arr) {\n    sb.append(num).append(\",\");\n}\n\n\/\/ \u4ece StringBuilder \u4e2d\u83b7\u53d6 String\nString str = sb.toString();\n\n\/\/ \u5220\u9664\u6700\u540e\u4e00\u4e2a\u9017\u53f7\nstr = str.substring(0, str.length() - 1);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>Java\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\n\n\/\/ \u4f7f\u7528 String.join()\nString str1 = String.join(\",\", arr);\n\n\/\/ \u4f7f\u7528 StringBuilder\nStringBuilder sb = new StringBuilder();\nfor (int num : arr) {\n    sb.append(num).append(\",\");\n}\nString str2 = sb.toString();\nstr2 = str2.substring(0, str2.length() - 1);\n\nSystem.out.println(\"\u4f7f\u7528 String.join()\uff1a\" + str1);\nSystem.out.println(\"\u4f7f\u7528 StringBuilder\uff1a\" + str2);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8f93\u51fa\uff1a<\/strong><\/p>\n<pre>\u4f7f\u7528 String.join()\uff1a1,2,3,4,5\n\u4f7f\u7528 StringBuilder\uff1a1,2,3,4,5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48int\u6570\u7ec4\u8f6cstring\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>\u5c06int\u6570\u7ec4\u8f6c\u6362\u4e3astring\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528string.join()\u5c06int\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u7528\u9017\u53f7\u5206\u9694\u5e76\u8fde\u63a5\u4e3astring\u3002\u521b\u5efastringbuilder\uff0c\u9010\u4e2a\u5c06int\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u6dfb\u52a0\u5230stringbuilder\u4e2d\uff0c\u518d\u4ecestringbuilder\u4e2d\u83b7\u53d6string\u5e76\u5220\u9664\u6700\u540e\u4e00\u4e2a\u9017\u53f7\u3002 java\u4e2dint\u6570\u7ec4\u8f6cString\u65b9\u6cd5 \u5f00\u95e8\u89c1\u5c71\uff1a\u5c06int\u6570\u7ec4\u8f6c\u6362\u4e3aString\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a \u8be6\u7ec6\u5c55\u5f00\uff1a \u65b9\u6cd5 1\uff1a\u4f7f\u7528String.join() \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \/\/ \u5b9a\u4e49\u4e00\u4e2a int \u6570\u7ec4 int[] arr = {1, 2, 3, 4, 5}; \/\/ \u4f7f\u7528 String.join() \u5c06 int \u6570\u7ec4\u8f6c\u6362\u4e3a String String str = String.join(&#8220;,&#8221;, arr); \u767b\u5f55\u540e\u590d\u5236 \u65b9\u6cd5 2\uff1a\u4f7f\u7528StringBuilder \/\/ \u5b9a\u4e49\u4e00\u4e2a StringBuilder StringBuilder sb = new StringBuilder(); \/\/ \u904d\u5386 int \u6570\u7ec4\u5e76\u5c06\u5176\u6dfb\u52a0\u5230 StringBuilder \u4e2d for (int num : arr) { sb.append(num).append(&#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-65629","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65629","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=65629"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65629\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65629"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}