{"id":40322,"date":"2024-11-26T17:42:24","date_gmt":"2024-11-26T09:42:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/40322\/"},"modified":"2024-11-26T17:42:24","modified_gmt":"2024-11-26T09:42:24","slug":"java%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%90%88%e5%b9%b6%e6%88%90%e4%b8%80%e4%b8%aa%e5%ad%97%e7%ac%a6%e4%b8%b2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/40322\/","title":{"rendered":"java\u5b57\u7b26\u4e32\u6570\u7ec4\u600e\u4e48\u5408\u5e76\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32"},"content":{"rendered":"<blockquote><p>\n  \u76f4\u63a5\u5408\u5e76 java \u5b57\u7b26\u4e32\u6570\u7ec4\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u6709 4 \u79cd\uff1a\u4f7f\u7528 string.join() \u65b9\u6cd5\uff0c\u76f4\u63a5\u8fde\u63a5\u5143\u7d20\u3002\u4f7f\u7528\u5faa\u73af\uff0c\u9010\u4e2a\u62fc\u63a5\u5143\u7d20\u3002\u4f7f\u7528 stringbuilder \u7c7b\uff0c\u9891\u7e41\u62fc\u63a5\u65f6\u6548\u7387\u66f4\u9ad8\u3002\u4f7f\u7528 apache commons lang \u7684 stringutils.join() \u65b9\u6cd5\uff0c\u53ef\u6307\u5b9a\u5206\u9694\u7b26\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/18\/2024111817362852416.jpg\" class=\"aligncenter\" title=\"java\u5b57\u7b26\u4e32\u6570\u7ec4\u600e\u4e48\u5408\u5e76\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u63d2\u56fe\" alt=\"java\u5b57\u7b26\u4e32\u6570\u7ec4\u600e\u4e48\u5408\u5e76\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5c06 Java \u5408\u5e76\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32<\/strong><\/p>\n<p><strong>\u76f4\u63a5\u5408\u5e76<\/strong><\/p>\n<p>\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 String.join() \u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u5c06\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff1a<\/p>\n<pre>String[] arr = {\"Hello\", \"World\", \"!\"};\nString result = String.join(\"\", arr); \/\/ \"HelloWorld!\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u5faa\u73af<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u5982\u679c\u9700\u8981\u66f4\u591a\u63a7\u5236\u5408\u5e76\u8fc7\u7a0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\uff1a<\/p>\n<pre>String result = \"\";\nfor (String s : arr) {\n    result += s;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 StringBuilder<\/strong><\/p>\n<p>\u5bf9\u4e8e\u9700\u8981\u9891\u7e41\u62fc\u63a5\u7684\u5927\u91cf\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u4f7f\u7528 StringBuilder \u7c7b\uff1a<\/p>\n<pre>StringBuilder builder = new StringBuilder();\nfor (String s : arr) {\n    builder.append(s);\n}\nString result = builder.toString();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Apache Commons Lang<\/strong><\/p>\n<p>Apache Commons Lang \u63d0\u4f9b\u4e86\u4e00\u4e2a\u540d\u4e3a StringUtils.join() \u7684\u5b9e\u7528\u65b9\u6cd5\uff0c\u5b83\u5141\u8bb8\u6307\u5b9a\u5206\u9694\u7b26\uff1a<\/p>\n<pre>String result = StringUtils.join(arr, \",\"); \/\/ \"Hello,World,!\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6027\u80fd\u8003\u8651<\/strong><\/p>\n<p>\u5bf9\u4e8e\u5c0f\u6570\u7ec4\uff0cString.join() \u6548\u7387\u6700\u9ad8\u3002\u5bf9\u4e8e\u4e2d\u7b49\u5927\u5c0f\u7684\u6570\u7ec4\uff0cStringBuilder \u66f4\u9002\u5408\u3002\u5bf9\u4e8e\u5927\u6570\u7ec4\uff0cString.join() \u53ef\u80fd\u6bd4 StringBuilder \u66f4\u5feb\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5408\u5e76\u6210\u4e00\u4e2a\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>\u76f4\u63a5\u5408\u5e76 java \u5b57\u7b26\u4e32\u6570\u7ec4\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u6709 4 \u79cd\uff1a\u4f7f\u7528 string.join() \u65b9\u6cd5\uff0c\u76f4\u63a5\u8fde\u63a5\u5143\u7d20\u3002\u4f7f\u7528\u5faa\u73af\uff0c\u9010\u4e2a\u62fc\u63a5\u5143\u7d20\u3002\u4f7f\u7528 stringbuilder \u7c7b\uff0c\u9891\u7e41\u62fc\u63a5\u65f6\u6548\u7387\u66f4\u9ad8\u3002\u4f7f\u7528 apache commons lang \u7684 stringutils.join() \u65b9\u6cd5\uff0c\u53ef\u6307\u5b9a\u5206\u9694\u7b26\u3002 \u5982\u4f55\u5c06 Java \u5408\u5e76\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32 \u76f4\u63a5\u5408\u5e76 \u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 String.join() \u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u5c06\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff1a String[] arr = {&#8220;Hello&#8221;, &#8220;World&#8221;, &#8220;!&#8221;}; String result = String.join(&#8220;&#8221;, arr); \/\/ &#8220;HelloWorld!&#8221; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u5faa\u73af \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5982\u679c\u9700\u8981\u66f4\u591a\u63a7\u5236\u5408\u5e76\u8fc7\u7a0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\uff1a String result = &#8220;&#8221;; for (String s : arr) { result += s; } \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 [&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-40322","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/40322","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=40322"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/40322\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=40322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=40322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=40322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}