{"id":64534,"date":"2025-05-03T10:26:55","date_gmt":"2025-05-03T02:26:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64534\/"},"modified":"2025-05-03T10:26:55","modified_gmt":"2025-05-03T02:26:55","slug":"java%e6%95%b0%e7%bb%84%e6%a0%bc%e5%bc%8f%e7%9a%84%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%80%8e%e4%b9%88%e8%bd%ac-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64534\/","title":{"rendered":"java\u6570\u7ec4\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u600e\u4e48\u8f6c"},"content":{"rendered":"<blockquote><p>\n  java \u6570\u7ec4\u683c\u5f0f\u5b57\u7b26\u4e32\u8f6c\u6362\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528 stringbuilder \u62fc\u63a5\uff1b\u4f7f\u7528 string.join()\uff1b\u4f7f\u7528 arrays.tostring() \u53bb\u9664\u9996\u5c3e\u4e2d\u62ec\u53f7\uff1b\u4f7f\u7528 foreach() \u62fc\u63a5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110323542619668.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u600e\u4e48\u8f6c\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u600e\u4e48\u8f6c\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u6570\u7ec4\u683c\u5f0f\u5b57\u7b26\u4e32\u8f6c\u6362<\/strong><\/p>\n<p>\u5c06 Java \u6570\u7ec4\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u8f6c\u6362\u6210\u5176\u4ed6\u683c\u5f0f\uff08\u4f8b\u5982\u9017\u53f7\u5206\u9694\u3001\u7a7a\u683c\u5206\u9694\uff09\u7684\u65b9\u6cd5\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 StringBuilder \u62fc\u63a5<\/strong><\/p>\n<pre>String[] arr = {\"apple\", \"banana\", \"cherry\"};\n\nStringBuilder sb = new StringBuilder();\nfor (String s : arr) {\n    sb.append(s).append(\", \");  \/\/ \u4f7f\u7528\u9017\u53f7\u5206\u9694\n}\nsb.deleteCharAt(sb.length() - 2);  \/\/ \u5220\u9664\u6700\u540e\u4e00\u4e2a\u9017\u53f7\n\nString result = sb.toString();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 String.join()<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>String[] arr = {\"apple\", \"banana\", \"cherry\"};\n\nString result = String.join(\", \", arr);  \/\/ \u4f7f\u7528\u9017\u53f7\u5206\u9694<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 Arrays.toString()<\/strong><\/p>\n<pre>String[] arr = {\"apple\", \"banana\", \"cherry\"};\n\nString result = Arrays.toString(arr).substring(1, Arrays.toString(arr).length() - 1);  \/\/ \u53bb\u9664\u9996\u5c3e\u7684\u4e2d\u62ec\u53f7<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528 forEach()<\/strong><\/p>\n<pre>String[] arr = {\"apple\", \"banana\", \"cherry\"};\n\nStringBuilder sb = new StringBuilder();\nArrays.stream(arr).forEach(s -&gt; sb.append(s).append(\", \"));  \/\/ \u4f7f\u7528\u9017\u53f7\u5206\u9694\nsb.deleteCharAt(sb.length() - 2);  \/\/ \u5220\u9664\u6700\u540e\u4e00\u4e2a\u9017\u53f7\n\nString result = sb.toString();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u600e\u4e48\u8f6c\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>java \u6570\u7ec4\u683c\u5f0f\u5b57\u7b26\u4e32\u8f6c\u6362\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528 stringbuilder \u62fc\u63a5\uff1b\u4f7f\u7528 string.join()\uff1b\u4f7f\u7528 arrays.tostring() \u53bb\u9664\u9996\u5c3e\u4e2d\u62ec\u53f7\uff1b\u4f7f\u7528 foreach() \u62fc\u63a5\u3002 Java \u6570\u7ec4\u683c\u5f0f\u5b57\u7b26\u4e32\u8f6c\u6362 \u5c06 Java \u6570\u7ec4\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u8f6c\u6362\u6210\u5176\u4ed6\u683c\u5f0f\uff08\u4f8b\u5982\u9017\u53f7\u5206\u9694\u3001\u7a7a\u683c\u5206\u9694\uff09\u7684\u65b9\u6cd5\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a 1. \u4f7f\u7528 StringBuilder \u62fc\u63a5 String[] arr = {&#8220;apple&#8221;, &#8220;banana&#8221;, &#8220;cherry&#8221;}; StringBuilder sb = new StringBuilder(); for (String s : arr) { sb.append(s).append(&#8220;, &#8220;); \/\/ \u4f7f\u7528\u9017\u53f7\u5206\u9694 } sb.deleteCharAt(sb.length() &#8211; 2); \/\/ \u5220\u9664\u6700\u540e\u4e00\u4e2a\u9017\u53f7 String result = sb.toString(); \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 String.join() \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b String[] [&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-64534","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64534","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=64534"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64534\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64534"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64534"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64534"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}