{"id":67046,"date":"2025-05-03T17:26:55","date_gmt":"2025-05-03T09:26:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/67046\/"},"modified":"2025-05-03T17:26:55","modified_gmt":"2025-05-03T09:26:55","slug":"java%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%80%8e%e4%b9%88%e6%b7%bb%e5%8a%a0%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84%e5%af%b9%e8%b1%a1%e5%b1%9e%e6%80%a7-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/67046\/","title":{"rendered":"java\u5b57\u7b26\u4e32\u600e\u4e48\u6dfb\u52a0\u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\u5c5e\u6027"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b 3 \u79cd\u65b9\u6cd5\u5411\u5b57\u7b26\u4e32\u6dfb\u52a0\u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\u5c5e\u6027\uff1a1. \u4f7f\u7528 stringbuilder \u7c7b\u7684 append() \u65b9\u6cd5\uff1b2. \u4f7f\u7528 stringjoiner \u7c7b\u7684 add() \u65b9\u6cd5\uff1b3. \u4f7f\u7528 arrays.tostring() \u65b9\u6cd5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/18\/2024111816335141589.jpg\" class=\"aligncenter\" title=\"java\u5b57\u7b26\u4e32\u600e\u4e48\u6dfb\u52a0\u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\u5c5e\u6027\u63d2\u56fe\" alt=\"java\u5b57\u7b26\u4e32\u600e\u4e48\u6dfb\u52a0\u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\u5c5e\u6027\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5411\u5b57\u7b26\u4e32\u6dfb\u52a0\u5bf9\u8c61\u5c5e\u6027<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u5411\u5b57\u7b26\u4e32\u6dfb\u52a0\u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\u5c5e\u6027\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 StringBuilder \u7c7b<\/strong><\/p>\n<p>StringBuilder \u7c7b\u63d0\u4f9b\u4e86 append() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u5404\u79cd\u7c7b\u578b\u7684\u6570\u636e\u9644\u52a0\u5230\u5b57\u7b26\u4e32\u4e2d\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 StringBuilder \u5411\u5b57\u7b26\u4e32\u6dfb\u52a0\u5b57\u7b26\u4e32\u6570\u7ec4\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>StringBuilder sb = new StringBuilder(\"\u539f\u59cb\u5b57\u7b26\u4e32\");\nString[] stringArray = {\"\u5143\u7d20 1\", \"\u5143\u7d20 2\", \"\u5143\u7d20 3\"};\n\nfor (String element : stringArray) {\n    sb.append(\", \").append(element);\n}\n\nString result = sb.toString();\nSystem.out.println(result); \/\/ \u8f93\u51fa\uff1a\"\u539f\u59cb\u5b57\u7b26\u4e32, \u5143\u7d20 1, \u5143\u7d20 2, \u5143\u7d20 3\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 StringJoiner \u7c7b<\/strong><\/p>\n<p>StringJoiner \u7c7b\u63d0\u4f9b\u4e86 add() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u6dfb\u52a0\u5230\u8fde\u63a5\u5668\u4e2d\uff0c\u7136\u540e\u518d\u5c06\u8fde\u63a5\u5668\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u4ee5\u4e0b\u793a\u4f8b\u8bf4\u660e\u4e86\u5982\u4f55\u4f7f\u7528 StringJoiner \u5411\u5b57\u7b26\u4e32\u6dfb\u52a0\u5b57\u7b26\u4e32\u6570\u7ec4\uff1a<\/p>\n<pre>StringJoiner joiner = new StringJoiner(\", \");\nString[] stringArray = {\"\u5143\u7d20 1\", \"\u5143\u7d20 2\", \"\u5143\u7d20 3\"};\n\nfor (String element : stringArray) {\n    joiner.add(element);\n}\n\nString result = joiner.toString();\nSystem.out.println(result); \/\/ \u8f93\u51fa\uff1a\"\u5143\u7d20 1, \u5143\u7d20 2, \u5143\u7d20 3\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 Arrays.toString() \u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.toString() \u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528 Arrays.toString() \u5411\u5b57\u7b26\u4e32\u6dfb\u52a0\u5b57\u7b26\u4e32\u6570\u7ec4\uff1a<\/p>\n<pre>String[] stringArray = {\"\u5143\u7d20 1\", \"\u5143\u7d20 2\", \"\u5143\u7d20 3\"};\nString result = \"\u539f\u59cb\u5b57\u7b26\u4e32\" + Arrays.toString(stringArray);\nSystem.out.println(result); \/\/ \u8f93\u51fa\uff1a\"\u539f\u59cb\u5b57\u7b26\u4e32[\u5143\u7d20 1, \u5143\u7d20 2, \u5143\u7d20 3]\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u5b57\u7b26\u4e32\u600e\u4e48\u6dfb\u52a0\u5bf9\u8c61\u5c5e\u6027\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\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b 3 \u79cd\u65b9\u6cd5\u5411\u5b57\u7b26\u4e32\u6dfb\u52a0\u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\u5c5e\u6027\uff1a1. \u4f7f\u7528 stringbuilder \u7c7b\u7684 append() \u65b9\u6cd5\uff1b2. \u4f7f\u7528 stringjoiner \u7c7b\u7684 add() \u65b9\u6cd5\uff1b3. \u4f7f\u7528 arrays.tostring() \u65b9\u6cd5\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5411\u5b57\u7b26\u4e32\u6dfb\u52a0\u5bf9\u8c61\u5c5e\u6027 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u5411\u5b57\u7b26\u4e32\u6dfb\u52a0\u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\u5c5e\u6027\uff1a 1. \u4f7f\u7528 StringBuilder \u7c7b StringBuilder \u7c7b\u63d0\u4f9b\u4e86 append() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u5404\u79cd\u7c7b\u578b\u7684\u6570\u636e\u9644\u52a0\u5230\u5b57\u7b26\u4e32\u4e2d\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 StringBuilder \u5411\u5b57\u7b26\u4e32\u6dfb\u52a0\u5b57\u7b26\u4e32\u6570\u7ec4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b StringBuilder sb = new StringBuilder(&#8220;\u539f\u59cb\u5b57\u7b26\u4e32&#8221;); String[] stringArray = {&#8220;\u5143\u7d20 1&#8221;, &#8220;\u5143\u7d20 2&#8221;, &#8220;\u5143\u7d20 3&#8221;}; for (String element : stringArray) { [&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-67046","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/67046","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=67046"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/67046\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=67046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=67046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=67046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}