{"id":39650,"date":"2024-11-26T10:43:38","date_gmt":"2024-11-26T02:43:38","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39650\/"},"modified":"2024-11-26T10:43:38","modified_gmt":"2024-11-26T02:43:38","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e6%95%b0%e7%bb%84%e5%8f%98%e4%b8%ba%e5%ad%97%e7%ac%a6%e4%b8%b2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39650\/","title":{"rendered":"java\u600e\u4e48\u628a\u6570\u7ec4\u53d8\u4e3a\u5b57\u7b26\u4e32"},"content":{"rendered":"<blockquote><p>\n  \u7b54\u6848\uff1a\u53ef\u4ee5\u4f7f\u7528 arrays.tostring() \u65b9\u6cd5\u3001stringjoiner \u7c7b\u6216 stringbuilder \u7c7b\u5c06 java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u8be6\u7ec6\u63cf\u8ff0\uff1aarrays.tostring() \u65b9\u6cd5\uff1a\u8fd4\u56de\u4e00\u4e2a\u4ee5\u65b9\u62ec\u53f7\u5305\u56f4\u7684\u3001\u9017\u53f7\u5206\u9694\u5143\u7d20\u7684\u5b57\u7b26\u4e32\u3002stringjoiner \u7c7b\uff1a\u5141\u8bb8\u6307\u5b9a\u8fde\u63a5\u7b26\u6765\u8fde\u63a5\u5b57\u7b26\u4e32\uff0c\u63d0\u4f9b\u81ea\u5b9a\u4e49\u7684\u5b57\u7b26\u4e32\u8868\u793a\u3002stringbuilder \u7c7b\uff1a\u521b\u5efa\u4e86\u4e00\u4e2a\u53ef\u53d8\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\uff0c\u53ef\u4ee5\u9ad8\u6548\u5730\u9644\u52a0\u5b57\u7b26\u4e32\u5143\u7d20\uff0c\u672b\u5c3e\u53ef\u80fd\u4f1a\u9644\u52a0\u989d\u5916\u7684\u8fde\u63a5\u7b26\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111620063754608.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u628a\u6570\u7ec4\u53d8\u4e3a\u5b57\u7b26\u4e32\u63d2\u56fe\" alt=\"java\u600e\u4e48\u628a\u6570\u7ec4\u53d8\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>\u5728 Java \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 Arrays.toString() \u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.toString() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u8868\u793a\u7ed9\u5b9a\u6570\u7ec4\u5143\u7d20\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nString arrayAsString = Arrays.toString(numbers);\nSystem.out.println(arrayAsString); \/\/ \u8f93\u51fa\uff1a\"[1, 2, 3, 4, 5]\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 StringJoiner \u7c7b<\/strong><\/p>\n<p>StringJoiner \u7c7b\u53ef\u4ee5\u7528\u6765\u4ee5\u6307\u5b9a\u7684\u8fde\u63a5\u7b26\u8fde\u63a5\u5b57\u7b26\u4e32\u3002<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nStringJoiner joiner = new StringJoiner(\", \"); \/\/ \u8fde\u63a5\u7b26\u4e3a\u9017\u53f7\u548c\u7a7a\u683c\nfor (int number : numbers) {\n    joiner.add(String.valueOf(number)); \/\/ \u5c06\u6570\u7ec4\u5143\u7d20\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u5e76\u6dfb\u52a0\u5230 StringJoiner\n}\nString arrayAsString = joiner.toString();\nSystem.out.println(arrayAsString); \/\/ \u8f93\u51fa\uff1a\"1, 2, 3, 4, 5\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 StringBuilder \u7c7b<\/strong><\/p>\n<p>StringBuilder \u7c7b\u53ef\u4ee5\u7528\u6765\u521b\u5efa\u4e00\u4e2a\u53ef\u53d8\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\u3002<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nStringBuilder builder = new StringBuilder();\nfor (int number : numbers) {\n    builder.append(number).append(\", \"); \/\/ \u9644\u52a0\u6570\u7ec4\u5143\u7d20\u5e76\u8ffd\u52a0\u9017\u53f7\u548c\u7a7a\u683c\n}\nString arrayAsString = builder.toString();\nSystem.out.println(arrayAsString); \/\/ \u8f93\u51fa\uff1a\"1, 2, 3, 4, 5, \"\uff08\u672b\u5c3e\u591a\u4e86\u4e00\u4e2a\u9017\u53f7\u548c\u7a7a\u683c\uff09<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>Arrays.toString() \u65b9\u6cd5\u8fd4\u56de\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u4e3a &#8220;[\u5143\u7d201, \u5143\u7d202, &#8230;]&#8221;\uff0c\u5176\u4e2d\u5143\u7d20\u7528\u9017\u53f7\u5206\u9694\u3002<\/li>\n<li>StringJoiner \u7c7b\u5141\u8bb8\u6307\u5b9a\u8fde\u63a5\u7b26\u4ee5\u81ea\u5b9a\u4e49\u5b57\u7b26\u4e32\u8868\u793a\u3002<\/li>\n<li>StringBuilder \u7c7b\u521b\u5efa\u7684\u53ef\u53d8\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\u53ef\u4ee5\u9ad8\u6548\u5730\u9644\u52a0\u5b57\u7b26\u4e32\u5143\u7d20\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u628a\u6570\u7ec4\u53d8\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>\u7b54\u6848\uff1a\u53ef\u4ee5\u4f7f\u7528 arrays.tostring() \u65b9\u6cd5\u3001stringjoiner \u7c7b\u6216 stringbuilder \u7c7b\u5c06 java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u8be6\u7ec6\u63cf\u8ff0\uff1aarrays.tostring() \u65b9\u6cd5\uff1a\u8fd4\u56de\u4e00\u4e2a\u4ee5\u65b9\u62ec\u53f7\u5305\u56f4\u7684\u3001\u9017\u53f7\u5206\u9694\u5143\u7d20\u7684\u5b57\u7b26\u4e32\u3002stringjoiner \u7c7b\uff1a\u5141\u8bb8\u6307\u5b9a\u8fde\u63a5\u7b26\u6765\u8fde\u63a5\u5b57\u7b26\u4e32\uff0c\u63d0\u4f9b\u81ea\u5b9a\u4e49\u7684\u5b57\u7b26\u4e32\u8868\u793a\u3002stringbuilder \u7c7b\uff1a\u521b\u5efa\u4e86\u4e00\u4e2a\u53ef\u53d8\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\uff0c\u53ef\u4ee5\u9ad8\u6548\u5730\u9644\u52a0\u5b57\u7b26\u4e32\u5143\u7d20\uff0c\u672b\u5c3e\u53ef\u80fd\u4f1a\u9644\u52a0\u989d\u5916\u7684\u8fde\u63a5\u7b26\u3002 \u5982\u4f55\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32 \u5728 Java \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1a 1. \u4f7f\u7528 Arrays.toString() \u65b9\u6cd5 Arrays.toString() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u8868\u793a\u7ed9\u5b9a\u6570\u7ec4\u5143\u7d20\u7684\u5b57\u7b26\u4e32\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; String arrayAsString = Arrays.toString(numbers); System.out.println(arrayAsString); \/\/ \u8f93\u51fa\uff1a&#8221;[1, 2, 3, 4, 5]&#8221; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 StringJoiner \u7c7b StringJoiner \u7c7b\u53ef\u4ee5\u7528\u6765\u4ee5\u6307\u5b9a\u7684\u8fde\u63a5\u7b26\u8fde\u63a5\u5b57\u7b26\u4e32\u3002 int[] numbers = {1, 2, [&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-39650","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39650","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=39650"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39650\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}