{"id":66993,"date":"2025-05-03T10:09:55","date_gmt":"2025-05-03T02:09:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66993\/"},"modified":"2025-05-03T10:09:55","modified_gmt":"2025-05-03T02:09:55","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e6%95%b0%e7%bb%84%e8%bd%ac%e6%8d%a2%e6%88%90%e5%ad%97%e7%ac%a6%e4%b8%b2-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66993\/","title":{"rendered":"java\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u6362\u6210\u5b57\u7b26\u4e32"},"content":{"rendered":"<blockquote><p>\n  \u5c06 java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u6709\u4e09\u79cd\u5e38\u7528\u65b9\u6cd5\uff1a\u4f7f\u7528 arrays.tostring()\uff08\u8fd4\u56de\u5305\u542b\u65b9\u62ec\u53f7\u7684\u5b57\u7b26\u4e32\uff09\u3001\u4f7f\u7528 stringbuilder\uff08\u63d0\u4f9b\u81ea\u5b9a\u4e49\u683c\u5f0f\uff09\u3001\u4f7f\u7528 java 8+ \u7684\u6d41\u5f0f api\uff08\u63d0\u4f9b\u7b80\u6d01\u7684\u4ee3\u7801\uff09\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111722331775024.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u63d2\u56fe\" alt=\"java\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u6362\u6210\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>\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u6709\u591a\u79cd\u65b9\u6cd5\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 Arrays.toString() \u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.toString() \u65b9\u6cd5\u53ef\u4ee5\u5c06\u4efb\u610f\u7c7b\u578b\u7684\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u8be5\u65b9\u6cd5\u5c06\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u7528\u9017\u53f7\u5206\u9694\uff0c\u5e76\u5c06\u5176\u62ec\u5728\u65b9\u62ec\u53f7\u4e2d\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nString numbersAsString = Arrays.toString(numbers);\nSystem.out.println(numbersAsString); \/\/ \u8f93\u51fa\uff1a\"[1, 2, 3, 4, 5]\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 StringBuilder<\/strong><\/p>\n<p>StringBuilder \u7c7b\u53ef\u4ee5\u7528\u4e8e\u9ad8\u6548\u5730\u62fc\u63a5\u5b57\u7b26\u4e32\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 append() \u65b9\u6cd5\u4f9d\u6b21\u6dfb\u52a0\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002<\/p>\n<pre>StringBuilder sb = new StringBuilder();\nsb.append(\"[\");\nfor (int number : numbers) {\n    sb.append(number).append(\", \");\n}\nsb.setLength(sb.length() - 2); \/\/ \u53bb\u6389\u6700\u540e\u7684\u9017\u53f7\u548c\u7a7a\u683c\nsb.append(\"]\");\nString numbersAsString = sb.toString();\nSystem.out.println(numbersAsString); \/\/ \u8f93\u51fa\uff1a\"[1, 2, 3, 4, 5]\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 Java 8+ \u7684\u6d41\u5f0f API<\/strong><\/p>\n<p>Java 8 \u5f15\u5165\u4e86\u6d41\u5f0f API\uff0c\u63d0\u4f9b\u4e86\u66f4\u7b80\u6d01\u7684\u65b9\u6cd5\u6765\u64cd\u4f5c\u96c6\u5408\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 Collectors.joining() \u65b9\u6cd5\u5c06\u6570\u7ec4\u5143\u7d20\u8fde\u63a5\u6210\u5b57\u7b26\u4e32\u3002<\/p>\n<pre>String numbersAsString = IntStream.of(numbers).mapToObj(String::valueOf).collect(Collectors.joining(\", \"));\nSystem.out.println(numbersAsString); \/\/ \u8f93\u51fa\uff1a\"1, 2, 3, 4, 5\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u9009\u62e9\u65b9\u6cd5<\/strong><\/p>\n<p>\u4e0a\u8ff0\u4e09\u79cd\u65b9\u6cd5\u5404\u6709\u4f18\u7f3a\u70b9\uff1a<\/p>\n<ul>\n<li>Arrays.toString() \u7b80\u5355\u6613\u7528\uff0c\u4f46\u8fd4\u56de\u7684\u5b57\u7b26\u4e32\u5305\u542b\u65b9\u62ec\u53f7\u3002<\/li>\n<li>StringBuilder \u6548\u7387\u8f83\u9ad8\uff0c\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5b57\u7b26\u4e32\u683c\u5f0f\u3002<\/li>\n<li>\u6d41\u5f0f API \u63d0\u4f9b\u4e86\u66f4\u7b80\u6d01\u7684\u4ee3\u7801\uff0c\u4f46\u9700\u8981 Java 8 \u6216\u66f4\u9ad8\u7248\u672c\u3002<\/li>\n<\/ul>\n<p>\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u9700\u6c42\u548c\u504f\u597d\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\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>\u5c06 java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u6709\u4e09\u79cd\u5e38\u7528\u65b9\u6cd5\uff1a\u4f7f\u7528 arrays.tostring()\uff08\u8fd4\u56de\u5305\u542b\u65b9\u62ec\u53f7\u7684\u5b57\u7b26\u4e32\uff09\u3001\u4f7f\u7528 stringbuilder\uff08\u63d0\u4f9b\u81ea\u5b9a\u4e49\u683c\u5f0f\uff09\u3001\u4f7f\u7528 java 8+ \u7684\u6d41\u5f0f api\uff08\u63d0\u4f9b\u7b80\u6d01\u7684\u4ee3\u7801\uff09\u3002 \u5982\u4f55\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32 \u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u6709\u591a\u79cd\u65b9\u6cd5\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff1a 1. \u4f7f\u7528 Arrays.toString() \u65b9\u6cd5 Arrays.toString() \u65b9\u6cd5\u53ef\u4ee5\u5c06\u4efb\u610f\u7c7b\u578b\u7684\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u8be5\u65b9\u6cd5\u5c06\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u7528\u9017\u53f7\u5206\u9694\uff0c\u5e76\u5c06\u5176\u62ec\u5728\u65b9\u62ec\u53f7\u4e2d\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; String numbersAsString = Arrays.toString(numbers); System.out.println(numbersAsString); \/\/ \u8f93\u51fa\uff1a&#8221;[1, 2, 3, 4, 5]&#8221; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 StringBuilder StringBuilder \u7c7b\u53ef\u4ee5\u7528\u4e8e\u9ad8\u6548\u5730\u62fc\u63a5\u5b57\u7b26\u4e32\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 append() \u65b9\u6cd5\u4f9d\u6b21\u6dfb\u52a0\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002 StringBuilder sb = new StringBuilder(); sb.append(&#8220;[&#8220;); [&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-66993","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66993","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=66993"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66993\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}