{"id":66814,"date":"2025-05-03T10:59:08","date_gmt":"2025-05-03T02:59:08","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66814\/"},"modified":"2025-05-03T10:59:08","modified_gmt":"2025-05-03T02:59:08","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e4%b8%80%e6%95%b4%e4%b8%aa%e6%95%b0%e7%bb%84%e8%be%93%e5%87%ba-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66814\/","title":{"rendered":"java\u600e\u4e48\u628a\u4e00\u6574\u4e2a\u6570\u7ec4\u8f93\u51fa"},"content":{"rendered":"<blockquote><p>\n  \u5171\u6709\u56db\u79cd\u4f7f\u7528 java \u8f93\u51fa\u6574\u4e2a\u6570\u7ec4\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528 arrays.tostring() \u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u4f7f\u7528 for-each \u5faa\u73af\u9010\u4e2a\u6253\u5370\u5143\u7d20\u3002\u4f7f\u7528 stringbuilder \u9010\u4e2a\u9644\u52a0\u5143\u7d20\u5e76\u6784\u5efa\u5b57\u7b26\u4e32\u3002\u4f7f\u7528 string.join() \u65b9\u6cd5\uff08java 8 \u53ca\u66f4\u9ad8\u7248\u672c\uff09\u5c06\u5b57\u7b26\u4e32\u6570\u7ec4\u8fde\u63a5\u6210\u5b57\u7b26\u4e32\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111710575687099.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u628a\u4e00\u6574\u4e2a\u6570\u7ec4\u8f93\u51fa\u63d2\u56fe\" alt=\"java\u600e\u4e48\u628a\u4e00\u6574\u4e2a\u6570\u7ec4\u8f93\u51fa\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u7528 Java \u8f93\u51fa\u6574\u4e2a\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u8f93\u51fa\u6574\u4e2a\u6570\u7ec4\u3002<\/p>\n<p><strong>1. \u4f7f\u7528 Arrays.toString() \u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.toString() \u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5305\u542b\u6570\u7ec4\u4e2d\u6240\u6709\u5143\u7d20\u7684\u9017\u53f7\u5206\u9694\u5217\u8868\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nSystem.out.println(Arrays.toString(numbers)); \/\/ \u8f93\u51fa\uff1a[1, 2, 3, 4, 5]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 for-each \u5faa\u73af<\/strong><\/p>\n<p>for-each \u5faa\u73af\u5141\u8bb8\u60a8\u904d\u5386\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u6253\u5370\u8be5\u5143\u7d20\u3002<\/p>\n<pre>for (int number : numbers) {\n    System.out.print(number + \" \"); \/\/ \u8f93\u51fa\uff1a1 2 3 4 5\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 StringBuilder<\/strong><\/p>\n<p>StringBuilder \u7c7b\u5141\u8bb8\u60a8\u901a\u8fc7\u591a\u6b21\u9644\u52a0\u64cd\u4f5c\u6784\u5efa\u4e00\u4e2a\u53ef\u53d8\u5b57\u7b26\u4e32\u3002<\/p>\n<pre>StringBuilder builder = new StringBuilder(\"[\");\nfor (int number : numbers) {\n    builder.append(number).append(\", \");\n}\nbuilder.append(\"]\");\nSystem.out.println(builder.toString()); \/\/ \u8f93\u51fa\uff1a[1, 2, 3, 4, 5]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528 String.join() \u65b9\u6cd5\uff08Java 8 \u53ca\u66f4\u9ad8\u7248\u672c\uff09<\/strong><\/p>\n<p>String.join() \u65b9\u6cd5\u5c06\u8fde\u63a5\u6210\u4e00\u4e2a\u7528\u6307\u5b9a\u5206\u9694\u7b26\u5206\u9694\u7684\u65b0\u5b57\u7b26\u4e32\u3002<\/p>\n<pre>String[] strings = {\"a\", \"b\", \"c\", \"d\", \"e\"};\nSystem.out.println(String.join(\",\", strings)); \/\/ \u8f93\u51fa\uff1aa,b,c,d,e<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u628a\u4e00\u6574\u4e2a\u6570\u7ec4\u8f93\u51fa\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>\u5171\u6709\u56db\u79cd\u4f7f\u7528 java \u8f93\u51fa\u6574\u4e2a\u6570\u7ec4\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528 arrays.tostring() \u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u4f7f\u7528 for-each \u5faa\u73af\u9010\u4e2a\u6253\u5370\u5143\u7d20\u3002\u4f7f\u7528 stringbuilder \u9010\u4e2a\u9644\u52a0\u5143\u7d20\u5e76\u6784\u5efa\u5b57\u7b26\u4e32\u3002\u4f7f\u7528 string.join() \u65b9\u6cd5\uff08java 8 \u53ca\u66f4\u9ad8\u7248\u672c\uff09\u5c06\u5b57\u7b26\u4e32\u6570\u7ec4\u8fde\u63a5\u6210\u5b57\u7b26\u4e32\u3002 \u5982\u4f55\u7528 Java \u8f93\u51fa\u6574\u4e2a\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u8f93\u51fa\u6574\u4e2a\u6570\u7ec4\u3002 1. \u4f7f\u7528 Arrays.toString() \u65b9\u6cd5 Arrays.toString() \u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5305\u542b\u6570\u7ec4\u4e2d\u6240\u6709\u5143\u7d20\u7684\u9017\u53f7\u5206\u9694\u5217\u8868\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; System.out.println(Arrays.toString(numbers)); \/\/ \u8f93\u51fa\uff1a[1, 2, 3, 4, 5] \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 for-each \u5faa\u73af for-each \u5faa\u73af\u5141\u8bb8\u60a8\u904d\u5386\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u6253\u5370\u8be5\u5143\u7d20\u3002 for (int number : numbers) { System.out.print(number [&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-66814","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66814","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=66814"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66814\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}