{"id":64140,"date":"2025-05-03T11:08:33","date_gmt":"2025-05-03T03:08:33","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64140\/"},"modified":"2025-05-03T11:08:33","modified_gmt":"2025-05-03T03:08:33","slug":"java%e6%80%8e%e4%b9%88%e5%b0%86%e6%95%b0%e7%bb%84%e5%8f%98%e6%88%90%e5%ad%97%e7%ac%a6%e4%b8%b2-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64140\/","title":{"rendered":"java\u600e\u4e48\u5c06\u6570\u7ec4\u53d8\u6210\u5b57\u7b26\u4e32"},"content":{"rendered":"<blockquote><p>\n  java \u6570\u7ec4\u53ef\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1a\u4f7f\u7528 arrays.tostring() \u65b9\u6cd5\uff0c\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5305\u542b\u5143\u7d20\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u7684\u5b57\u7b26\u4e32\u3002\u4f7f\u7528 stringjoiner \u7c7b\u8fde\u63a5\u5b57\u7b26\u4e32\uff0c\u5305\u62ec\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u4f7f\u7528 stringbuilder \u7c7b\u9ad8\u6548\u5730\u6784\u5efa\u5b57\u7b26\u4e32\uff0c\u5305\u62ec\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u7f16\u5199\u81ea\u5b9a\u4e49\u51fd\u6570\u6765\u8f6c\u6362\u6570\u7ec4\u4e3a\u5b57\u7b26\u4e32\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/02\/2024110215124984221.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u5c06\u6570\u7ec4\u53d8\u6210\u5b57\u7b26\u4e32\u63d2\u56fe\" alt=\"java\u600e\u4e48\u5c06\u6570\u7ec4\u53d8\u6210\u5b57\u7b26\u4e32\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u6210\u5b57\u7b26\u4e32<\/strong><\/p>\n<p>\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u6709\u591a\u79cd\u3002<\/p>\n<p><strong>1. \u4f7f\u7528 Arrays.toString()<\/strong><\/p>\n<p>Arrays.toString() \u65b9\u6cd5\u53ef\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5305\u542b\u5143\u7d20\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = {1, 2, 3};\nString str = Arrays.toString(arr); \/\/ \u8f93\u51fa\uff1a\"[1, 2, 3]\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 StringJoiner<\/strong><\/p>\n<p>StringJoiner \u7c7b\u53ef\u7528\u4e8e\u8fde\u63a5\u5b57\u7b26\u4e32\uff0c\u5305\u62ec\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002<\/p>\n<pre>int[] arr = {1, 2, 3};\nStringJoiner joiner = new StringJoiner(\", \");\nfor (int num : arr) {\n    joiner.add(String.valueOf(num));\n}\nString str = joiner.toString(); \/\/ \u8f93\u51fa\uff1a\"1, 2, 3\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 StringBuilder<\/strong><\/p>\n<p>StringBuilder \u7c7b\u53ef\u7528\u4e8e\u9ad8\u6548\u5730\u6784\u5efa\u5b57\u7b26\u4e32\uff0c\u5305\u62ec\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002<\/p>\n<pre>int[] arr = {1, 2, 3};\nStringBuilder sb = new StringBuilder();\nsb.append(\"[\");\nfor (int i = 0; i &lt; arr.length; i++) {\n    sb.append(arr[i]);\n    if (i &lt; arr.length - 1) {\n        sb.append(\", \");\n    }\n}\nsb.append(\"]\");\nString str = sb.toString(); \/\/ \u8f93\u51fa\uff1a\"[1, 2, 3]\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528\u81ea\u5b9a\u4e49\u51fd\u6570<\/strong><\/p>\n<p>\u60a8\u8fd8\u53ef\u4ee5\u7f16\u5199\u81ea\u5df1\u7684\u51fd\u6570\u6765\u8f6c\u6362\u6570\u7ec4\u4e3a\u5b57\u7b26\u4e32\u3002<\/p>\n<pre>public static String arrayToString(int[] arr) {\n    String str = \"\";\n    for (int num : arr) {\n        str += num + \", \";\n    }\n    return str.substring(0, str.length() - 2);\n}\n\nint[] arr = {1, 2, 3};\nString str = arrayToString(arr); \/\/ \u8f93\u51fa\uff1a\"1, 2, 3\"<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5c06\u6570\u7ec4\u53d8\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>java \u6570\u7ec4\u53ef\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1a\u4f7f\u7528 arrays.tostring() \u65b9\u6cd5\uff0c\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5305\u542b\u5143\u7d20\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u7684\u5b57\u7b26\u4e32\u3002\u4f7f\u7528 stringjoiner \u7c7b\u8fde\u63a5\u5b57\u7b26\u4e32\uff0c\u5305\u62ec\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u4f7f\u7528 stringbuilder \u7c7b\u9ad8\u6548\u5730\u6784\u5efa\u5b57\u7b26\u4e32\uff0c\u5305\u62ec\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u7f16\u5199\u81ea\u5b9a\u4e49\u51fd\u6570\u6765\u8f6c\u6362\u6570\u7ec4\u4e3a\u5b57\u7b26\u4e32\u3002 \u5982\u4f55\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u6210\u5b57\u7b26\u4e32 \u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u6709\u591a\u79cd\u3002 1. \u4f7f\u7528 Arrays.toString() Arrays.toString() \u65b9\u6cd5\u53ef\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5305\u542b\u5143\u7d20\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u7684\u5b57\u7b26\u4e32\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = {1, 2, 3}; String str = Arrays.toString(arr); \/\/ \u8f93\u51fa\uff1a&#8221;[1, 2, 3]&#8221; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 StringJoiner StringJoiner \u7c7b\u53ef\u7528\u4e8e\u8fde\u63a5\u5b57\u7b26\u4e32\uff0c\u5305\u62ec\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002 int[] arr = {1, 2, 3}; StringJoiner joiner = new StringJoiner(&#8220;, &#8220;); for (int num [&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-64140","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64140","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=64140"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64140\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64140"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}