{"id":66693,"date":"2025-05-03T15:58:54","date_gmt":"2025-05-03T07:58:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66693\/"},"modified":"2025-05-03T15:58:54","modified_gmt":"2025-05-03T07:58:54","slug":"%e6%80%8e%e4%b9%88%e6%8a%8a%e6%95%b0%e7%bb%84%e5%8f%98%e6%88%90%e5%ad%97%e7%ac%a6%e4%b8%b2java-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66693\/","title":{"rendered":"\u600e\u4e48\u628a\u6570\u7ec4\u53d8\u6210\u5b57\u7b26\u4e32java"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7684\u51e0\u79cd\u65b9\u6cd5\u5305\u62ec\uff1a\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u4f7f\u7528 arrays.tostring()\uff0c\u5bf9\u8c61\u6570\u7ec4\u6216\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4\u4f7f\u7528 stringbuilder\uff0cjdk 8+ \u7248\u672c\u4f7f\u7528 string.join() \u6216 java 8+ \u6d41\u5f0f api\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111613373150551.jpg\" class=\"aligncenter\" title=\"\u600e\u4e48\u628a\u6570\u7ec4\u53d8\u6210\u5b57\u7b26\u4e32java\u63d2\u56fe\" alt=\"\u600e\u4e48\u628a\u6570\u7ec4\u53d8\u6210\u5b57\u7b26\u4e32java\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff08Java\uff09<\/strong><\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong>\u5982\u4f55\u5c06 Java \u4e2d\u7684\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1f<\/p>\n<p><strong>\u56de\u7b54\uff1a<\/strong><\/p>\n<p>\u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u6570\u7ec4\u7684\u7c7b\u578b\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p><strong>1. \u4f7f\u7528 Arrays.toString()\uff08\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff09<\/strong><\/p>\n<p>\u5bf9\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff08\u5982 int[]\u3001double[]\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528 Arrays.toString() \u65b9\u6cd5\uff1a<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nString numbersString = Arrays.toString(numbers);\nSystem.out.println(numbersString); \/\/ \u8f93\u51fa\uff1a[1, 2, 3, 4, 5]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 StringBuilder\uff08\u5bf9\u8c61\u6570\u7ec4\u6216\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4\uff09<\/strong><\/p>\n<p>\u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\u6216\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 StringBuilder\uff1a<\/p>\n<pre>Object[] objects = {\"John\", \"Mary\", \"Bob\"};\nStringBuilder builder = new StringBuilder();\nfor (Object object : objects) {\n    builder.append(object.toString());\n}\nString objectsString = builder.toString();\nSystem.out.println(objectsString); \/\/ \u8f93\u51fa\uff1aJohnMaryBob<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 String.join()\uff08JDK 8 \u4ee5\u4e0a\u7248\u672c\uff09<\/strong><\/p>\n<p>\u5bf9\u4e8e JDK 8 \u53ca\u66f4\u9ad8\u7248\u672c\uff0c\u53ef\u4ee5\u4f7f\u7528 String.join() \u65b9\u6cd5\uff1a<\/p>\n<pre>String[] names = {\"Alice\", \"Bob\", \"Carol\"};\nString namesString = String.join(\",\", names);\nSystem.out.println(namesString); \/\/ \u8f93\u51fa\uff1aAlice,Bob,Carol<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528 Java 8+ \u6d41\u5f0f API<\/strong><\/p>\n<p>Java 8 \u5f15\u5165\u4e86\u6d41\u5f0f API\uff0c\u53ef\u4ee5\u66f4\u7b80\u6d01\u5730\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1a<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nString numbersString = IntStream.of(numbers).mapToObj(String::valueOf).collect(Collectors.joining(\", \"));\nSystem.out.println(numbersString); \/\/ \u8f93\u51fa\uff1a1, 2, 3, 4, 5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u9009\u62e9\u65b9\u6cd5\u7684\u5efa\u8bae\uff1a<\/strong><\/p>\n<ul>\n<li>\u5bf9\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff0c\u4f7f\u7528 Arrays.toString()\u3002<\/li>\n<li>\u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\u6216\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4\uff0c\u4f7f\u7528 StringBuilder \u6216 Java 8+ \u6d41\u5f0f API\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u4ee3\u7801\u590d\u6742\u6027\u3002<\/li>\n<li>\u5bf9\u4e8e JDK 8 \u53ca\u66f4\u9ad8\u7248\u672c\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528 String.join().<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u628a\u6570\u7ec4\u53d8\u6210\u5b57\u7b26\u4e32java\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\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7684\u51e0\u79cd\u65b9\u6cd5\u5305\u62ec\uff1a\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u4f7f\u7528 arrays.tostring()\uff0c\u5bf9\u8c61\u6570\u7ec4\u6216\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4\u4f7f\u7528 stringbuilder\uff0cjdk 8+ \u7248\u672c\u4f7f\u7528 string.join() \u6216 java 8+ \u6d41\u5f0f api\u3002 \u5982\u4f55\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff08Java\uff09 \u95ee\u9898\uff1a\u5982\u4f55\u5c06 Java \u4e2d\u7684\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1f \u56de\u7b54\uff1a \u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u6570\u7ec4\u7684\u7c7b\u578b\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b 1. \u4f7f\u7528 Arrays.toString()\uff08\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff09 \u5bf9\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff08\u5982 int[]\u3001double[]\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528 Arrays.toString() \u65b9\u6cd5\uff1a int[] numbers = {1, 2, 3, 4, 5}; String numbersString = Arrays.toString(numbers); System.out.println(numbersString); \/\/ \u8f93\u51fa\uff1a[1, 2, 3, 4, 5] \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 StringBuilder\uff08\u5bf9\u8c61\u6570\u7ec4\u6216\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4\uff09 \u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\u6216\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 StringBuilder\uff1a Object[] objects = [&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-66693","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66693","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=66693"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66693\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}