{"id":65668,"date":"2025-05-03T13:28:52","date_gmt":"2025-05-03T05:28:52","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65668\/"},"modified":"2025-05-03T13:28:52","modified_gmt":"2025-05-03T05:28:52","slug":"java%e4%b8%ad%e5%ad%97%e7%ac%a6%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%88%86%e5%89%b2-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65668\/","title":{"rendered":"java\u4e2d\u5b57\u7b26\u6570\u7ec4\u600e\u4e48\u5206\u5272"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5206\u5272\u5b57\u7b26\u6570\u7ec4\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528 substring() \u65b9\u6cd5\u6765\u63d0\u53d6\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5b50\u6570\u7ec4\u3002\u4f7f\u7528 arrays.copyofrange() \u65b9\u6cd5\u590d\u5236\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5143\u7d20\u4e3a\u5b50\u6570\u7ec4\u3002\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5206\u5272\u5b57\u7b26\u4e32\uff0c\u518d\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u3002\u4f7f\u7528\u5faa\u73af\u624b\u52a8\u5206\u5272\u5b57\u7b26\u6570\u7ec4\uff0c\u6839\u636e\u5206\u9694\u7b26\u8fdb\u884c\u622a\u53d6\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111306571824447.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u5b57\u7b26\u6570\u7ec4\u600e\u4e48\u5206\u5272\u63d2\u56fe\" alt=\"java\u4e2d\u5b57\u7b26\u6570\u7ec4\u600e\u4e48\u5206\u5272\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5206\u5272\u5b57\u7b26\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\u6765\u5206\u5272\u5b57\u7b26\u6570\u7ec4\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 substring() \u65b9\u6cd5<\/strong><\/p>\n<p>substring() \u65b9\u6cd5\u4ece\u6307\u5b9a\u7684\u5f00\u59cb\u548c\u7ed3\u675f\u7d22\u5f15\uff08\u4e0d\u5305\u62ec\u7ed3\u675f\u7d22\u5f15\uff09\u4e2d\u63d0\u53d6\u5b57\u7b26\u4e32\u7684\u4e00\u90e8\u5206\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u4ece\u5b57\u7b26\u6570\u7ec4\u4e2d\u63d0\u53d6\u5b50\u6570\u7ec4\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>char[] chars = \"Hello World\".toCharArray();\nchar[] subArray = chars.substring(0, 5); \/\/ [\"H\", \"e\", \"l\", \"l\", \"o\"]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.copyOfRange() \u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.copyOfRange() \u65b9\u6cd5\u521b\u5efa\u6307\u5b9a\u8303\u56f4\u5185\u5143\u7d20\u7684\u526f\u672c\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u4ece\u5b57\u7b26\u6570\u7ec4\u4e2d\u63d0\u53d6\u5b50\u6570\u7ec4\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>char[] chars = \"Hello World\".toCharArray();\nchar[] subArray = Arrays.copyOfRange(chars, 0, 5); \/\/ [\"H\", \"e\", \"l\", \"l\", \"o\"]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f<\/strong><\/p>\n<p>\u6b63\u5219\u8868\u8fbe\u5f0f\u53ef\u4ee5\u7528\u6765\u5339\u914d\u548c\u5206\u5272\u5b57\u7b26\u4e32\u3002\u8981\u4ece\u5b57\u7b26\u6570\u7ec4\u4e2d\u63d0\u53d6\u5b50\u6570\u7ec4\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 split() \u65b9\u6cd5\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>char[] chars = \"Hello,World,Java\".toCharArray();\nString[] subArrays = new String(chars).split(\",\"); \/\/ [\"Hello\", \"World\", \"Java\"]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528\u5faa\u73af<\/strong><\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u624b\u52a8\u5206\u5272\u5b57\u7b26\u6570\u7ec4\u3002\u4f8b\u5982\uff0c\u8981\u6839\u636e\u7a7a\u683c\u5206\u9694\u5b57\u7b26\u6570\u7ec4\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>char[] chars = \"Hello World Java\".toCharArray();\nint startIndex = 0;\nint endIndex = 0;\nList&lt;char[]&gt; subArrays = new ArrayList&lt;&gt;();\n\nfor (int i = 0; i &lt; chars.length; i++) {\n    if (chars[i] == ' ') {\n        endIndex = i;\n        subArrays.add(Arrays.copyOfRange(chars, startIndex, endIndex));\n        startIndex = i + 1;\n    }\n}\n\nif (startIndex &lt; chars.length) {\n    subArrays.add(Arrays.copyOfRange(chars, startIndex, chars.length));\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u5b57\u7b26\u6570\u7ec4\u600e\u4e48\u5206\u5272\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\u5206\u5272\u5b57\u7b26\u6570\u7ec4\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528 substring() \u65b9\u6cd5\u6765\u63d0\u53d6\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5b50\u6570\u7ec4\u3002\u4f7f\u7528 arrays.copyofrange() \u65b9\u6cd5\u590d\u5236\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5143\u7d20\u4e3a\u5b50\u6570\u7ec4\u3002\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5206\u5272\u5b57\u7b26\u4e32\uff0c\u518d\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u3002\u4f7f\u7528\u5faa\u73af\u624b\u52a8\u5206\u5272\u5b57\u7b26\u6570\u7ec4\uff0c\u6839\u636e\u5206\u9694\u7b26\u8fdb\u884c\u622a\u53d6\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5206\u5272\u5b57\u7b26\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\u6765\u5206\u5272\u5b57\u7b26\u6570\u7ec4\uff1a 1. \u4f7f\u7528 substring() \u65b9\u6cd5 substring() \u65b9\u6cd5\u4ece\u6307\u5b9a\u7684\u5f00\u59cb\u548c\u7ed3\u675f\u7d22\u5f15\uff08\u4e0d\u5305\u62ec\u7ed3\u675f\u7d22\u5f15\uff09\u4e2d\u63d0\u53d6\u5b57\u7b26\u4e32\u7684\u4e00\u90e8\u5206\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u4ece\u5b57\u7b26\u6570\u7ec4\u4e2d\u63d0\u53d6\u5b50\u6570\u7ec4\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b char[] chars = &#8220;Hello World&#8221;.toCharArray(); char[] subArray = chars.substring(0, 5); \/\/ [&#8220;H&#8221;, &#8220;e&#8221;, &#8220;l&#8221;, &#8220;l&#8221;, &#8220;o&#8221;] \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Arrays.copyOfRange() \u65b9\u6cd5 Arrays.copyOfRange() \u65b9\u6cd5\u521b\u5efa\u6307\u5b9a\u8303\u56f4\u5185\u5143\u7d20\u7684\u526f\u672c\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u4ece\u5b57\u7b26\u6570\u7ec4\u4e2d\u63d0\u53d6\u5b50\u6570\u7ec4\u3002\u4f8b\u5982\uff1a char[] chars = &#8220;Hello World&#8221;.toCharArray(); char[] subArray = Arrays.copyOfRange(chars, 0, 5); \/\/ [&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-65668","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65668","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=65668"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65668\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}