{"id":532,"date":"2023-11-29T07:02:49","date_gmt":"2023-03-06T02:33:16","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%b0%86%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%bd%ac%e6%8d%a2%e4%b8%ba%e5%ad%97%e7%ac%a6%e6%95%b0%e7%bb%84%e7%9a%84java%e6%96%b9%e6%b3%95%e3%80%82\/"},"modified":"2025-08-02T16:17:58","modified_gmt":"2025-08-02T08:17:58","slug":"%e5%b0%86%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%bd%ac%e6%8d%a2%e4%b8%ba%e5%ad%97%e7%ac%a6%e6%95%b0%e7%bb%84%e7%9a%84java%e6%96%b9%e6%b3%95%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%86%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%bd%ac%e6%8d%a2%e4%b8%ba%e5%ad%97%e7%ac%a6%e6%95%b0%e7%bb%84%e7%9a%84java%e6%96%b9%e6%b3%95%e3%80%82\/","title":{"rendered":"Java\u5b57\u7b26\u4e32\u8f6c\u5b57\u7b26\u6570\u7ec4\uff1a5\u79cd\u5b9e\u73b0\u65b9\u6cd5\u8be6\u89e3\u4e0e\u5b9e\u4f8b\u6559\u7a0b"},"content":{"rendered":"

\u6709\u65f6\u6211\u4eec\u9700\u8981\u5728Java\u7a0b\u5e8f\u4e2d\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\uff0c\u6216\u8005\u83b7\u53d6\u5b57\u7b26\u4e32\u4e2d\u7279\u5b9a\u7d22\u5f15\u4f4d\u7f6e\u7684\u5b57\u7b26\u3002<\/p>\n

Java\u4e2d\u7684\u5b57\u7b26\u4e32\u8f6c\u4e3a\u5b57\u7b26<\/h2>\n

String\u7c7b\u6709\u4e09\u4e2a\u4e0e\u5b57\u7b26\u76f8\u5173\u7684\u65b9\u6cd5\u3002\u5728\u6211\u4eec\u67e5\u770b\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u7684Java\u7a0b\u5e8f\u4e4b\u524d\uff0c\u8ba9\u6211\u4eec\u5148\u6765\u770b\u770b\u5b83\u4eec\u3002<\/p>\n

    \n
  1. toCharArray()\u65b9\u6cd5\uff1a<\/strong>\u6b64\u65b9\u6cd5\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u3002\u5b57\u7b26\u6570\u7ec4\u7684\u5927\u5c0f\u4e0e\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u76f8\u540c\u3002<\/li>\n
  2. charAt(int index)\u65b9\u6cd5\uff1a<\/strong>\u6b64\u65b9\u6cd5\u8fd4\u56de\u5b57\u7b26\u4e32\u4e2d\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u5b57\u7b26\u3002\u5982\u679c\u7d22\u5f15\u53c2\u6570\u503c\u4e3a\u8d1f\u6570\u6216\u5927\u4e8e\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff0c\u5219\u6b64\u65b9\u6cd5\u4f1a\u629b\u51faStringIndexOutOfBoundsException<\/code>\u5f02\u5e38\u3002<\/li>\n
  3. getChars(int srcBegin, int srcEnd, char dst[], int dstBegin)\u65b9\u6cd5\uff1a<\/strong>\u5f53\u60a8\u60f3\u8981\u5c06\u5b57\u7b26\u4e32\u7684\u90e8\u5206\u5185\u5bb9\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u65f6\uff0c\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u6709\u7528\u7684\u65b9\u6cd5\u3002\u524d\u4e24\u4e2a\u53c2\u6570\u5b9a\u4e49\u4e86\u5b57\u7b26\u4e32\u7684\u8d77\u59cb\u548c\u7ed3\u675f\u7d22\u5f15\uff1b\u6700\u540e\u8981\u590d\u5236\u7684\u5b57\u7b26\u4f4d\u4e8e\u7d22\u5f15srcEnd-1\u5904\u3002\u5b57\u7b26\u88ab\u590d\u5236\u5230\u4ee5\u7d22\u5f15dstBegin\u5f00\u59cb\u5e76\u4ee5dstBegin + (srcEnd-srcBegin) – 1\u7ed3\u675f\u7684\u5b57\u7b26\u6570\u7ec4\u4e2d\u3002<\/li>\n<\/ol>\n

    \u8ba9\u6211\u4eec\u770b\u4e00\u4e2a\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u8f6c\u5b57\u7b26\u6570\u7ec4\u7684Java\u7a0b\u5e8f\u793a\u4f8b\u3002<\/p>\n

    package com.Olivia.string;\r\n\r\npublic class StringToCharJava {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tString str = \"scdev\";\r\n\t\t\r\n\t\t\/\/ \u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\r\n\t\tchar[] chars = str.toCharArray();\r\n\t\tSystem.out.println(chars.length);\r\n\t\t\r\n\t\t\/\/ \u83b7\u53d6\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u5b57\u7b26\r\n\t\tchar c = str.charAt(2);\r\n\t\tSystem.out.println(c);\r\n\t\t\r\n\t\t\/\/ \u5c06\u5b57\u7b26\u4e32\u5b57\u7b26\u590d\u5236\u5230\u5b57\u7b26\u6570\u7ec4\r\n\t\tchar[] chars1 = new char[7];\r\n\t\tstr.getChars(0, 7, chars1, 0);\r\n\t\tSystem.out.println(chars1);\r\n\t\t\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
    \u5728\u4e0a\u8ff0\u7a0b\u5e8f\u4e2d\uff0ctoCharArray()<\/code>\u548ccharAt()<\/code>\u7684\u4f7f\u7528\u975e\u5e38\u7b80\u5355\u660e\u4e86\u3002\u5728getChars()<\/code>\u793a\u4f8b\u4e2d\uff0c\u5b57\u7b26\u4e32str\u7684\u524d7\u4e2a\u5b57\u7b26\u5c06\u88ab\u590d\u5236\u5230\u4ece\u7d22\u5f150\u5f00\u59cb\u7684chars1\u4e2d\u3002\u8fd9\u5c31\u662f\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u548c\u5b57\u7b26\u7684Java\u7a0b\u5e8f\u7684\u5168\u90e8\u5185\u5bb9\u3002\u53c2\u8003\uff1aAPI\u6587\u6863\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u6709\u65f6\u6211\u4eec\u9700\u8981\u5728Java\u7a0b\u5e8f\u4e2d\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\uff0c\u6216\u8005\u83b7\u53d6\u5b57\u7b26\u4e32\u4e2d\u7279\u5b9a\u7d22\u5f15\u4f4d\u7f6e\u7684\u5b57\u7b26\u3002 Java\u4e2d\u7684\u5b57\u7b26\u4e32\u8f6c […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[225,180,181,1576,184],"class_list":{"0":"post-532","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"tag-java","9":"tag-181","10":"tag-1576","11":"tag-184"},"yoast_head":"\nJava\u5b57\u7b26\u4e32\u8f6c\u5b57\u7b26\u6570\u7ec4\uff1a5\u79cd\u5b9e\u73b0\u65b9\u6cd5\u8be6\u89e3\u4e0e\u5b9e\u4f8b\u6559\u7a0b - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u8be6\u7ec6\u4ecb\u7ecdJava\u4e2d\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ectoCharArray()\u65b9\u6cd5\u3001\u5b57\u7b26\u904d\u5386\u7b49\u5b9e\u73b0\u65b9\u5f0f\uff0c\u9644\u5e26\u4ee3\u7801\u5b9e\u4f8b\u548c\u6027\u80fd\u5206\u6790\uff0c\u5e2e\u52a9Java\u5f00\u53d1\u8005\u638c\u63e1\u5b57\u7b26\u4e32\u5904\u7406\u6280\u5de7\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u7684java\u65b9\u6cd5\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u5b57\u7b26\u4e32\u8f6c\u5b57\u7b26\u6570\u7ec4\uff1a5\u79cd\u5b9e\u73b0\u65b9\u6cd5\u8be6\u89e3\u4e0e\u5b9e\u4f8b\u6559\u7a0b\" \/>\n<meta property=\"og:description\" content=\"\u8be6\u7ec6\u4ecb\u7ecdJava\u4e2d\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ectoCharArray()\u65b9\u6cd5\u3001\u5b57\u7b26\u904d\u5386\u7b49\u5b9e\u73b0\u65b9\u5f0f\uff0c\u9644\u5e26\u4ee3\u7801\u5b9e\u4f8b\u548c\u6027\u80fd\u5206\u6790\uff0c\u5e2e\u52a9Java\u5f00\u53d1\u8005\u638c\u63e1\u5b57\u7b26\u4e32\u5904\u7406\u6280\u5de7\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u7ec4\u7684java\u65b9\u6cd5\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-03-06T02:33:16+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-02T08:17:58+00:00\" \/>\n<meta name=\"author\" content=\"\u5b87, \u534e\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u5b87, \u534e\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%86%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%bd%ac%e6%8d%a2%e4%b8%ba%e5%ad%97%e7%ac%a6%e6%95%b0%e7%bb%84%e7%9a%84java%e6%96%b9%e6%b3%95%e3%80%82\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%86%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%bd%ac%e6%8d%a2%e4%b8%ba%e5%ad%97%e7%ac%a6%e6%95%b0%e7%bb%84%e7%9a%84java%e6%96%b9%e6%b3%95%e3%80%82\/\",\"name\":\"Java\u5b57\u7b26\u4e32\u8f6c\u5b57\u7b26\u6570\u7ec4\uff1a5\u79cd\u5b9e\u73b0\u65b9\u6cd5\u8be6\u89e3\u4e0e\u5b9e\u4f8b\u6559\u7a0b - 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