{"id":781,"date":"2022-12-20T01:45:50","date_gmt":"2023-12-09T16:07:33","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/index.php\/2023\/11\/30\/java%e3%81%a7%e6%96%87%e5%ad%97%e5%88%97%e3%82%92%e6%96%87%e5%ad%97%e3%81%ae%e9%85%8d%e5%88%97%e3%81%ab%e5%a4%89%e6%8f%9b%e3%81%99%e3%82%8b%e3%80%82\/"},"modified":"2025-08-01T02:25:37","modified_gmt":"2025-07-31T17:25:37","slug":"java%e3%81%a7%e6%96%87%e5%ad%97%e5%88%97%e3%82%92%e6%96%87%e5%ad%97%e3%81%ae%e9%85%8d%e5%88%97%e3%81%ab%e5%a4%89%e6%8f%9b%e3%81%99%e3%82%8b%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e6%96%87%e5%ad%97%e5%88%97%e3%82%92%e6%96%87%e5%ad%97%e3%81%ae%e9%85%8d%e5%88%97%e3%81%ab%e5%a4%89%e6%8f%9b%e3%81%99%e3%82%8b%e3%80%82\/","title":{"rendered":"Java\u3067\u6587\u5b57\u5217\u3092\u6587\u5b57\u306e\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u3002"},"content":{"rendered":"

\u6642\u3005\u3001Java\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u6587\u5b57\u5217\u3092\u6587\u5b57\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u306f\u3001\u7279\u5b9a\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304b\u3089\u6587\u5b57\u5217\u3092\u6587\u5b57\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

Java\u3067\u306eString\u3092char\u306b\u5909\u63db\u3059\u308b\u65b9\u6cd5<\/h2>\n

String\u30af\u30e9\u30b9\u306b\u306fchar\u306b\u95a2\u9023\u3059\u308b3\u3064\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002\u6587\u5b57\u5217\u3092char\u914d\u5217\u306b\u5909\u63db\u3059\u308bJava\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u898b\u308b\u524d\u306b\u3001\u305d\u308c\u3089\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

    \n
  1. \n
      char[] toCharArray()\uff1a\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u6587\u5b57\u5217\u3092\u6587\u5b57\u914d\u5217\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u6587\u5b57\u914d\u5217\u306e\u30b5\u30a4\u30ba\u306f\u6587\u5b57\u5217\u306e\u9577\u3055\u3068\u540c\u3058\u3067\u3059\u3002<\/ol>\n<\/li>\n<\/ol>\n

       <\/p>\n

        \n
      1. \n
          char charAt(int index)\uff1a\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u6587\u5b57\u5217\u306e\u7279\u5b9a\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306b\u3042\u308b\u6587\u5b57\u3092\u8fd4\u3057\u307e\u3059\u3002\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5f15\u6570\u306e\u5024\u304c\u8ca0\u6570\u3067\u3042\u308b\u304b\u3001\u6587\u5b57\u5217\u306e\u9577\u3055\u3088\u308a\u3082\u5927\u304d\u3044\u5834\u5408\u306f\u3001StringIndexOutOfBoundsException\u304c\u30b9\u30ed\u30fc\u3055\u308c\u307e\u3059\u3002<\/ol>\n<\/li>\n<\/ol>\n

           <\/p>\n

            getChars(int srcBegin, int srcEnd, char dst[], int dstBegin)\uff1a\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u6587\u5b57\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u5834\u5408\u306b\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002\u6700\u521d\u306e2\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u6587\u5b57\u5217\u306e\u958b\u59cb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3068\u7d42\u4e86\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u30b3\u30d4\u30fc\u3055\u308c\u308b\u6700\u5f8c\u306e\u6587\u5b57\u306f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9srcEnd-1\u306b\u3042\u308a\u307e\u3059\u3002\u6587\u5b57\u306fchar\u914d\u5217\u306b\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9dstBegin\u304b\u3089dstBegin + (srcEnd-srcBegin) – 1\u307e\u3067\u30b3\u30d4\u30fc\u3055\u308c\u307e\u3059\u3002<\/ol>\n

            \u30b7\u30f3\u30d7\u30eb\u306a\u6587\u5b57\u5217\u304b\u3089char\u914d\u5217\u306b\u5909\u63db\u3059\u308bJava\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

            package com.scdev.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\/\/string to char array\r\n\t\tchar[] chars = str.toCharArray();\r\n\t\tSystem.out.println(chars.length);\r\n\t\t\r\n\t\t\/\/char at specific index\r\n\t\tchar c = str.charAt(2);\r\n\t\tSystem.out.println(c);\r\n\t\t\r\n\t\t\/\/Copy string characters to char array\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
            \u4e0a\u8a18\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3001toCharArray\u3068charAt\u306e\u4f7f\u7528\u6cd5\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u660e\u78ba\u3067\u3059\u3002getChars\u306e\u4f8b\u3067\u306f\u3001str\u306e\u6700\u521d\u306e7\u6587\u5b57\u304c\u305d\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b90\u304b\u3089\u59cb\u307e\u308bchars1\u306b\u30b3\u30d4\u30fc\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3067\u3001\u6587\u5b57\u5217\u3092\u6587\u5b57\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u305f\u3081\u306eJava\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u5b8c\u4e86\u3067\u3059\u3002\u53c2\u7167\uff1aAPI\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u6642\u3005\u3001Java\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u6587\u5b57\u5217\u3092\u6587\u5b57\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u306f\u3001\u7279\u5b9a\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304b\u3089\u6587\u5b57\u5217\u3092\u6587\u5b57\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 Java\u3067\u306eString\u3092char\u306b\u5909\u63db\u3059\u308b\u65b9\u6cd5 String\u30af\u30e9\u30b9\u306b\u306fchar\u306b […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-781","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"\nJava\u3067\u6587\u5b57\u5217\u3092\u6587\u5b57\u306e\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u3002 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Java\u3067\u6587\u5b57\u5217\u3092\u6587\u5b57\u306e\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\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\/ja\/blog\/java\u3067\u6587\u5b57\u5217\u3092\u6587\u5b57\u306e\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u3067\u6587\u5b57\u5217\u3092\u6587\u5b57\u306e\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u3002\" \/>\n<meta property=\"og:description\" content=\"Java\u3067\u6587\u5b57\u5217\u3092\u6587\u5b57\u306e\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u3067\u6587\u5b57\u5217\u3092\u6587\u5b57\u306e\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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