{"id":496,"date":"2023-11-15T00:37:38","date_gmt":"2023-06-28T01:13:43","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/java-%e5%ad%97%e7%ac%a6%e4%b8%b2-substring-%e6%96%b9%e6%b3%95%e7%a4%ba%e4%be%8b\/"},"modified":"2025-08-02T14:03:03","modified_gmt":"2025-08-02T06:03:03","slug":"java-%e5%ad%97%e7%ac%a6%e4%b8%b2-substring-%e6%96%b9%e6%b3%95%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java-%e5%ad%97%e7%ac%a6%e4%b8%b2-substring-%e6%96%b9%e6%b3%95%e7%a4%ba%e4%be%8b\/","title":{"rendered":"Java substring()\u65b9\u6cd5\u8be6\u89e3\uff1a\u5b57\u7b26\u4e32\u622a\u53d6\u7684\u5b8c\u6574\u6307\u5357"},"content":{"rendered":"

Java\u7684String substring()\u65b9\u6cd5\u8fd4\u56de\u8be5\u5b57\u7b26\u4e32\u7684\u5b50\u4e32\u3002\u8be5\u65b9\u6cd5\u59cb\u7ec8\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\uff0c\u539f\u59cb\u5b57\u7b26\u4e32\u4fdd\u6301\u4e0d\u53d8\uff0c\u56e0\u4e3aJava\u4e2d\u7684String\u662f\u4e0d\u53ef\u53d8\u7684\u3002<\/p>\n

Java\u7684String substring()\u65b9\u6cd5<\/h2>\n

Java\u7684String\u5b50\u5b57\u7b26\u4e32\u65b9\u6cd5\u662f\u91cd\u8f7d\u7684\uff0c\u5e76\u4e14\u6709\u4e24\u4e2a\u53d8\u4f53\u3002<\/p>\n

    \n
  1. substring(int beginIndex): \u6b64\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\uff0c\u5b83\u662f\u8be5\u5b57\u7b26\u4e32\u7684\u4e00\u4e2a\u5b50\u4e32\u3002\u8be5\u5b50\u4e32\u4ece\u6307\u5b9a\u7d22\u5f15\u4f4d\u7f6e\u5f00\u59cb\uff0c\u5e76\u5ef6\u4f38\u5230\u8be5\u5b57\u7b26\u4e32\u7684\u672b\u5c3e\u3002<\/li>\n
  2. substring(int beginIndex, int endIndex): \u8be5\u5b50\u4e32\u4ece\u6307\u5b9a\u7684beginIndex\u4f4d\u7f6e\u5f00\u59cb\uff0c\u5ef6\u4f38\u81f3endIndex – 1\u7684\u5b57\u7b26\u3002\u56e0\u6b64\uff0c\u5b50\u4e32\u7684\u957f\u5ea6\u4e3a(endIndex – beginIndex)\u3002<\/li>\n<\/ol>\n

    \u5b57\u7b26\u4e32 substring() \u65b9\u6cd5\u7684\u91cd\u8981\u8981\u70b9<\/h2>\n

    \u5982\u679c\u6ee1\u8db3\u4ee5\u4e0b\u4efb\u4e00\u6761\u4ef6\uff0c\u4e24\u79cd\u5b57\u7b26\u4e32\u5b50\u4e32\u65b9\u6cd5\u90fd\u53ef\u80fd\u629b\u51faIndexOutOfBoundsException\u5f02\u5e38\uff1a<\/p>\n

      \n
    • beginIndex\u4e3a\u8d1f\u6570<\/li>\n
    • endIndex\u5927\u4e8e\u6b64String\u5bf9\u8c61\u7684\u957f\u5ea6<\/li>\n
    • beginIndex\u5927\u4e8eendIndex<\/li>\n<\/ul>\n

      \u5728\u4e24\u79cd\u5b50\u4e32\u65b9\u6cd5\u4e2d\uff0cbeginIndex\u662f\u5305\u542b\u7684\uff0c\u800cendIndex\u662f\u6392\u9664\u7684\u3002<\/p>\n

      Java\u7684String substring()\u793a\u4f8b<\/h2>\n

      \u8fd9\u662f\u4e00\u4e2a\u7528Java\u7f16\u5199\u7684\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u622a\u53d6\u7a0b\u5e8f\u3002<\/p>\n

      package com.Olivia.util;\r\n\r\npublic class StringSubstringExample {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tString str = \"www.scdev.com\";\r\n\t\tSystem.out.println(\"\u6700\u540e4\u4e2a\u5b57\u7b26\u7684\u5b57\u7b26\u4e32: \" + str.substring(str.length() - 4));\r\n\t\tSystem.out.println(\"\u524d4\u4e2a\u5b57\u7b26\u7684\u5b57\u7b26\u4e32: \" + str.substring(0, 4));\r\n\t\tSystem.out.println(\"\u7f51\u7ad9\u540d\u79f0: \" + str.substring(4, 14));\r\n\t}\r\n}\r\n<\/code><\/pre>\n
      \u4ee5\u4e0a\u5b50\u5b57\u7b26\u4e32\u793a\u4f8b\u7a0b\u5e8f\u7684\u8f93\u51fa\u7ed3\u679c\u662f\uff1a<\/p>\n
      \u6700\u540e4\u4e2a\u5b57\u7b26\u7684\u5b57\u7b26\u4e32: .com\r\n\u524d4\u4e2a\u5b57\u7b26\u7684\u5b57\u7b26\u4e32: www.\r\n\u7f51\u7ad9\u540d\u79f0: scdev\r\n<\/code><\/pre>\n
      \u4f7f\u7528substring()\u65b9\u6cd5\u68c0\u67e5\u56de\u6587<\/h2>\n
      \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528substring()\u65b9\u6cd5\u6765\u68c0\u67e5\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u662f\u56de\u6587\u3002<\/p>\n
      package com.Olivia.util;\r\n\r\npublic class StringPalindromeTest {\r\n\tpublic static void main(String[] args) {\r\n\t\tSystem.out.println(checkPalindrome(\"abcba\"));\r\n\t\tSystem.out.println(checkPalindrome(\"XYyx\"));\r\n\t\tSystem.out.println(checkPalindrome(\"871232178\"));\r\n\t\tSystem.out.println(checkPalindrome(\"CCCCC\"));\r\n\t}\r\n\r\n\tprivate static boolean checkPalindrome(String str) {\r\n\t\tif (str == null)\r\n\t\t\treturn false;\r\n\t\tif (str.length() <= 1) {\r\n\t\t\treturn true;\r\n\t\t}\r\n\t\tString first = str.substring(0, 1);\r\n\t\tString last = str.substring(str.length() - 1);\r\n\t\tif (!first.equals(last))\r\n\t\t\treturn false;\r\n\t\telse\r\n\t\t\treturn checkPalindrome(str.substring(1, str.length() - 1));\r\n\t}\r\n}\r\n<\/code><\/pre>\n
      \u5728\u8fd9\u91cc\u6211\u4eec\u6b63\u5728\u68c0\u67e5\u7b2c\u4e00\u4e2a\u5b57\u6bcd\u548c\u6700\u540e\u4e00\u4e2a\u5b57\u6bcd\u662f\u5426\u76f8\u540c\u3002\u5982\u679c\u4e0d\u76f8\u540c\uff0c\u8fd4\u56defalse\u3002\u5426\u5219\uff0c\u9012\u5f52\u8c03\u7528\u8be5\u65b9\u6cd5\uff0c\u4f20\u9012\u53bb\u6389\u7b2c\u4e00\u4e2a\u548c\u6700\u540e\u4e00\u4e2a\u5b57\u6bcd\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/p>\n
      \u60a8\u53ef\u4ee5\u4ece\u6211\u4eec\u7684GitHub\u4ed3\u5e93\u4e2d\u67e5\u770b\u66f4\u591a\u7684\u5b57\u7b26\u4e32\u793a\u4f8b\u3002<\/p>\n
      \u53c2\u8003\u8d44\u6599\uff1aOracle API \u6587\u6863<\/p>\n","protected":false},"excerpt":{"rendered":"
      Java\u7684String substring()\u65b9\u6cd5\u8fd4\u56de\u8be5\u5b57\u7b26\u4e32\u7684\u5b50\u4e32\u3002\u8be5\u65b9\u6cd5\u59cb\u7ec8\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\uff0c\u539f\u59cb\u5b57\u7b26\u4e32 […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[189,183,180,1493,181],"class_list":{"0":"post-496","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"tag-java","10":"tag-substring","11":"tag-181"},"yoast_head":"\nJava substring()\u65b9\u6cd5\u8be6\u89e3\uff1a\u5b57\u7b26\u4e32\u622a\u53d6\u7684\u5b8c\u6574\u6307\u5357 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u672c\u6587\u8be6\u7ec6\u89e3\u6790Java\u5b57\u7b26\u4e32substring()\u65b9\u6cd5\u7684\u7528\u6cd5\u3001\u53c2\u6570\u548c\u8fd4\u56de\u503c\uff0c\u901a\u8fc7\u591a\u4e2a\u5b9e\u4f8b\u4ee3\u7801\u6f14\u793a\u5982\u4f55\u5728Java\u7a0b\u5e8f\u4e2d\u6b63\u786e\u4f7f\u7528substring()\u8fdb\u884c\u5b57\u7b26\u4e32\u622a\u53d6\u64cd\u4f5c\uff0c\u5e2e\u52a9Java\u5f00\u53d1\u8005\u638c\u63e1\u8fd9\u4e00\u91cd\u8981\u7684\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\/java-\u5b57\u7b26\u4e32-substring-\u65b9\u6cd5\u793a\u4f8b\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java substring()\u65b9\u6cd5\u8be6\u89e3\uff1a\u5b57\u7b26\u4e32\u622a\u53d6\u7684\u5b8c\u6574\u6307\u5357\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6587\u8be6\u7ec6\u89e3\u6790Java\u5b57\u7b26\u4e32substring()\u65b9\u6cd5\u7684\u7528\u6cd5\u3001\u53c2\u6570\u548c\u8fd4\u56de\u503c\uff0c\u901a\u8fc7\u591a\u4e2a\u5b9e\u4f8b\u4ee3\u7801\u6f14\u793a\u5982\u4f55\u5728Java\u7a0b\u5e8f\u4e2d\u6b63\u786e\u4f7f\u7528substring()\u8fdb\u884c\u5b57\u7b26\u4e32\u622a\u53d6\u64cd\u4f5c\uff0c\u5e2e\u52a9Java\u5f00\u53d1\u8005\u638c\u63e1\u8fd9\u4e00\u91cd\u8981\u7684\u5b57\u7b26\u4e32\u5904\u7406\u6280\u5de7\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/java-\u5b57\u7b26\u4e32-substring-\u65b9\u6cd5\u793a\u4f8b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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