{"id":20480,"date":"2017-03-30T20:17:18","date_gmt":"2017-03-30T11:17:18","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=20480"},"modified":"2024-05-06T11:41:11","modified_gmt":"2024-05-06T02:41:11","slug":"%e3%80%90java%e5%85%a5%e9%96%80%e3%80%91file%e3%81%ae%e5%89%8a%e9%99%a4%e6%96%b9%e6%b3%95%ef%bc%88delete%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/20480","title":{"rendered":"\u3010Java\u5165\u9580\u3011file\u30fbdirectory\u306e\u524a\u9664\u3067\u5931\u6557\u3057\u306a\u3044\u65b9\u6cd5(delete)"},"content":{"rendered":"

Java\u306eFile<\/strong><\/span>\u30af\u30e9\u30b9\u306b\u306f\u30d5\u30a1\u30a4\u30eb\u3084\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u524a\u9664\u3092\u884c\u3046delete<\/strong><\/span>\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001delete<\/strong><\/span>\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066<\/p>\n

\u30fbdelete\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5<\/strong><\/span>
\n\u30fb\u30d5\u30a1\u30a4\u30eb\u524a\u9664\u306b\u5931\u6557\u3057\u3066\u3044\u306a\u3044\u304b\u306e\u78ba\u8a8d\u65b9\u6cd5<\/strong><\/span><\/p>\n

\u3068\u3044\u3046\u57fa\u672c\u7684\u306a\u5185\u5bb9\u304b\u3089\u3001<\/p>\n

\u30fbdelete\u3067\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5<\/strong><\/span>
\n\u30fb\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u524a\u9664\u306b\u5931\u6557\u3057\u306a\u3044\u65b9\u6cd5<\/strong><\/span><\/p>\n

\u306a\u3069\u306e\u5fdc\u7528\u7684\u306a\u5185\u5bb9\u306b\u95a2\u3057\u3066\u3082\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

\u4eca\u56de\u306f\u305d\u3093\u306adelete\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u3001\u3055\u307e\u3056\u307e\u306a\u65b9\u6cd5\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\uff01<\/p>\n

\u306a\u304a\u3001Java\u306e\u8a18\u4e8b\u306b\u3064\u3044\u3066\u306f\u3001\u3053\u3061\u3089<\/a>\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n

delete\u3068\u306f<\/h2>\n

File<\/strong><\/span>\u30af\u30e9\u30b9\u306edelete<\/strong><\/span>\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u6307\u5b9a\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664<\/strong><\/span>\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n

delete\u30e1\u30bd\u30c3\u30c9\u306f\u3001boolean<\/strong><\/span>\u578b\u306e\u5024\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n

public boolean delete()<\/pre>\n
\u6ce8\u610f\u70b9\u3068\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u306e\u524a\u9664\u51e6\u7406\u306f\u3001\u5b9f\u884c\u3057\u3066\u3057\u307e\u3046\u3068\u53d6\u308a\u6d88\u3057\u64cd\u4f5c\u306f\u3067\u304d\u307e\u305b\u3093<\/strong><\/span>\u306e\u3067\u3001\u614e\u91cd\u306b\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5(delete\u306e\u4f7f\u3044\u65b9)<\/h2>\n
\u4ee5\u4e0b\u306bdelete\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u305f\u3001\u30d5\u30a1\u30a4\u30eb\u524a\u9664\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n
\u306a\u304a\u3001File\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u306b\u306fjava.io.File<\/strong><\/span>\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
import java.io.File;\r\nimport java.io.IOException;\r\n\r\npublic class Main {\r\n \r\n    public static void main(String[] args) {\r\n        \r\n        File file = new File(\"\/Users\/Shared\/java\/java.txt\");\r\n        \r\n        \/\/delete\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664\u3059\u308b\r\n        file.delete();        \r\n    }\r\n \r\n}<\/pre>\n
\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001File\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u5f15\u6570\u306b\u524a\u9664\u5bfe\u8c61\u306e\u30d5\u30a1\u30a4\u30eb”\/Users\/Shared\/java\/java.txt\u201d\u3092\u6307\u5b9a\u3057\u3001delete\u30e1\u30bd\u30c3\u30c9\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u30d5\u30a1\u30a4\u30eb\u306e\u5b58\u5728\u6709\u7121\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5<\/h3>\n
\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664\u3059\u308b\u524d\u306b\u524a\u9664\u5bfe\u8c61\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3059\u308b\u304b\u78ba\u8a8d<\/strong><\/span>\u3059\u308b\u5834\u5408\u306f\u3001File\u30af\u30e9\u30b9\u306eexists<\/strong><\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
\u30d5\u30a1\u30a4\u30eb\u306e\u5b58\u5728\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n            \n                
\n                
\n                    
\n                    \n                    <\/div>\n                    
\n                    
\u3010\u901f\u7fd2Java\u3011File\u30af\u30e9\u30b9\u306eexists\u3067\u30d5\u30a1\u30a4\u30eb\u306e\u5b58\u5728\u30c1\u30a7\u30c3\u30af<\/div>\n                    
\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n
\u30d5\u30a1\u30a4\u30eb\u524a\u9664\u306b\u5931\u6557\u3057\u3066\u3044\u306a\u3044\u304b\u306e\u78ba\u8a8d\u65b9\u6cd5<\/h2>\n
delete\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u305f\u3060\u5b9f\u884c\u3057\u305f\u3060\u3051\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u524a\u9664\u306b\u6210\u529f\u3057\u305f\u304b\u308f\u304b\u308a\u307e\u305b\u3093<\/strong><\/span>\u3002<\/p>\n
\u524d\u8ff0\u3057\u305f\u3088\u3046\u306bdelete\u30e1\u30bd\u30c3\u30c9\u306fboolean\u578b\u306e\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u306e\u3067\u3001if\u6587\u306e\u4e2d\u3067delete\u51e6\u7406\u3092\u8a18\u8ff0<\/strong><\/span>\u3059\u308c\u3070\u3001\u30d5\u30a1\u30a4\u30eb\u524a\u9664\u306b\u6210\u529f\u3057\u305f\u304b\u5224\u65ad\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
import java.io.File;\r\n\r\npublic class Main {\r\n \r\n    public static void main(String[] args) {\r\n        \r\n        File file = new File(\"\/Users\/Shared\/java\/java.txt\");\r\n \r\n        \/\/exists\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u306e\u5b58\u5728\u3092\u300c\u78ba\u8a8d\u3059\u308b\r\n        if (file.exists()) {\r\n            \/\/delete\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664\u3059\u308b\r\n            if (file.delete()) {\r\n                System.out.println(\"\u30d5\u30a1\u30a4\u30eb\u524a\u9664\u6210\u529f\");\r\n            } else {\r\n                System.out.println(\"\u30d5\u30a1\u30a4\u30eb\u524a\u9664\u5931\u6557\");\r\n            }\r\n        } else {\r\n            System.out.println(\"\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3057\u306a\u3044\");\r\n        }\r\n    }\r\n \r\n}<\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n
\u30d5\u30a1\u30a4\u30eb\u524a\u9664\u6210\u529f<\/pre>\n
\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001if\u6587\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u524a\u9664\u306e\u5224\u5b9a\u53ef\u5426<\/strong><\/span>\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001File<\/strong><\/span>\u30af\u30e9\u30b9\u306eexists<\/strong><\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308c\u3070\u3001\u4e8b\u524d\u306b\u5bfe\u8c61\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3059\u308b\u304b\u78ba\u8a8d<\/strong><\/span>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5<\/h2>\n
\u30d5\u30a1\u30a4\u30eb\u3067\u306f\u306a\u304f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u524a\u9664<\/strong><\/span>\u3059\u308b\u5834\u5408\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u524a\u9664\u3068\u540c\u3058\u304fdelete<\/strong><\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u524a\u9664\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u524a\u9664\u6642\u306f\u3001File\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u5f15\u6570\u306b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30d1\u30b9\u3092\u6307\u5b9a<\/strong><\/span>\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n
File dir = new File(\"\/Users\/Shared\/java\");\r\ndir.delete();<\/pre>\n
\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u524a\u9664\u306b\u5931\u6557\u3057\u306a\u3044\u65b9\u6cd5<\/h2>\n
\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u524a\u9664\u3059\u308b\u5834\u5408\u306e\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001\u524a\u9664\u5bfe\u8c61\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u30b5\u30d6\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3084\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3059\u308b\u3068\u3001\u524a\u9664\u304c\u5931\u6557<\/strong><\/span>\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n
\u305d\u306e\u305f\u3081\u3001\u5bfe\u8c61\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u5b8c\u5168\u306b\u524a\u9664\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u307e\u305a\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u914d\u4e0b\u306e\u30d5\u30a1\u30a4\u30eb\u3084\u30b5\u30d6\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u78ba\u8a8d<\/strong><\/span>\u3057\u307e\u3059\u3002<\/p>\n
\u305d\u3057\u3066\u5b58\u5728\u3059\u308b\u5834\u5408\u306f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u306e\u30d5\u30a1\u30a4\u30eb\u3084\u30b5\u30d6\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u5148\u306b\u524a\u9664<\/strong><\/span>\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u4ee5\u4e0b\u306b\u6307\u5b9a\u3057\u305f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u3001\u5b8c\u5168\u306b\u524a\u9664\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n
import java.io.File;\r\n\r\nclass fileClass{\r\n    public static void fileClass(File TestFile) {\r\n        \r\n        if (TestFile.exists()) {\r\n            \r\n            \/\/\u30d5\u30a1\u30a4\u30eb\u5b58\u5728\u30c1\u30a7\u30c3\u30af\r\n            if (TestFile.isFile()) {\r\n                \/\/\u5b58\u5728\u3057\u305f\u3089\u524a\u9664\u3059\u308b\r\n                if (TestFile.delete()) {\r\n                    System.out.println(\"\u30d5\u30a1\u30a4\u30eb\u524a\u9664\");\r\n                }\r\n            \/\/\u5bfe\u8c61\u304c\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u5834\u5408\r\n            } else if(TestFile.isDirectory()) {\r\n                \r\n                \/\/\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u306e\u4e00\u89a7\u3092\u53d6\u5f97\r\n                File[] files = TestFile.listFiles();\r\n                \r\n                \/\/\u5b58\u5728\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u6570\u5206\u30eb\u30fc\u30d7\u3057\u3066\u518d\u5e30\u7684\u306b\u524a\u9664\r\n                for(int i=0; i<files.length; i++) {\r\n                    fileClass(files[i]);\r\n                }\r\n                \r\n                \/\/\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u524a\u9664\u3059\u308b\r\n                if (TestFile.delete()) {\r\n                    System.out.println(\"\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u524a\u9664\u6210\u529f\");\r\n                }else{\r\n                    System.out.println(\"\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u524a\u9664\u5931\u6557\");\r\n                }\r\n            }\r\n        } else {\r\n            System.out.println(\"\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u5b58\u5728\u3057\u306a\u3044\");\r\n        }\r\n    }\r\n}\r\n\r\npublic class Main {\r\n \r\n    public static void main(String[] args) {\r\n        \r\n        \/\/\u524a\u9664\u5bfe\u8c61\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u6307\u5b9a\u3059\u308b\r\n        File dir = new File(\"\/Users\/Shared\/java\/\");\r\n \r\n        fileClass.fileClass(dir);\r\n    }\r\n \r\n}<\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n
\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u524a\u9664\u6210\u529f<\/pre>\n
\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001fileClass.java\u3088\u308aFile\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3067\u3001\u524a\u9664\u5bfe\u8c61\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u6307\u5b9a\u3057\u3001fileClass\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u547c\u3073\u51fa\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
fileClass\u30af\u30e9\u30b9\u3067\u306f\u3001\u307e\u305aFile\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6307\u5b9a\u3057\u3066\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30fb\u30d5\u30a1\u30a4\u30eb\u5b58\u5728\u30c1\u30a7\u30c3\u30af\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
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\u3010Java\u5165\u9580\u3011File\u306e\u524a\u9664(delete\u3001\u5f37\u5236\u524a\u9664\u3001\u62e1\u5f35\u5b50\u306e\u6307\u5b9a)<\/div>\n                    
\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n
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Java\u306eFile\u30af\u30e9\u30b9\u3092\u30de\u30b9\u30bf\u30fc\uff01\u57fa\u790e\u304b\u3089\u4fbf\u5229\u306a\u4f7f\u3044\u65b9\u307e\u3067\u7dcf\u307e\u3068\u3081<\/div>\n                    
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property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/sejuku2013\" \/>\n<meta property=\"article:published_time\" content=\"2017-03-30T11:17:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-06T02:41:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/03\/image-3.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"700\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u4f8d\u30c6\u30c3\u30af\u7de8\u96c6\u90e8\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@samuraijuku\" \/>\n<meta name=\"twitter:site\" content=\"@samuraijuku\" \/>\n<script type=\"application\/ld+json\" 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