{"id":532,"date":"2023-02-04T21:07:12","date_gmt":"2022-11-08T09:39:43","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/index.php\/2023\/11\/30\/java-%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%86%e3%83%b3%e3%83%97%e3%83%ac%e3%83%bc%e3%83%88%e3%83%a1%e3%82%bd%e3%83%83%e3%83%89%e3%83%87%e3%82%b6%e3%82%a4%e3%83%b3%e3%83%91%e3%82%bf%e3%83%bc\/"},"modified":"2025-08-01T00:21:23","modified_gmt":"2025-07-31T15:21:23","slug":"java-%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%86%e3%83%b3%e3%83%97%e3%83%ac%e3%83%bc%e3%83%88%e3%83%a1%e3%82%bd%e3%83%83%e3%83%89%e3%83%87%e3%82%b6%e3%82%a4%e3%83%b3%e3%83%91%e3%82%bf%e3%83%bc","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java-%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%86%e3%83%b3%e3%83%97%e3%83%ac%e3%83%bc%e3%83%88%e3%83%a1%e3%82%bd%e3%83%83%e3%83%89%e3%83%87%e3%82%b6%e3%82%a4%e3%83%b3%e3%83%91%e3%82%bf%e3%83%bc\/","title":{"rendered":"Java \u306b\u304a\u3051\u308b\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3"},"content":{"rendered":"

\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u884c\u52d5\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u306e\u30b9\u30bf\u30d6\u3092\u4f5c\u6210\u3057\u3001\u5b9f\u88c5\u306e\u4e00\u90e8\u3092\u30b5\u30d6\u30af\u30e9\u30b9\u306b\u59d4\u4efb\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3<\/h2>\n

\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u5b9f\u884c\u3059\u308b\u624b\u9806\u3092\u5b9a\u7fa9\u3057\u3001\u305d\u308c\u3092\u3059\u3079\u3066\u307e\u305f\u306f\u4e00\u90e8\u306e\u30b5\u30d6\u30af\u30e9\u30b9\u306b\u5171\u901a\u3059\u308b\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u3092\u6319\u3052\u3066\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002\u4f8b\u3048\u3070\u3001\u5bb6\u3092\u5efa\u3066\u308b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u63d0\u4f9b\u3057\u305f\u3044\u3068\u3057\u307e\u3059\u3002\u5bb6\u3092\u5efa\u3066\u308b\u305f\u3081\u306b\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u306e\u3042\u308b\u624b\u9806\u306f\u3001\u57fa\u790e\u3092\u4f5c\u308b\u3001\u67f1\u3092\u5efa\u3066\u308b\u3001\u58c1\u3084\u7a93\u3092\u5efa\u3066\u308b\u3001\u3067\u3059\u3002\u91cd\u8981\u306a\u70b9\u306f\u3001\u5b9f\u884c\u306e\u9806\u5e8f\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u57fa\u790e\u3092\u4f5c\u3089\u306a\u3044\u3068\u7a93\u3092\u5efa\u3066\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u304b\u3089\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3053\u306e\u5834\u5408\u3001\u5bb6\u3092\u5efa\u3066\u308b\u305f\u3081\u306b\u7570\u306a\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5bb6\u306e\u57fa\u790e\u3092\u4f5c\u308b\u3053\u3068\u306f\u3001\u6728\u9020\u306e\u5bb6\u3067\u3042\u308d\u3046\u3068\u3001\u30ac\u30e9\u30b9\u9020\u308a\u306e\u5bb6\u3067\u3042\u308d\u3046\u3068\u3001\u540c\u3058\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3053\u308c\u306b\u5bfe\u3057\u3066\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30b5\u30d6\u30af\u30e9\u30b9\u304c\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u5834\u5408\u306f\u53ef\u80fd\u3067\u3059\u304c\u3001\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u306f\u3059\u3079\u3066\u306e\u7a2e\u985e\u306e\u5bb6\u306b\u5171\u901a\u3067\u3059\u3002\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u3092\u30b5\u30d6\u30af\u30e9\u30b9\u304c\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u305d\u308c\u3092final\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u306e\u62bd\u8c61\u30af\u30e9\u30b9<\/h3>\n

\u30b5\u30d6\u30af\u30e9\u30b9\u306b\u3088\u3063\u3066\u5b9f\u88c5\u3055\u308c\u308b\u3044\u304f\u3064\u304b\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u5fc5\u8981\u3068\u3059\u308b\u305f\u3081\u3001\u57fa\u5e95\u30af\u30e9\u30b9\u3092\u62bd\u8c61\u30af\u30e9\u30b9\u3068\u3057\u3066\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002HouseTemplate.java<\/p>\n

package com.scdev.design.template;\r\n\r\npublic abstract class HouseTemplate {\r\n\r\n\t\/\/template method, final so subclasses can't override\r\n\tpublic final void buildHouse(){\r\n\t\tbuildFoundation();\r\n\t\tbuildPillars();\r\n\t\tbuildWalls();\r\n\t\tbuildWindows();\r\n\t\tSystem.out.println(\"House is built.\");\r\n\t}\r\n\r\n\t\/\/default implementation\r\n\tprivate void buildWindows() {\r\n\t\tSystem.out.println(\"Building Glass Windows\");\r\n\t}\r\n\r\n\t\/\/methods to be implemented by subclasses\r\n\tpublic abstract void buildWalls();\r\n\tpublic abstract void buildPillars();\r\n\r\n\tprivate void buildFoundation() {\r\n\t\tSystem.out.println(\"Building foundation with cement,iron rods and sand\");\r\n\t}\r\n}\r\n<\/code><\/pre>\n
buildHouse()\u306f\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u3067\u3042\u308a\u3001\u8907\u6570\u306e\u624b\u9806\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306e\u9806\u5e8f\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n
\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u306e\u5177\u4f53\u30af\u30e9\u30b9 (Tenpureto mesoddo no gutaikurasu)<\/h3>\n
\u79c1\u305f\u3061\u306f\u3001\u6728\u306e\u5bb6\u3084\u30ac\u30e9\u30b9\u306e\u5bb6\u306e\u3088\u3046\u306b\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u5bb6\u3092\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002WoodenHouse.java<\/p>\n
package com.scdev.design.template;\r\n\r\npublic class WoodenHouse extends HouseTemplate {\r\n\r\n\t@Override\r\n\tpublic void buildWalls() {\r\n\t\tSystem.out.println(\"Building Wooden Walls\");\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void buildPillars() {\r\n\t\tSystem.out.println(\"Building Pillars with Wood coating\");\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
\u79c1\u305f\u3061\u306f\u4ed6\u306e\u30e1\u30bd\u30c3\u30c9\u3082\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u304c\u3001\u30b7\u30f3\u30d7\u30eb\u3055\u306e\u305f\u3081\u306b\u884c\u3063\u3066\u3044\u307e\u305b\u3093\u3002GlassHouse.java<\/p>\n
package com.scdev.design.template;\r\n\r\npublic class GlassHouse extends HouseTemplate {\r\n\r\n\t@Override\r\n\tpublic void buildWalls() {\r\n\t\tSystem.out.println(\"Building Glass Walls\");\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void buildPillars() {\r\n\t\tSystem.out.println(\"Building Pillars with glass coating\");\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8<\/h3>\n
\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u306e\u4f8b\u3092\u30c6\u30b9\u30c8\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f7f\u3063\u3066\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002HousingClient.java<\/p>\n
package com.scdev.design.template;\r\n\r\npublic class HousingClient {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\t\r\n\t\tHouseTemplate houseType = new WoodenHouse();\r\n\t\t\r\n\t\t\/\/using template method\r\n\t\thouseType.buildHouse();\r\n\t\tSystem.out.println(\"************\");\r\n\t\t\r\n\t\thouseType = new GlassHouse();\r\n\t\t\r\n\t\thouseType.buildHouse();\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u30d9\u30fc\u30b9\u30af\u30e9\u30b9\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3001\u7570\u306a\u308b\u30b9\u30c6\u30c3\u30d7\u306e\u5b9f\u88c5\u306b\u5fdc\u3058\u3066\u3001\u30d9\u30fc\u30b9\u30af\u30e9\u30b9\u3068\u30b5\u30d6\u30af\u30e9\u30b9\u306e\u4e00\u90e8\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u4e0a\u8a18\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u51fa\u529b\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n
Building foundation with cement,iron rods and sand\r\nBuilding Pillars with Wood coating\r\nBuilding Wooden Walls\r\nBuilding Glass Windows\r\nHouse is built.\r\n************\r\nBuilding foundation with cement,iron rods and sand\r\nBuilding Pillars with glass coating\r\nBuilding Glass Walls\r\nBuilding Glass Windows\r\nHouse is built.\r\n<\/code><\/pre>\n
\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u306e\u30af\u30e9\u30b9\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0<\/h3>\n
JDK\u306b\u304a\u3051\u308b\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3<\/h3>\n
    \n
  • All non-abstract methods of java.io.InputStream, java.io.OutputStream, java.io.Reader and java.io.Writer.<\/li>\n
  • All non-abstract methods of java.util.AbstractList, java.util.AbstractSet and java.util.AbstractMap.<\/li>\n<\/ul>\n
    \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8<\/h3>\n
      \n
    1. \n
        \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u9806\u5e8f\u304c\u56fa\u5b9a\u3055\u308c\u3066\u3044\u308b\u7279\u5b9a\u306e\u624b\u9806\u3067\u69cb\u6210\u3055\u308c\u3001\u3044\u304f\u3064\u304b\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u5b9f\u88c5\u306f\u57fa\u5e95\u30af\u30e9\u30b9\u304b\u3089\u6d3e\u751f\u30af\u30e9\u30b9\u307e\u3067\u7570\u306a\u308a\u307e\u3059\u3002\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u306f\u6700\u7d42\u7684\u3067\u3042\u308b\u3079\u304d\u3067\u3059\u3002<\/ol>\n<\/li>\n<\/ol>\n
         <\/p>\n
          \n
        1. \n
            \u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u306f\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u304c\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u3001\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u304c\u30b5\u30d6\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u305f\u3081\u3001\u300c\u547c\u3073\u51fa\u3057\u306f\u79c1\u305f\u3061\u306b\u4efb\u305b\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u3044\u3046\u8003\u3048\u65b9\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u30cf\u30ea\u30a6\u30c3\u30c9\u306e\u539f\u5247\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/ol>\n<\/li>\n<\/ol>\n
             <\/p>\n
              \u57fa\u672c\u30af\u30e9\u30b9\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\u3092\u6301\u3064\u30e1\u30bd\u30c3\u30c9\u306f\u30d5\u30c3\u30af\u3068\u547c\u3070\u308c\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u306b\u3088\u3063\u3066\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u3053\u3068\u304c\u610f\u56f3\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4e00\u90e8\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u5834\u5408\u306f\u3001\u305d\u308c\u3089\u3092\u6700\u7d42\u7684\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u79c1\u305f\u3061\u306e\u5834\u5408\u3067\u306fbuildFoundation()\u30e1\u30bd\u30c3\u30c9\u3092\u6700\u7d42\u7684\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/ol>\n
              \u3053\u308c\u3067Java\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306b\u95a2\u3059\u308b\u8aac\u660e\u306f\u7d42\u308f\u308a\u3067\u3059\u3002\u304a\u6c17\u306b\u5165\u308a\u3044\u305f\u3060\u3051\u305f\u3053\u3068\u3092\u9858\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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