{"id":833,"date":"2023-09-13T09:18:02","date_gmt":"2022-07-13T05:40:24","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%97%e3%83%ad%e3%83%88%e3%82%bf%e3%82%a4%e3%83%97%e3%83%87%e3%82%b6%e3%82%a4%e3%83%b3%e3%83%91%e3%82%bf%e3%83%bc%e3%83%b3%e3%80%82\/"},"modified":"2025-08-01T02:52:18","modified_gmt":"2025-07-31T17:52:18","slug":"java%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%97%e3%83%ad%e3%83%88%e3%82%bf%e3%82%a4%e3%83%97%e3%83%87%e3%82%b6%e3%82%a4%e3%83%b3%e3%83%91%e3%82%bf%e3%83%bc%e3%83%b3%e3%80%82","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%97%e3%83%ad%e3%83%88%e3%82%bf%e3%82%a4%e3%83%97%e3%83%87%e3%82%b6%e3%82%a4%e3%83%b3%e3%83%91%e3%82%bf%e3%83%bc%e3%83%b3%e3%80%82\/","title":{"rendered":"Java\u306b\u304a\u3051\u308b\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3002"},"content":{"rendered":"

\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306eCreational Design\u30d1\u30bf\u30fc\u30f3\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n

\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3<\/h2>\n

\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\u304c\u9ad8\u30b3\u30b9\u30c8\u3067\u6642\u9593\u3068\u30ea\u30bd\u30fc\u30b9\u3092\u591a\u304f\u8981\u3059\u308b\u5834\u5408\u3084\u3001\u65e2\u306b\u985e\u4f3c\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u5b58\u5728\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u5143\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u65b0\u3057\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30b3\u30d4\u30fc\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u4fee\u6b63\u3059\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u3001Java\u306e\u30af\u30ed\u30fc\u30cb\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u3066\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30b3\u30d4\u30fc\u3057\u307e\u3059\u3002<\/p>\n

\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306e\u4f8b<\/h3>\n

\u4f8b\u3092\u7528\u3044\u308c\u3070\u3001\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306f\u7c21\u5358\u306b\u7406\u89e3\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u3042\u308b\u3068\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u30c7\u30fc\u30bf\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u5185\u3067\u8907\u6570\u56de\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001new\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u518d\u5ea6\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u306e\u306f\u826f\u3044\u8003\u3048\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3088\u308a\u826f\u3044\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001\u65e2\u5b58\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30af\u30ed\u30fc\u30f3\u3057\u3066\u65b0\u3057\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3001\u305d\u306e\u5f8c\u30c7\u30fc\u30bf\u64cd\u4f5c\u3092\u884c\u3046\u3053\u3068\u3067\u3059\u3002\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u3001\u30b3\u30d4\u30fc\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u30b3\u30d4\u30fc\u6a5f\u80fd\u3092\u63d0\u4f9b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4ed6\u306e\u30af\u30e9\u30b9\u3067\u306f\u884c\u3046\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u6d45\u3044\u30b3\u30d4\u30fc\u307e\u305f\u306f\u6df1\u3044\u30b3\u30d4\u30fc\u3092\u4f7f\u7528\u3059\u308b\u304b\u306f\u3001\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u8a2d\u8a08\u4e0a\u306e\u6c7a\u5b9a\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001Java\u3067\u306e\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306e\u4f8b\u3092\u793a\u3059\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u3042\u308a\u307e\u3059\u3002Employees.java<\/p>\n

package com.scdev.design.prototype;\r\n\r\nimport java.util.ArrayList;\r\nimport java.util.List;\r\n\r\npublic class Employees implements Cloneable{\r\n\r\n\tprivate List<String> empList;\r\n\t\r\n\tpublic Employees(){\r\n\t\tempList = new ArrayList<String>();\r\n\t}\r\n\t\r\n\tpublic Employees(List<String> list){\r\n\t\tthis.empList=list;\r\n\t}\r\n\tpublic void loadData(){\r\n\t\t\/\/read all employees from database and put into the list\r\n\t\tempList.add(\"Pankaj\");\r\n\t\tempList.add(\"Raj\");\r\n\t\tempList.add(\"David\");\r\n\t\tempList.add(\"Lisa\");\r\n\t}\r\n\t\r\n\tpublic List<String> getEmpList() {\r\n\t\treturn empList;\r\n\t}\r\n\r\n\t@Override\r\n\tpublic Object clone() throws CloneNotSupportedException{\r\n\t\t\tList<String> temp = new ArrayList<String>();\r\n\t\t\tfor(String s : this.getEmpList()){\r\n\t\t\t\ttemp.add(s);\r\n\t\t\t}\r\n\t\t\treturn new Employees(temp);\r\n\t}\r\n\t\r\n}\r\n<\/code><\/pre>\n
\u5f93\u696d\u54e1\u30ea\u30b9\u30c8\u306e\u6df1\u3044\u30b3\u30d4\u30fc\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u3001clone\u30e1\u30bd\u30c3\u30c9\u304c\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306e\u5229\u70b9\u3092\u793a\u3059\u305f\u3081\u306e\u4f8b\u3068\u3057\u3066\u3001PrototypePatternTest.java\u3068\u3044\u3046\u30c6\u30b9\u30c8\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
package com.scdev.design.test;\r\n\r\nimport java.util.List;\r\n\r\nimport com.scdev.design.prototype.Employees;\r\n\r\npublic class PrototypePatternTest {\r\n\r\n\tpublic static void main(String[] args) throws CloneNotSupportedException {\r\n\t\tEmployees emps = new Employees();\r\n\t\temps.loadData();\r\n\t\t\r\n\t\t\/\/Use the clone method to get the Employee object\r\n\t\tEmployees empsNew = (Employees) emps.clone();\r\n\t\tEmployees empsNew1 = (Employees) emps.clone();\r\n\t\tList<String> list = empsNew.getEmpList();\r\n\t\tlist.add(\"John\");\r\n\t\tList<String> list1 = empsNew1.getEmpList();\r\n\t\tlist1.remove(\"Pankaj\");\r\n\t\t\r\n\t\tSystem.out.println(\"emps List: \"+emps.getEmpList());\r\n\t\tSystem.out.println(\"empsNew List: \"+list);\r\n\t\tSystem.out.println(\"empsNew1 List: \"+list1);\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
\u4e0a\u8a18\u306e\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306e\u4f8b\u984c\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u51fa\u529b\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
emps List: [Pankaj, Raj, David, Lisa]\r\nempsNew List: [Pankaj, Raj, David, Lisa, John]\r\nempsNew1 List: [Raj, David, Lisa]\r\n<\/code><\/pre>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30af\u30ed\u30fc\u30cb\u30f3\u30b0\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u5f93\u696d\u54e1\u30ea\u30b9\u30c8\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u547c\u3073\u51fa\u3057\u3092\u884c\u308f\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u305d\u3057\u3066\u3001\u30ea\u30bd\u30fc\u30b9\u3068\u6642\u9593\u3092\u6d88\u8cbb\u3059\u308b\u64cd\u4f5c\u3092\u884c\u308f\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u304cJava\u306b\u304a\u3051\u308b\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306e\u5168\u3066\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306eCreational Design\u30d1\u30bf\u30fc\u30f3\u306e\u4e00\u3064\u3067\u3059\u3002 \u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3 \u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\u304c\u9ad8\u30b3\u30b9 […]<\/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":[26,61],"class_list":["post-833","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"\nJava\u306b\u304a\u3051\u308b\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3002 - 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