public Employee() {\r\n\tSystem.out.println(\"Employee Constructor\");\r\n}\r\n\r\n\r\npublic Employee Employee() {\r\n\tSystem.out.println(\"Employee Method\");\r\n\treturn new Employee();\r\n}\r\n<\/code><\/pre>\n\u6700\u521d\u306e\u3082\u306e\u306f\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u3001\u8fd4\u308a\u5024\u306e\u578b\u3082\u8fd4\u308a\u5024\u306e\u6587\u3082\u3042\u308a\u307e\u305b\u3093\u306e\u3067\u3001\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u30022\u756a\u76ee\u306e\u3082\u306e\u306f\u901a\u5e38\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3001\u518d\u3073\u6700\u521d\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u547c\u3073\u51fa\u3057\u3066\u3001\u305d\u306e\u5f8cEmployee\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u8fd4\u3057\u307e\u3059\u3002\u30af\u30e9\u30b9\u540d\u3068\u540c\u3058\u30e1\u30bd\u30c3\u30c9\u540d\u306b\u3057\u306a\u3044\u65b9\u304c\u6df7\u4e71\u3092\u62db\u304b\u306a\u3044\u306e\u3067\u3001\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
Java\u306b\u304a\u3051\u308b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u7a2e\u985e<\/h2>\n
Java\u306b\u306f3\u7a2e\u985e\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\n- \n
\u30c7\u30d5\u30a9\u30eb\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc<\/ol>\n<\/li>\n<\/ol>\n <\/p>\n
\n- \n
\u5f15\u6570\u306a\u3057\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc<\/ol>\n<\/li>\n<\/ol>\n <\/p>\n
\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u4ed8\u304d\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc<\/ol>\n\u3053\u308c\u3089\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u7a2e\u985e\u3068\u4f8b\u984c\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
Java\u306b\u304a\u3051\u308b\u30c7\u30d5\u30a9\u30eb\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf<\/h3>\n
\u30af\u30e9\u30b9\u30b3\u30fc\u30c9\u3067\u5e38\u306b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u5b9f\u88c5\u3092\u63d0\u4f9b\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u63d0\u4f9b\u3057\u306a\u3044\u5834\u5408\u3001Java\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u5b9f\u88c5\u3092\u63d0\u4f9b\u3057\u3066\u304f\u308c\u307e\u3059\u3002\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u660e\u793a\u7684\u306b\u5b9a\u7fa9\u3057\u306a\u3044\u305f\u3081\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u4f7f\u7528\u3055\u308c\u308b\u5358\u7d14\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
package com.scdev.constructor;\r\n\r\npublic class Data {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tData d = new Data();\r\n\t}\r\n}\r\n<\/code><\/pre>\n\n- \n
\u30c7\u30d5\u30a9\u30eb\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5f79\u5272\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u521d\u671f\u5316\u3057\u3066\u547c\u3073\u51fa\u3057\u5143\u306e\u30b3\u30fc\u30c9\u306b\u8fd4\u3059\u3053\u3068\u3067\u3059\u3002<\/ol>\n<\/li>\n<\/ol>\n <\/p>\n
\n- \n
\u30c7\u30d5\u30a9\u30eb\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306f\u5e38\u306b\u5f15\u6570\u306a\u3057\u3067\u3042\u308a\u3001\u65e2\u5b58\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306b\u306e\u307f\u3001Java\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u3088\u3063\u3066\u63d0\u4f9b\u3055\u308c\u307e\u3059\u3002<\/ol>\n<\/li>\n<\/ol>\n <\/p>\n
\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u4ed6\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u3001\u30b2\u30c3\u30bf\u30fc\u30bb\u30c3\u30bf\u30fc\u30e1\u30bd\u30c3\u30c9\u3092\u901a\u3058\u3066\u30a2\u30af\u30bb\u30b9\u304a\u3088\u3073\u521d\u671f\u5316\u3059\u308b\u305f\u3081\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u81ea\u4f53\u3067\u5341\u5206\u3067\u3059\u3002<\/ol>\n\u5f15\u6570\u306e\u306a\u3044\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf<\/h3>\n
\u5f15\u6570\u306a\u3057\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306f\u3001no-args\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u4e0a\u66f8\u304d\u3059\u308b\u3088\u3046\u306a\u3082\u306e\u3067\u3042\u308a\u3001\u30ea\u30bd\u30fc\u30b9\u306e\u78ba\u8a8d\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u306e\u78ba\u8a8d\u3001\u30ed\u30b0\u306e\u8a18\u9332\u306a\u3069\u3001\u4e8b\u524d\u306e\u521d\u671f\u5316\u51e6\u7406\u3092\u884c\u3046\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3067\u306f\u3001Java\u306b\u304a\u3051\u308bno-args\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u7c21\u5358\u306b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
package com.scdev.constructor;\r\n\r\npublic class Data {\r\n \/\/no-args constructor\r\n\tpublic Data() {\r\n\t\tSystem.out.println(\"No-Args Constructor\");\r\n\t}\r\n\tpublic static void main(String[] args) {\r\n\t\tData d = new Data();\r\n\t}\r\n}\r\n<\/code><\/pre>\n![\"no](\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/65648eb5daa94e2bdf7bd48d\/16-0.png\" "\\"\\"")
<\/div>\n\u30d1\u30e9\u30e1\u30fc\u30bf\u5316\u3055\u308c\u305f\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf<\/h3>\n
\u5f15\u6570\u3092\u6301\u3064\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u306f\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u5316\u3055\u308c\u305f\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u3068\u547c\u3070\u308c\u307e\u3059\u3002Java\u306b\u304a\u3051\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u5316\u3055\u308c\u305f\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
package com.scdev.constructor;\r\n\r\npublic class Data {\r\n\r\n\tprivate String name;\r\n\r\n\tpublic Data(String n) {\r\n\t\tSystem.out.println(\"Parameterized Constructor\");\r\n\t\tthis.name = n;\r\n\t}\r\n\r\n\tpublic String getName() {\r\n\t\treturn name;\r\n\t}\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tData d = new Data(\"Java\");\r\n\t\tSystem.out.println(d.getName());\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n![\"java](\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/65648eb5daa94e2bdf7bd48d\/20-0.png\" "\\"\\"")
<\/div>\nJava\u306b\u304a\u3051\u308b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9<\/h2>\n
\u8907\u6570\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u3042\u308b\u5834\u5408\u3001\u305d\u308c\u306fJava\u306b\u304a\u3051\u308b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u3067\u3059\u3002Java\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u304a\u3051\u308b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
package com.scdev.constructor;\r\n\r\npublic class Data {\r\n\r\n\tprivate String name;\r\n\tprivate int id;\r\n\r\n\t\/\/no-args constructor\r\n\tpublic Data() {\r\n\t\tthis.name = \"Default Name\";\r\n\t}\r\n\t\/\/one parameter constructor\r\n\tpublic Data(String n) {\r\n\t\tthis.name = n;\r\n\t}\r\n\t\/\/two parameter constructor\r\n\tpublic Data(String n, int i) {\r\n\t\tthis.name = n;\r\n\t\tthis.id = i;\r\n\t}\r\n\r\n\tpublic String getName() {\r\n\t\treturn name;\r\n\t}\r\n\r\n\tpublic int getId() {\r\n\t\treturn id;\r\n\t}\r\n\r\n\t@Override\r\n\tpublic String toString() {\r\n\t\treturn \"ID=\"+id+\", Name=\"+name;\r\n\t}\r\n\tpublic static void main(String[] args) {\r\n\t\tData d = new Data();\r\n\t\tSystem.out.println(d);\r\n\t\t\r\n\t\td = new Data(\"Java\");\r\n\t\tSystem.out.println(d);\r\n\t\t\r\n\t\td = new Data(\"Pankaj\", 25);\r\n\t\tSystem.out.println(d);\r\n\t\t\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\nJava\u306b\u304a\u3051\u308b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf<\/h2>\n
\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u3067\u306f\u62bd\u8c61\u3001\u6700\u7d42\u3001\u9759\u7684\u3001\u304a\u3088\u3073\u540c\u671f\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u4f7f\u7528\u3067\u304d\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u3092\u4f7f\u7528\u3057\u3066\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u3002public\u3068\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30a2\u30af\u30bb\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u3092\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306b\u3059\u308b\u5229\u70b9\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\uff1f\u305d\u306e\u5834\u5408\u3001\u4ed6\u306e\u30af\u30e9\u30b9\u306f\u305d\u306e\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u3067\u306f\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u3092\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306b\u3059\u308b\u306e\u306f\u3001\u30b7\u30f3\u30b0\u30eb\u30c8\u30f3\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3092\u5b9f\u88c5\u3057\u305f\u3044\u5834\u5408\u3067\u3059\u3002Java\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u3092\u81ea\u52d5\u7684\u306b\u63d0\u4f9b\u3059\u308b\u305f\u3081\u3001\u660e\u793a\u7684\u306b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u3092\u4f5c\u6210\u3057\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306b\u4fdd\u6301\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30af\u30e9\u30b9\u306f\u3001\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u306e\u9759\u7684\u30e1\u30bd\u30c3\u30c9\u304c\u63d0\u4f9b\u3055\u308c\u307e\u3059\u3002Data\u30af\u30e9\u30b9\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u306e\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n
\/\/ private constructor\r\nprivate Data() {\r\n\t\/\/empty constructor for singleton pattern implementation\r\n\t\/\/can have code to be used inside the getInstance() method of class\r\n}\r\n<\/code><\/pre>\nJava\u306b\u304a\u3051\u308b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u30c1\u30a7\u30a4\u30cb\u30f3\u30b0<\/h2>\n
\u540c\u3058\u30af\u30e9\u30b9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u5225\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u547c\u3073\u51fa\u3059\u5834\u5408\u3001\u305d\u308c\u306f\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30c1\u30a7\u30a4\u30f3\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u30af\u30e9\u30b9\u306e\u5225\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u547c\u3073\u51fa\u3059\u305f\u3081\u306b\u306f\u3001this\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6642\u306b\u306f\u30af\u30e9\u30b9\u5909\u6570\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u306a\u304a\u3001\u5225\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u547c\u3073\u51fa\u3057\u306f\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u5185\u306e\u6700\u521d\u306e\u6587\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u7121\u9650\u30eb\u30fc\u30d7\u3092\u4f5c\u6210\u3059\u308b\u518d\u5e30\u547c\u3073\u51fa\u3057\u306f\u884c\u3063\u3066\u306f\u306a\u308a\u307e\u305b\u3093\u3002Java\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30c1\u30a7\u30a4\u30f3\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
package com.scdev.constructor;\r\n\r\npublic class Employee {\r\n\r\n\tprivate int id;\r\n\tprivate String name;\r\n\t\r\n\tpublic Employee() {\r\n\t\tthis(\"John Doe\", 999);\r\n\t\tSystem.out.println(\"Default Employee Created\");\r\n\t}\r\n\t\r\n\tpublic Employee(int i) {\r\n\t\tthis(\"John Doe\", i);\r\n\t\tSystem.out.println(\"Employee Created with Default Name\");\r\n\t}\r\n\tpublic Employee(String s, int i) {\r\n\t\tthis.id = i;\r\n\t\tthis.name = s;\r\n\t\tSystem.out.println(\"Employee Created\");\r\n\t}\r\n\tpublic static void main(String[] args) {\r\n\r\n\t\tEmployee emp = new Employee();\r\n\t\tSystem.out.println(emp);\r\n\t\tEmployee emp1 = new Employee(10);\r\n\t\tSystem.out.println(emp1);\r\n\t\tEmployee emp2 = new Employee(\"Pankaj\", 20);\r\n\t\tSystem.out.println(emp2);\r\n\t}\r\n\r\n\t@Override\r\n\tpublic String toString() {\r\n\t\treturn \"ID = \"+id+\", Name = \"+name;\r\n\t}\r\n\tpublic int getId() {\r\n\t\treturn id;\r\n\t}\r\n\r\n\tpublic void setId(int id) {\r\n\t\tthis.id = id;\r\n\t}\r\n\r\n\tpublic String getName() {\r\n\t\treturn name;\r\n\t}\r\n\r\n\tpublic void setName(String name) {\r\n\t\tthis.name = name;\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n\u79c1\u306ftoString()\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u3066\u3001Employee\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u95a2\u3059\u308b\u6709\u7528\u306a\u60c5\u5831\u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u4e0a\u8a18\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u51fa\u529b\u3067\u3059\u3002<\/p>\n
Employee Created\r\nDefault Employee Created\r\nID = 999, Name = John Doe\r\nEmployee Created\r\nEmployee Created with Default Name\r\nID = 10, Name = John Doe\r\nEmployee Created\r\nID = 20, Name = Pankaj\r\n<\/code><\/pre>\n\u5225\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u304b\u3089\u547c\u3073\u51fa\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u304c\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u30c1\u30a7\u30fc\u30f3\u306e\u30d7\u30ed\u30bb\u30b9\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
Java\u306e\u30b9\u30fc\u30d1\u30fc\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf<\/h2>\n
\u6642\u306b\u306f\u3001\u30af\u30e9\u30b9\u306f\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u304b\u3089\u7d99\u627f\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u3001\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u547c\u3073\u51fa\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u5834\u5408\u3001super\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u547c\u3073\u51fa\u3059\u5834\u5408\u3001\u5b50\u30af\u30e9\u30b9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u5185\u3067\u6700\u521d\u306e\u6587\u3068\u3057\u3066\u547c\u3073\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u5b50\u30af\u30e9\u30b9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3059\u308b\u969b\u306b\u306f\u3001Java\u306f\u307e\u305a\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u3092\u521d\u671f\u5316\u3057\u3001\u6b21\u306b\u5b50\u30af\u30e9\u30b9\u3092\u521d\u671f\u5316\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u660e\u793a\u7684\u306b\u547c\u3073\u51fa\u3055\u308c\u306a\u3044\u5834\u5408\u3001Java\u30e9\u30f3\u30bf\u30a4\u30e0\u306b\u3088\u3063\u3066\u30c7\u30d5\u30a9\u30eb\u30c8\u307e\u305f\u306f\u5f15\u6570\u306a\u3057\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u547c\u3073\u51fa\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6982\u5ff5\u3092\u3044\u304f\u3064\u304b\u306e\u4f8b\u984c\u3092\u901a\u3057\u3066\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a2\u3064\u306e\u30af\u30e9\u30b9\u304c\u3042\u308b\u3068\u4eee\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
package com.scdev.constructor;\r\n\r\npublic class Person {\r\n\r\n\tprivate int age;\r\n\r\n\tpublic Person() {\r\n\t\tSystem.out.println(\"Person Created\");\r\n\t}\r\n\r\n\tpublic Person(int i) {\r\n\t\tthis.age = i;\r\n\t\tSystem.out.println(\"Person Created with Age = \" + i);\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\npackage com.scdev.constructor;\r\n\r\npublic class Student extends Person {\r\n\r\n\tprivate String name;\r\n\r\n\tpublic Student() {\r\n\t\tSystem.out.println(\"Student Created\");\r\n\t}\r\n\r\n\tpublic Student(int i, String n) {\r\n\t\tsuper(i); \/\/ super class constructor called\r\n\t\tthis.name = n;\r\n\t\tSystem.out.println(\"Student Created with name = \" + n);\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n\u4ee5\u4e0b\u306e\u3088\u3046\u306bStudent\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3068\u3001<\/p>\n
Student st = new Student();\r\n<\/code><\/pre>\n\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306e\u51fa\u529b\u306f\u4f55\u306b\u306a\u308a\u307e\u3059\u304b\uff1f\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306e\u51fa\u529b\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n
Person Created\r\nStudent Created\r\n<\/code><\/pre>\n\u6700\u521d\u306e\u6587\u306b\u30b9\u30fc\u30d1\u30fc\u30b3\u30fc\u30eb\u304c\u306a\u304b\u3063\u305f\u305f\u3081\u3001\u547c\u3073\u51fa\u3057\u306fStudent\u30af\u30e9\u30b9\u306e\u5f15\u6570\u306a\u3057\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306b\u79fb\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5f15\u6570\u306a\u3057\u307e\u305f\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u306ePerson\u30af\u30e9\u30b9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u547c\u3073\u51fa\u3055\u308c\u307e\u3059\u3002\u3088\u3063\u3066\u3001\u51fa\u529b\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3082\u3057Student\u30af\u30e9\u30b9\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u4ed8\u304d\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001Student st = new Student(34, “Pankaj”);\u3001\u51fa\u529b\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
Person Created with Age = 34\r\nStudent Created with name = Pankaj\r\n<\/code><\/pre>\n\u3053\u3053\u3067\u306f\u3001\u660e\u793a\u7684\u306b\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u547c\u3073\u51fa\u3057\u3066\u3044\u308b\u305f\u3081\u3001Java\u306f\u81ea\u5206\u305f\u3061\u306e\u5074\u304b\u3089\u4f59\u5206\u306a\u4f5c\u696d\u3092\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u306e\u3067\u3001\u51fa\u529b\u306f\u660e\u78ba\u3067\u3059\u3002<\/p>\n
Java\u306e\u30b3\u30d4\u30fc\u30fb\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc<\/h2>\n
Java\u306e\u30b3\u30d4\u30fc\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306f\u3001\u540c\u3058\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5f15\u6570\u3068\u3057\u3066\u53d7\u3051\u53d6\u308a\u3001\u305d\u308c\u306e\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u6642\u306b\u306f\u4ed6\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30d4\u30fc\u304c\u5fc5\u8981\u3067\u3001\u51e6\u7406\u3092\u884c\u3046\u305f\u3081\u306b\u4ee5\u4e0b\u306e\u65b9\u6cd5\u3067\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\n- \n
\u30af\u30ed\u30fc\u30cb\u30f3\u30b0\u3092\u5b9f\u88c5\u3057\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u306e\u305f\u3081\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30e1\u30bd\u30c3\u30c9\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/ol>\n<\/li>\n<\/ol>\n <\/p>\n
\u30b3\u30d4\u30fc\u7528\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u6301\u3064\u3002<\/ol>\n\u3067\u306f\u3001\u30b3\u30d4\u30fc\uff08\u8907\u88fd\uff09\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u3069\u306e\u3088\u3046\u306b\u66f8\u304f\u304b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306aFruits\u3068\u3044\u3046\u30af\u30e9\u30b9\u304c\u3042\u308b\u3068\u4eee\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
package com.scdev.constructor;\r\n\r\nimport java.util.ArrayList;\r\nimport java.util.List;\r\n\r\npublic class Fruits {\r\n\r\n\tprivate List<String> fruitsList;\r\n\r\n\tpublic List<String> getFruitsList() {\r\n\t\treturn fruitsList;\r\n\t}\r\n\r\n\tpublic void setFruitsList(List<String> fruitsList) {\r\n\t\tthis.fruitsList = fruitsList;\r\n\t}\r\n\r\n\tpublic Fruits(List<String> fl) {\r\n\t\tthis.fruitsList = fl;\r\n\t}\r\n\t\r\n\tpublic Fruits(Fruits fr) {\r\n\t\tList<String> fl = new ArrayList<>();\r\n\t\tfor (String f : fr.getFruitsList()) {\r\n\t\t\tfl.add(f);\r\n\t\t}\r\n\t\tthis.fruitsList = fl;\r\n\t}\r\n}\r\n<\/code><\/pre>\nFruits\u30af\u30e9\u30b9\u304c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30d4\u30fc\u3092\u8fd4\u3059\u305f\u3081\u306b\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u30b3\u30d4\u30fc\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u4f7f\u7528\u3059\u308b\u65b9\u304c\u826f\u3044\u7406\u7531\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u30c6\u30b9\u30c8\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
package com.scdev.constructor;\r\n\r\nimport java.util.ArrayList;\r\nimport java.util.List;\r\n\r\npublic class CopyConstructorTest {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\tList<String> fl = new ArrayList<>();\r\n\t\tfl.add(\"Mango\");\r\n\t\tfl.add(\"Orange\");\r\n\r\n\t\tFruits fr = new Fruits(fl);\r\n\r\n\t\tSystem.out.println(fr.getFruitsList());\r\n\r\n\t\tFruits frCopy = fr;\r\n\t\tfrCopy.getFruitsList().add(\"Apple\");\r\n\r\n\t\tSystem.out.println(fr.getFruitsList());\r\n\r\n\t\tfrCopy = new Fruits(fr);\r\n\t\tfrCopy.getFruitsList().add(\"Banana\");\r\n\t\tSystem.out.println(fr.getFruitsList());\r\n\t\tSystem.out.println(frCopy.getFruitsList());\r\n\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n\u4e0a\u8a18\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u51fa\u529b\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
[Mango, Orange]\r\n[Mango, Orange, Apple]\r\n[Mango, Orange, Apple]\r\n[Mango, Orange, Apple, Banana]\r\n<\/code><\/pre>\nJava\u3067\u30b3\u30d4\u30fc\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u5143\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u305d\u306e\u30b3\u30d4\u30fc\u306f\u4e92\u3044\u306b\u95a2\u4fc2\u304c\u306a\u304f\u3001\u3069\u3061\u3089\u304b\u306e\u5909\u66f4\u304c\u4ed6\u65b9\u306b\u53cd\u6620\u3055\u308c\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u304cJava\u306b\u304a\u3051\u308b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u3059\u3079\u3066\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Java\u3067\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306f\u3001\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u3068\u307b\u307c\u540c\u3058\u3067\u3059\u304c\u30012\u3064\u306e\u70b9\u3067\u7570\u306a\u308a\u307e\u3059\u3002\u305d\u308c\u306f\u30af\u30e9\u30b9\u540d\u3068\u540c\u3058\u540d\u524d\u3067\u3042\u308a\u3001\u623b\u308a\u5024\u306e\u578b\u3092\u6301\u3061\u307e\u305b\u3093\u3002\u6642\u306b\u306f\u30b3\u30f3\u30b9\u30c8\u30e9\u30af […]<\/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-583","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"\n
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