Java\u7684\u5c01\u88c5\u662f\u6307\u5c06\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u8fdb\u884c\u5c01\u88c5\uff0c\u9690\u85cf\u5185\u90e8\u7ec6\u8282\uff0c\u53ea\u5bf9\u5916\u90e8\u63d0\u4f9b\u5fc5\u8981\u7684\u63a5\u53e3\u3002\u5c01\u88c5\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u4fdd\u62a4\u6570\u636e\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u590d\u7528\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\n\n\u5728\u005c'Java\u005c' \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u8bbf\u95ee\u4fee\u9970\u7b26\uff08\u005c'public\u005c' \uff0c\u005c'private\u005c' \uff0c\u005c'protected\u005c' \uff09\u6765\u63a7\u5236\u7c7b\u7684\u6210\u5458\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u5b9e\u73b0\u5c01\u88c5\u3002\u4e00\u822c\u8bf4\u6765\uff0c\u7c7b\u7684\u5c5e\u6027\u5e94\u8be5\u4f7f\u7528\u005c'private\u005c' \u4fee\u9970\u7b26\u8fdb\u884c\u5c01\u88c5\uff0c\u800c\u65b9\u6cd5\u53ef\u4ee5\u6839\u636e\u9700\u8981\u4f7f\u7528\u005c'public\u005c' \uff0c\u005c'private\u005c' \u6216\u005c'protected\u005c' \u4fee\u9970\u7b26\u8fdb\u884c\u5c01\u88c5\u3002\n\n\u5c01\u88c5\u7684\u597d\u5904\u6709\uff1a\n\n1\uff0e\u6570\u636e\u9690\u85cf\uff1a\u5c01\u88c5\u53ef\u4ee5\u9690\u85cf\u7c7b\u7684\u5185\u90e8\u7ec6\u8282\uff0c\u53ea\u5bf9\u5916\u90e8\u63d0\u4f9b\u5fc5\u8981\u7684\u63a5\u53e3\uff0c\u5b9e\u73b0\u4fdd\u62a4\u6570\u636e\u7684\u5b89\u5168\u6027\u3002\n\n2\uff0e\u4ee3\u7801\u590d\u7528\uff1a\u5c01\u88c5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u590d\u7528\u6027\uff0c\u5bf9\u5916\u90e8\u63d0\u4f9b\u7684\u63a5\u53e3\u53ef\u4ee5\u5728\u4e0d\u5f71\u54cd\u5185\u90e8\u5b9e\u73b0\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u4fee\u6539\u548c\u8c03\u6574\u3002\n\n3\uff0e\u7b80\u5316\u63a5\u53e3\uff1a\u5c01\u88c5\u53ef\u4ee5\u7b80\u5316\u7c7b\u7684\u4f7f\u7528\u63a5\u53e3\uff0c\u53ea\u9700\u8003\u8651\u7c7b\u5bf9\u5916\u63d0\u4f9b\u7684\u516c\u5171\u65b9\u6cd5\uff0c\u800c\u4e0d\u9700\u8003\u8651\u5185\u90e8\u7ec6\u8282\u3002\n\n4\uff0e\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\uff1a\u5c01\u88c5\u53ef\u4ee5\u51cf\u5c11\u5916\u90e8\u5bf9\u5185\u90e8\u7684\u4f9d\u8d56\uff0c\u4f7f\u7c7b\u7684\u5185\u90e8\u5b9e\u73b0\u53ef\u4ee5\u81ea\u7531\u4fee\u6539\uff0c\u800c\u4e0d\u4f1a\u5bf9\u5916\u90e8\u4ea7\u751f\u5f71\u54cd\u3002\n\n\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u5c01\u88c5\uff1a\n\njava\npublic class Person {\nprivate String name;\nprivate int age;\n\npublic Person(String name, int age) {\nthis.name = name;\nthis.age = age;\n}\n\npublic String getName() {\nreturn name;\n}\n\npublic void setName(String name) {\nthis.name = name;\n}\n\npublic int getAge() {\nreturn age;\n}\n\npublic void setAge(int age) {\nthis.age = age;\n}\n}\n\n\n\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u005c'Person\u005c' \u7c7b\u7684\u005c'name\u005c' \u548c\u005c'age\u005c' \u5c5e\u6027\u90fd\u88ab\u5ba3\u8a00\u4e3a\u005c'private\u005c' \uff0c\u901a\u8fc7\u516c\u5171\u7684\u005c'getName\u005c' \u548c\u005c'setName\u005c' \u65b9\u6cd5\u6765\u83b7\u53d6\u548c\u8bbe\u7f6e\u5c5e\u6027\u7684\u503c\u3002\u8fd9\u6837\u53ef\u4ee5\u4fdd\u62a4\u5c5e\u6027\u7684\u5b89\u5168\u6027\uff0c\u5916\u90e8\u65e0\u6cd5\u76f4\u63a5\u8bbf\u95ee\u548c\u4fee\u6539\u5c5e\u6027\u7684\u503c\uff0c\u5fc5\u987b\u901a\u8fc7\u516c\u5171\u7684\u65b9\u6cd5\u8fdb\u884c\u64cd\u4f5c\u3002\n\n\u603b\u7684\u8bf4\u6765\uff0c\u5c01\u88c5\u662f\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u91cd\u8981\u7279\u6027\u4e4b\u4e00\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u548c\u5b89\u5168\u6027\u3002

Java 封装:概念、优点和示例代码 - 提高代码安全性和可维护性

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