{"id":202824,"date":"2025-05-22T10:56:31","date_gmt":"2025-05-22T02:56:31","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202824\/"},"modified":"2025-05-22T10:56:31","modified_gmt":"2025-05-22T02:56:31","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-java-%e4%b8%ad%e5%a3%b0%e6%98%8e%e5%8f%97%e4%bf%9d%e6%8a%a4%e7%9a%84%e5%87%bd%e6%95%b0%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202824\/","title":{"rendered":"\u5982\u4f55\u5728 Java \u4e2d\u58f0\u660e\u53d7\u4fdd\u62a4\u7684\u51fd\u6570\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5982\u4f55\u5728 Java \u4e2d\u58f0\u660e\u53d7\u4fdd\u62a4\u7684\u51fd\u6570\uff1f<\/h1>\n<p>\u600e\u4e48\u5165\u95e8\u6587\u7ae0\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300a\u5982\u4f55\u5728 Java \u4e2d\u58f0\u660e\u53d7\u4fdd\u62a4\u7684\u51fd\u6570\uff1f\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n<p>\u5728 Java \u4e2d\u58f0\u660e\u53d7\u4fdd\u62a4\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u51fd\u6570\u7684\u8bbf\u95ee\u4fee\u9970\u7b26\u4e2d\u4f7f\u7528 protected \u5173\u952e\u5b57\uff1a\u4f7f\u7528 protected \u8bbf\u95ee\u4fee\u9970\u7b26\uff1aprotected void protectedFunction() {}\u53d7\u4fdd\u62a4\u51fd\u6570\u53ef\u7531\u6d3e\u751f\u7c7b\u8bbf\u95ee\u3002\u53d7\u4fdd\u62a4\u51fd\u6570\u53ef\u7531\u540c\u4e00\u4e2a\u5305\u4e2d\u7684\u5176\u4ed6\u7c7b\u8bbf\u95ee\u3002\u53d7\u4fdd\u62a4\u51fd\u6570\u4e0d\u80fd\u5728\u5176\u4ed6\u5305\u4e2d\u8bbf\u95ee\u3002\u53d7\u4fdd\u62a4\u51fd\u6570\u53ef\u8bbf\u95ee\u540c\u4e00\u5305\u4e2d\u5176\u4ed6\u7c7b\u7684\u53d7\u4fdd\u62a4\u5b57\u6bb5\u3002\u53d7\u4fdd\u62a4\u51fd\u6570\u53ef\u8c03\u7528\u540c\u4e00\u5305\u4e2d\u5176\u4ed6\u7c7b\u4e2d\u53ef\u89c1\u7684\u975e\u79c1\u6709\u6784\u9020\u51fd\u6570\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729946314671ce2caf2ae8.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u58f0\u660e\u53d7\u4fdd\u62a4\u7684\u51fd\u6570\uff1f<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>\u53d7\u4fdd\u62a4\u7684\u8bbf\u95ee\u4fee\u9970\u7b26\u5141\u8bb8\u6d3e\u751f\u7c7b\u53ca\u5176\u5305\u542b\u7c7b\u7684\u540c\u4e00\u4e2a\u5305\u4e2d\u7684\u5176\u4ed6\u7c7b\u8bbf\u95ee\u65b9\u6cd5\uff0c\u4f46\u4e0d\u80fd\u5728\u5176\u4ed6\u5305\u4e2d\u8bbf\u95ee\u3002\u672c\u6587\u5c06\u6307\u5bfc\u60a8\u5982\u4f55\u58f0\u660e\u53d7\u4fdd\u62a4\u7684\u51fd\u6570\u3002<\/p>\n<p><strong>\u8bed\u6cd5<\/strong><\/p>\n<p>\u8981\u58f0\u660e\u53d7\u4fdd\u62a4\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u51fd\u6570\u7684\u8bbf\u95ee\u4fee\u9970\u7b26\u4e2d\u4f7f\u7528\u5173\u952e\u5b57 <code>protected<\/code>\uff1a<\/p>\n<pre>protected void protectedFunction() {\n    \/\/ \u60a8\u7684\u4ee3\u7801\n}<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b Java \u7c7b\uff1a<\/p>\n<pre>public class ParentClass {\n    protected void protectedMethod() {\n        System.out.println(\"\u53d7\u4fdd\u62a4\u7684\u65b9\u6cd5\");\n    }\n}<\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>protectedMethod<\/code> \u662f\u53d7\u4fdd\u62a4\u7684\uff0c\u56e0\u6b64\u5b83\u53ef\u4ee5\u5728 <code>ParentClass<\/code> \u7684\u6d3e\u751f\u7c7b\u548c\u540c\u4e00\u4e2a\u5305\u4e2d\u7684\u5176\u4ed6\u7c7b\u4e2d\u8bbf\u95ee\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u6d3e\u751f\u7c7b <code>ChildClass<\/code>\uff1a<\/p>\n<pre>public class ChildClass extends ParentClass {\n    public static void main(String[] args) {\n        ChildClass child = new ChildClass();\n        child.protectedMethod(); \/\/ \u53ef\u4ee5\u8bbf\u95ee\u53d7\u4fdd\u62a4\u7684\u65b9\u6cd5\n    }\n}<\/pre>\n<p>\u5728\u4e3b\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u8bbf\u95ee\u6d3e\u751f\u7c7b\u4e2d\u53d7\u4fdd\u62a4\u7684\u51fd\u6570 <code>protectedMethod<\/code>\u3002<\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u53d7\u4fdd\u62a4\u51fd\u6570\u4e0d\u80fd\u5728\u5176\u4ed6\u5305\u4e2d\u8bbf\u95ee\u3002<\/li>\n<li>\u53d7\u4fdd\u62a4\u51fd\u6570\u53ef\u7528\u4e8e\u8bbf\u95ee\u540c\u4e00\u5305\u4e2d\u5176\u4ed6\u7c7b\u7684\u53d7\u4fdd\u62a4\u5b57\u6bb5\u3002<\/li>\n<li>\u53d7\u4fdd\u62a4\u51fd\u6570\u8fd8\u53ef\u7528\u4e8e\u8c03\u7528\u540c\u4e00\u5305\u4e2d\u5176\u4ed6\u7c7b\u4e2d\u53ef\u89c1\u7684\u975e\u79c1\u6709\u6784\u9020\u51fd\u6570\u3002<\/li>\n<\/ul>\n<p>\u672c\u7bc7\u5173\u4e8e\u300a\u5982\u4f55\u5728 Java \u4e2d\u58f0\u660e\u53d7\u4fdd\u62a4\u7684\u51fd\u6570\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5728 Java \u4e2d\u58f0\u660e\u53d7\u4fdd\u62a4\u7684&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202824","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202824"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202824\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}