{"id":202588,"date":"2025-05-22T09:10:58","date_gmt":"2025-05-22T01:10:58","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202588\/"},"modified":"2025-05-22T09:10:58","modified_gmt":"2025-05-22T01:10:58","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8java%e4%b8%ad%e5%ae%9a%e4%b9%89%e5%8c%85%e5%86%85%e5%8f%af%e8%a7%81%e7%9a%84%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202588\/","title":{"rendered":"\u5982\u4f55\u5728Java\u4e2d\u5b9a\u4e49\u5305\u5185\u53ef\u89c1\u7684\u51fd\u6570"},"content":{"rendered":"

<\/b> <\/p>\n

\u5982\u4f55\u5728Java\u4e2d\u5b9a\u4e49\u5305\u5185\u53ef\u89c1\u7684\u51fd\u6570<\/h1>\n

\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300a\u5982\u4f55\u5728Java\u4e2d\u5b9a\u4e49\u5305\u5185\u53ef\u89c1\u7684\u51fd\u6570\u300b\uff0c\u8986\u76d6\u4e86\u6587\u7ae0\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n

\u5728 Java \u4e2d\uff0c\u5305\u5185\u53ef\u89c1\u51fd\u6570\u4ec5\u9650\u4e8e\u5f53\u524d\u5305\u4e2d\u7684\u7c7b\u8bbf\u95ee\u3002\u8bed\u6cd5\uff1avoid functionName() {}\u3002\u4e0e\u5176\u4ed6\u53ef\u89c1\u6027\u7ea7\u522b\u76f8\u6bd4\uff1a\u516c\u5f00\uff1a\u6240\u6709\u7c7b\u90fd\u53ef\u8bbf\u95ee\uff1b\u53d7\u4fdd\u62a4\uff1a\u540c\u4e00\u5305\u548c\u5b50\u7c7b\u53ef\u8bbf\u95ee\uff1b\u9ed8\u8ba4\uff1a\u4ec5\u540c\u4e00\u5305\u53ef\u8bbf\u95ee\uff1b\u79c1\u6709\uff1a\u4ec5\u5b9a\u4e49\u7c7b\u81ea\u8eab\u53ef\u8bbf\u95ee\u3002\u5305\u5185\u53ef\u89c1\u6027\u5c06\u51fd\u6570\u5206\u7ec4\u5230\u540c\u4e00\u5305\uff0c\u9650\u5236\u5916\u90e8\u8bbf\u95ee\u3002<\/p>\n

<\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u5b9a\u4e49\u5305\u5185\u53ef\u89c1\u7684\u51fd\u6570<\/strong><\/p>\n

\u7b80\u4ecb<\/strong><\/p>\n

Java \u5c06\u7c7b\u4e2d\u7684\u53d8\u91cf\u548c\u65b9\u6cd5\u5206\u4e3a\u516c\u5f00\u3001\u53d7\u4fdd\u62a4\u3001\u9ed8\u8ba4\u548c\u5305\u5185\u53ef\u89c1\u7684\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5b9a\u4e49\u5305\u5185\u53ef\u89c1\u7684\u51fd\u6570\u4ee5\u53ca\u5b83\u4eec\u4e0e\u5176\u4ed6\u53ef\u89c1\u6027\u7ea7\u522b\u7684\u533a\u522b\u3002<\/p>\n

\u5b9a\u4e49<\/strong><\/p>\n

\u5305\u5185\u53ef\u89c1\u6027\u7ea7\u522b\uff08\u4e5f\u79f0\u4e3a\u201c\u9ed8\u8ba4\u201d\u8bbf\u95ee\u6743\u9650\uff09\u610f\u5473\u7740\u51fd\u6570\u53ea\u5728\u5f53\u524d\u5305\u5185\u53ef\u89c1\uff0c\u5e76\u4e14\u4e0d\u80fd\u4ece\u5916\u90e8\u5305\u8bbf\u95ee\u3002\u4f7f\u7528\u9ed8\u8ba4\u8bbf\u95ee\u6743\u9650\u58f0\u660e\u51fd\u6570\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

void functionName() {\n  \/\/ function body\n}<\/pre>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u5982\u4f55\u5728\u4e0d\u540c\u7684\u5305\u4e2d\u4f7f\u7528\u4e0d\u540c\u53ef\u89c1\u6027\u7684\u51fd\u6570\uff1a<\/p>\n
Package1.java<\/strong><\/p>\n
package com.example.package1;\n\npublic class MyClass {\n  \/\/ \u5305\u5185\u53ef\u89c1\u51fd\u6570\n  void defaultMethod() {\n    System.out.println(\"\u8c03\u7528\u5305\u5185\u53ef\u89c1\u51fd\u6570\");\n  }\n}<\/pre>\n
Package2.java<\/strong><\/p>\n
package com.example.package2;\n\nimport com.example.package1.MyClass;\n\npublic class Main {\n  public static void main(String[] args) {\n    \/\/ \u53ef\u4ee5\u8bbf\u95ee\u5305\u5185\u53ef\u89c1\u51fd\u6570\uff0c\u56e0\u4e3a\u6765\u81ea\u540c\u4e00\u5305\n    MyClass myClass = new MyClass();\n    myClass.defaultMethod();\n  }\n}<\/pre>\n
\u4e0d\u540c\u53ef\u89c1\u6027\u7ea7\u522b\u7684\u6bd4\u8f83<\/strong><\/p>\n\n\n\n\n\n\n\n\n
\u53ef\u89c1\u6027\u7ea7\u522b<\/th>\n\u4f5c\u7528\u57df<\/th>\n<\/tr>\n<\/thead>\n
\u516c\u5f00<\/td>\n\u6240\u6709\u7c7b\uff08\u5305\u62ec\u6765\u81ea\u5176\u4ed6\u5305\u7684\u7c7b\uff09<\/td>\n<\/tr>\n
\u53d7\u4fdd\u62a4<\/td>\n\u540c\u4e00\u5305\u4e2d\u7684\u6240\u6709\u7c7b\u4ee5\u53ca\u4e0d\u540c\u5305\u7684\u5b50\u7c7b<\/td>\n<\/tr>\n
\u9ed8\u8ba4<\/td>\n\u540c\u4e00\u5305\u4e2d\u7684\u6240\u6709\u7c7b<\/td>\n<\/tr>\n
\u79c1\u6709<\/td>\n\u4ec5\u9650\u4e8e\u5b9a\u4e49\u8be5\u51fd\u6570\u7684\u7c7b\u4e2d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
    \n
  • \u5305\u5185\u53ef\u89c1\u51fd\u6570\u53ea\u9002\u7528\u4e8e\u5728\u540c\u4e00\u5305\u4e2d\u7684\u7c7b\uff0c\u5982\u679c\u9700\u8981\u4ece\u5916\u90e8\u5305\u8bbf\u95ee\uff0c\u5219\u9700\u8981\u4f7f\u7528\u5176\u4ed6\u53ef\u89c1\u6027\u7ea7\u522b\u3002<\/li>\n
  • \u9ed8\u8ba4\u8bbf\u95ee\u6743\u9650\u5bf9\u4e8e\u5c06\u76f8\u5173\u51fd\u6570\u5206\u7ec4\u5230\u4e00\u4e2a\u5305\u4e2d\u975e\u5e38\u6709\u7528\uff0c\u5e76\u9650\u5236\u5916\u90e8\u8bbf\u95ee\u3002<\/li>\n<\/ul>\n
    \u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u5728Java\u4e2d\u5b9a\u4e49\u5305\u5185\u53ef\u89c1\u7684\u51fd\u6570\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5982\u4f55\u5728Java\u4e2d\u5b9a\u4e49\u5305\u5185\u53ef\u89c1\u7684\u51fd...<\/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-202588","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202588","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=202588"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202588\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}