{"id":693,"date":"2022-10-05T23:20:17","date_gmt":"2022-10-05T15:20:17","guid":{"rendered":"https:\/\/qaqaq.top\/?p=693"},"modified":"2022-11-27T12:39:57","modified_gmt":"2022-11-27T04:39:57","slug":"%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e4%b8%ad-%e6%96%b9%e6%b3%95%e9%87%8d%e5%86%99%e7%9a%84%e7%90%86%e8%a7%a3%e3%80%81%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e4%b8%ad-%e6%96%b9%e6%b3%95%e9%87%8d","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=693","title":{"rendered":"\u9762\u5411\u5bf9\u8c61(\u4e2d)-\u65b9\u6cd5\u91cd\u5199\u7684\u7406\u89e3\u3001\u9762\u5411\u5bf9\u8c61(\u4e2d)-\u65b9\u6cd5\u91cd\u5199\u7684\u7ec6\u8282"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P272;\r\n\r\npublic class Person {\r\n\r\n\tString name;\r\n\tint age;\r\n\t\r\n\tpublic Person() {\r\n\t\t\r\n\t}\r\n\t\r\n\tpublic Person(String name, int age) {\r\n\t\tthis.name = name;\r\n\t\tthis.age = age;\r\n\t}\r\n\t\r\n\tvoid eat() {\r\n\t\tSystem.out.println(\"\u5403\u996d\");\r\n\t}\r\n\t\r\n\tpublic void walk(int distance) {\r\n\t\tSystem.out.println(\"\u8d70\u8def,\u8d70\u7684\u8ddd\u79bb\u662f\uff1a\" + distance + \"\u516c\u91cc\");\r\n\t\tshow();\r\n\t\teat();\r\n\t}\r\n\t\r\n\tprivate void show() {\r\n\t\tSystem.out.println(\"\u6211\u662f\u4e00\u4e2a\u4eba\");\r\n\t}\r\n\t\r\n\tpublic Object info() {\r\n\t\treturn null;\r\n\t}\r\n\t\r\n\tpublic double info1() {\r\n\t\treturn 1.0;\r\n\t}\r\n\t\r\n}\r\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P272;\r\n\r\npublic class Student extends Person {\r\n\t\r\n\tString major;\r\n\t\r\n\tpublic Student() {\r\n\t\t\r\n\t}\r\n\t\r\n\tpublic Student(String major) {\r\n\t\tthis.major = major;\r\n\t}\r\n\t\r\n\tpublic void study() {\r\n\t\tSystem.out.println(\"\u5b66\u4e60\u3002\u4e13\u4e1a\u662f\" + major);\r\n\t}\r\n\t\r\n\t\/\/\u5bf9\u7236\u7c7b\u4e2d\u7684eat()\u8fdb\u884c\u4e86\u91cd\u5199\r\n\tpublic void eat() {\r\n\t\tSystem.out.println(\"\u5b66\u751f\u5e94\u8be5\u591a\u5403\u6709\u8425\u517b\u7684\u98df\u7269\");\r\n\t}\r\n\t\r\n\tpublic void show() {\r\n\t\tSystem.out.println(\"\u6211\u662f\u4e00\u4e2a\u5b66\u751f\");\r\n\t}\r\n\t\r\n\tpublic String info() {\r\n\t\treturn null;\r\n\t}\r\n\t\r\n\/\/\tpublic int info1() {\r\n\/\/\t\treturn 1;\r\n\/\/\t}\r\n\r\n\/\/\tpublic void walk(int distance) {\r\n\/\/\t\tSystem.out.println(\"\u91cd\u5199\u7684\u65b9\u6cd5\");\r\n\/\/\t}\r\n\t\r\n\t\r\n\tpublic void walk(int distance) {\r\n\t\tSystem.out.println(\"\u91cd\u5199\u7684\u65b9\u6cd5\");\r\n\t}\r\n\t\r\n}\r\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P272;\r\n\/*\r\n * \u65b9\u6cd5\u7684\u91cd\u5199(override \/ overwrite)\r\n * \r\n * 1. \u91cd\u5199\uff1a\u5b50\u7c7b\u7ee7\u627f\u7236\u7c7b\u4ee5\u540e\uff0c\u53ef\u4ee5\u5bf9\u7236\u7c7b\u4e2d\u540c\u540d\u540c\u53c2\u7684\u65b9\u6cd5\uff0c\u8fdb\u884c\u8986\u76d6\u64cd\u4f5c\r\n * \r\n * 2. \u5e94\u7528\uff1a\u91cd\u5199\u4ee5\u540e\uff0c\u5f53\u521b\u5efa\u5b50\u7c7b\u5bf9\u8c61\u4ee5\u540e\uff0c\u901a\u8fc7\u5b50\u7c7b\u5bf9\u8c61\u8c03\u7528\u5b50\u7236\u7c7b\u4e2d\u7684\u540c\u540d\u540c\u53c2\u6570\u7684\u65b9\u6cd5\u65f6\uff0c\u5b9e\u9645\u6267\u884c\u7684\u662f\u5b50\u7c7b\u91cd\u5199\u7236\u7c7b\u7684\u65b9\u6cd5\u3002\r\n * \r\n * 3. \u91cd\u5199\u7684\u89c4\u5b9a\uff1a\r\n * \t\t\u65b9\u6cd5\u7684\u58f0\u660e\uff1a\u6743\u9650\u4fee\u9970\u7b26 \u8fd4\u56de\u503c\u7c7b\u578b \u65b9\u6cd5\u540d(\u5f62\u53c2\u5217\u8868) throws \u5f02\u5e38\u7684\u7c7b\u578b{\r\n * \t\t\t\/\/\u65b9\u6cd5\u4f53\r\n * \t\t}\r\n * \t\t\u7ea6\u5b9a\u4fd7\u79f0\uff1a\u5b50\u7c7b\u4e2d\u7684\u53eb\u91cd\u5199\u7684\u65b9\u6cd5\uff0c\u7236\u7c7b\u4e2d\u7684\u53eb\u88ab\u91cd\u5199\u7684\u65b9\u6cd5\r\n * \t\t\u2460 \u5b50\u7c7b\u91cd\u5199\u7684\u65b9\u6cd5\u7684\u65b9\u6cd5\u540d\u548c\u5f62\u53c2\u5217\u8868\u4e0e\u7236\u7c7b\u88ab\u91cd\u5199\u7684\u65b9\u6cd5\u7684\u65b9\u6cd5\u540d\u548c\u5f62\u53c2\u5217\u8868\u76f8\u540c\r\n * \t\t\u2461 \u5b50\u7c7b\u91cd\u5199\u7684\u65b9\u6cd5\u7684\u6743\u9650\u4fee\u9970\u7b26\u4e0d\u5c0f\u4e8e\u7236\u7c7b\u88ab\u91cd\u5199\u7684\u65b9\u6cd5\u7684\u6743\u9650\u4fee\u9970\u7b26\r\n * \t\t\t>\u7279\u6b8a\u60c5\u51b5\uff1a\u5b50\u7c7b\u4e0d\u80fd\u91cd\u5199\u7236\u7c7b\u4e2d\u58f0\u660e\u4e3aprivate\u6743\u9650\u7684\u65b9\u6cd5\r\n * \t\t\u2462 \u8fd4\u56de\u503c\u7c7b\u578b\uff1a\r\n * \t\t\t>\u7236\u7c7b\u88ab\u91cd\u5199\u7684\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u662fvoid\uff0c\u5219\u5b50\u7c7b\u91cd\u5199\u7684\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u53ea\u80fd\u662fvoid\r\n * \t\t\t>\u7236\u7c7b\u88ab\u91cd\u5199\u7684\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u662fA\u7c7b\u578b\uff0c\u5219\u5b50\u7c7b\u91cd\u5199\u7684\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u53ef\u4ee5\u662fA\u7c7b\u6216A\u7c7b\u7684\u5b50\u7c7b\u3002\r\n * \t\t\t>\u7236\u7c7b\u88ab\u91cd\u5199\u7684\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u662f\u57fa\u672c\u6570\u636e\u7c7b\u578b(\u6bd4\u5982\uff1adouble)\uff0c\u5219\u5b50\u7c7b\u91cd\u5199\u7684\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u5fc5\u987b\u662f\u76f8\u540c\u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b(\u5fc5\u987b\u4e5f\u662fdouble)\r\n *\t\t\u2463 \u5b50\u7c7b\u91cd\u5199\u7684\u65b9\u6cd5\u629b\u51fa\u7684\u5f02\u5e38\u7c7b\u578b\u4e0d\u5927\u4e8e\u7236\u7c7b\u88ab\u91cd\u5199\u7684\u65b9\u6cd5\u629b\u51fa\u7684\u5f02\u5e38\u7c7b\u578b\uff08\u5177\u4f53\u653e\u5230\u5f02\u5e38\u5904\u7406\u65f6\u5019\u8bb2\uff09\r\n * \t*****************************************************************************************************************\r\n * \r\n * \t\t\u5b50\u7c7b\u548c\u7236\u7c7b\u4e2d\u7684\u540c\u540d\u540c\u53c2\u6570\u7684\u65b9\u6cd5\u8981\u4e48\u90fd\u58f0\u660e\u4e3a\u975estatic\u7684\uff08\u8003\u8651\u91cd\u5199\uff09\uff0c\u8981\u4e48\u90fd\u58f0\u660e\u4e3astatic\u7684\uff08\u4e0d\u662f\u91cd\u5199\uff09\u3002\r\n * \r\n * \u9762\u8bd5\u9898\uff1a\u533a\u5206\u65b9\u6cd5\u7684\u91cd\u8f7d\u4e0e\u91cd\u5199\r\n * \r\n *\/\r\npublic class PersonTest {\r\n\r\n\tpublic static void main(String&#91;] args) {\r\n\t\t\r\n\t\tStudent s = new Student(\"\u8ba1\u7b97\u673a\u79d1\u5b66\u4e0e\u6280\u672f\");\r\n\t\t\r\n\t\ts.eat();\r\n\t\ts.walk(10);\r\n\t\t\r\n\t\tSystem.out.println(\"***************************\");\r\n\t\t\r\n\t\ts.study();\r\n\t\t\r\n\t\tPerson p1 = new Person();\r\n\t\tp1.eat();\r\n\t}\r\n}\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[46],"class_list":["post-693","post","type-post","status-publish","format-standard","hentry","category-java-code","tag-java"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/693"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=693"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/693\/revisions"}],"predecessor-version":[{"id":694,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/693\/revisions\/694"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}