{"id":1998,"date":"2020-08-10T09:59:24","date_gmt":"2020-08-10T01:59:24","guid":{"rendered":"http:\/\/admin.evshou.com\/?p=1998"},"modified":"2020-08-10T16:55:05","modified_gmt":"2020-08-10T08:55:05","slug":"2020java%e6%95%99%e7%a8%8b%ef%bc%9a%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e7%9a%84%e4%b8%89%e5%a4%a7%e7%89%b9%e6%80%a7super%e5%85%b3%e9%94%ae%e5%ad%97","status":"publish","type":"post","link":"https:\/\/www.9713job.com\/?p=1998","title":{"rendered":"2020java\u6559\u7a0b\uff1a\u9762\u5411\u5bf9\u8c61\u7684\u4e09\u5927\u7279\u6027super\u5173\u952e\u5b57"},"content":{"rendered":"

\u9762\u5411\u5bf9\u8c61\u7684\u4e09\u5927\u7279\u6027super\u5173\u952e\u5b57<\/h3>\n

super\u5173\u952e\u5b57
\n\u5728\u5b50\u7c7b\u4e2d\uff0c\u53ef\u76f4\u63a5\u8bbf\u95ee\u4ece\u7236\u7c7b\u7ee7\u627f\u5230\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u4f46\u5982\u679c\u7236\u5b50\u7c7b\u7684\u5c5e\u6027\u6216\u65b9\u6cd5\u5b58\u5728\u91cd\u540d(\u5c5e\u6027\u906e\u853d\uff0c\u65b9\u6cd5\u8986\u76d6)\u65f6\uff0c\u9700\u8981\u52a0\u4ee5\u533a\u5206\uff0c\u624d\u53ef\u4ee5\u4e13\u9879\u8bbf\u95ee\u3002<\/p>\n

super\u8bbf\u95ee\u65b9\u6cd5<\/p>\n

public class demos{\r\n    public static void main(String[] args) {\r\n        Sub s=new Sub();\r\n        s.name=\"\u897f\u74dc\u866b\";\r\n        s.eat(\"\u897f\u74dc\");\r\n    }\r\n}\r\n\r\n\r\nclass Super{\r\n    String name;\r\n    int age;\r\n    public void eat(String feed){\r\n        System.out.println(name+\"\u5403\u4e86\"+feed);\r\n    }\r\n}\r\nclass Sub extends Super{\r\n    \/\/\u8981\u4f7f\u7528super\u5173\u952e\u8bcd\u5fc5\u987b\u7ee7\u627f\u7236\u7c7b\r\n    \/\/\u5982\u4f55\u505a\u5230\u4e0e\u7236\u7c7b\u76f8\u540c\u65b9\u6cd5\u4ee5\u53ca\u76f8\u540c\u4ee3\u7801\uff1f\r\n    \/\/\u5982\u679c\u624b\u5199\u4ee3\u7801\u7684\u8bdd\uff0c\u4f1a\u4e0d\u4f1a\u591a\u4f59\uff0c\u9020\u6210\u4ee3\u7801\u7684\u5197\u4f59\u5462\uff1f\r\n    public void eat(String feed){\r\n        \/\/\u4f7f\u7528 super \u5173\u952e\u5b57 \u8c03\u7528\u7236\u7c7b\u7684\u65b9\u6cd5\r\n        \/\/\u524d\u63d0\u5fc5\u987b \u7236\u5b50\u7c7b\u5c5e\u4e8e\u7ee7\u627f\u5173\u7cfb\uff0c\u5426\u5219\u5c5e\u4e8e\u540c\u7c7b\uff0c\u4e0d\u80fd\u8c03\u7528\r\n       super.eat(feed);\r\n    }\r\n}<\/pre>\n
super\u5173\u952e\u5b57\u8bbf\u95ee\u5c5e\u6027<\/p>\n
public class demos{\r\n    public static void main(String[] args) {\r\n        Dog d=new Dog();\r\n        d.method(\"\u6211\u662f\u732b\");\r\n    }\r\n}\r\nclass Animal{\r\n    String name=\"Animal\";\r\n}\r\nclass Dog extends Animal{\r\n    String name=\"Dog\";\r\n    public void method(String name){\r\n        \/\/\u6b64\u65f6 name \u4e3a\u5f62\u53c2\u7684name\r\n        System.out.println(name);\/\/\u6211\u662f\u732b\r\n        \/\/\u6b64\u65f6 name \u4e3a\u5f53\u524d\u5bf9\u8c61\u7684 name\r\n        System.out.println(this.name);\/\/Dog\r\n        \/\/\u6b64\u65f6 name \u4e3a\u5f53\u524d\u5bf9\u8c61\u7236\u7c7b\u7684 name\r\n        System.out.println(super.name);\/\/Animal\r\n    }\r\n}<\/pre>\n
\u7ee7\u627f\u4e2d\u7684\u5bf9\u8c61\u521b\u5efa
\n1.\u5728\u5177\u6709\u7ee7\u627f\u5173\u7cfb\u7684\u5bf9\u8c61\u521b\u5efa\u4e2d\uff0c\u6784\u5efa\u5b50\u7c7b\u5bf9\u8c61\u4f1a\u5148\u6784\u5efa\u7236\u7c7b\u5bf9\u8c61
\n2.\u7531\u7236\u7c7b\u7684\u5171\u6027\u5185\u5bb9\uff0c\u53e0\u52a0\u5b50\u7c7b\u7684\u72ec\u6709\u5185\u5bb9\uff0c\u7ec4\u5408\u6210\u5b8c\u6574\u7684\u5b50\u7c7b\u5bf9\u8c61<\/p>\n
public class demos{\r\n    public static void main(String[] args) {\r\n    }\r\n}\r\nclass Animal{\r\n    String name;\r\n    int age;\r\n    public void eat(){}\r\n}\r\nclass Dog extends Animal{\r\n    \/\/\u7531\u4e8e\u5b50\u7c7b\u7ee7\u627f\u7236\u7c7b\uff0c\u4e5f\u6709name\u5c5e\u6027\u548cage\u5c5e\u6027\u4ee5\u53caeat\u65b9\u6cd5\r\n    \/\/sex\u5c5e\u6027\u5c5e\u4e8e\u8be5\u5bf9\u8c61\u72ec\u6709\u5c5e\u6027\uff0crun\u65b9\u6cd5\u4e5f\u662f\u8be5\u5bf9\u8c61\u72ec\u6709\u7684\u65b9\u6cd5\r\n    String sex;\r\n    public void run(){}\r\n}<\/pre>\n
 <\/p>\n
\u7ee7\u627f\u540e\u7684\u5bf9\u8c61\u6784\u5efa\u8fc7\u7a0b<\/p>\n
public class demos{\r\n    public static void main(String[] args) {\r\n        TaiDi td=new TaiDi();\/\/2.3 \u521b\u5efa\u5b50\u7c7b\u5bf9\u8c61\uff0c\u4f18\u5148\u521b\u5efa\u7236\u7c7b\u5bf9\u8c61\r\n        td.sleep();\r\n    }\r\n}\r\n\/\/1.\u5206\u914d\u7a7a\u95f4Animal\u3001Dog\u3001TaiDi\r\n\/\/2.2 \u521b\u5efa\u7236\u7c7b\u5bf9\u8c61 Object\r\nclass Animal{\/\/2.1 \u521b\u5efa\u7236\u7c7b\u5bf9\u8c61Animal\r\n    \/\/3.2\u521d\u59cb\u5316\u5c5e\u6027\u548c\u65b9\u6cd5 4.2\u6267\u884c\u6784\u9020\u65b9\u6cd5\u4ee3\u7801\r\n    String name;\r\n    public void eat(){System.out.println(\"Animal\u7684eat\u65b9\u6cd5\");}\r\n}\r\nclass Dog extends Animal{\/\/2.\u521b\u5efa\u7236\u7c7b\u5bf9\u8c61Dog\r\n    \/\/3.1\u521d\u59cb\u5316\u5c5e\u6027\u548c\u65b9\u6cd5  4.1\u6267\u884c\u6784\u9020\u65b9\u6cd5\u4ee3\u7801\r\n    int age;\r\n    public void run(){\r\n        super.eat();\/\/\u8c03\u7528\u7236\u7c7b\u7684eat\u65b9\u6cd5\r\n        System.out.println(\"Dog\u7684\u8dd1\u65b9\u6cd5\");\r\n    }\r\n}\r\nclass TaiDi extends Dog{\r\n    \/\/3.\u521d\u59cb\u5316\u5c5e\u6027\u548c\u65b9\u6cd5  4.\u6267\u884c\u6784\u9020\u65b9\u6cd5\u4ee3\u7801\r\n    String weight;\r\n    public void sleep(){\r\n        super.run();\/\/\u8c03\u7528\u7236\u7c7b\u7684run\u65b9\u6cd5\r\n        System.out.println(\"\u6cf0\u8fea\u7684sleep\u65b9\u6cd5\");\r\n    }\r\n}<\/pre>\n
super\u8c03\u7528\u7236\u7c7b\u65e0\u53c2\u6784\u9020<\/p>\n
public class demos{\r\n    public static void main(String[] args) {\r\n        new Tom();\r\n    }\r\n}\r\nclass Animal{\r\n    public Animal(){\r\n        System.out.println(\"Animal \u65e0\u53c2\u6784\u9020\");\r\n    }\r\n}\r\nclass Dog extends Animal{\r\n    public Dog(){\r\n        super();\r\n        System.out.println(\"Dog \u65e0\u53c2\u6784\u9020\");\r\n    }\r\n}\r\nclass Tom extends Dog{\r\n    public Tom(){\r\n        super();\r\n        System.out.println(\"Tom \u65e0\u53c2\u6784\u9020\");\r\n    }\r\n}<\/pre>\n
\/\/\u8fd0\u884c\u7ed3\u679c\u4e3a
\nAnimal\u65e0\u53c2\u6784\u9020
\nDog\u65e0\u53c2\u6784\u9020
\nTom\u65e0\u53c2\u6784\u9020<\/p>\n","protected":false},"excerpt":{"rendered":"
\u9762\u5411\u5bf9\u8c61\u7684\u4e09\u5927\u7279\u6027super\u5173\u952e\u5b57 super\u5173\u952e\u5b57 \u5728\u5b50\u7c7b\u4e2d\uff0c\u53ef\u76f4\u63a5\u8bbf\u95ee\u4ece\u7236\u7c7b\u7ee7\u627f\u5230\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u4f46\u5982\u679c\u7236\u5b50 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-1998","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/1998","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1998"}],"version-history":[{"count":5,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/1998\/revisions"}],"predecessor-version":[{"id":2003,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/1998\/revisions\/2003"}],"wp:attachment":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1998"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1998"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1998"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}