{"id":128287,"date":"2020-06-18T20:16:32","date_gmt":"2020-06-18T12:16:32","guid":{"rendered":"http:\/\/4563.org\/?p=128287"},"modified":"2020-06-18T20:16:32","modified_gmt":"2020-06-18T12:16:32","slug":"java-%e4%b8%ad%e9%80%9a%e8%bf%87-classname-super-%e8%8e%b7%e5%8f%96%e7%9b%b4%e6%8e%a5%e7%88%b6%e7%b1%bb%e7%9a%84%e5%bc%95%e7%94%a8%e8%8c%83%e5%9b%b4%e7%9a%84%e7%96%91%e6%83%91","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=128287","title":{"rendered":"Java \u4e2d\u901a\u8fc7 ClassName.super \u83b7\u53d6\u76f4\u63a5\u7236\u7c7b\u7684\u5f15\u7528\u8303\u56f4\u7684\u7591\u60d1"},"content":{"rendered":"
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Java \u4e2d\u901a\u8fc7 ClassName.super \u83b7\u53d6\u76f4\u63a5\u7236\u7c7b\u7684\u5f15\u7528\u8303\u56f4\u7684\u7591\u60d1 <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : Febers <\/span> <\/i> 59<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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\u5728\u4e00\u4e2a\u7c7b\u7684\u5b9e\u4f8b\u65b9\u6cd5\u4e2d\uff0c\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7 ClassName.super \uff08 ClassName \u53ef\u7701\u7565\uff09\u83b7\u53d6\u5176\u76f4\u63a5\u7236\u7c7b\u7684\u5b9e\u4f8b\uff0c\u4f46\u662f\u5728\u5176\u4ed6\u7c7b\u4e2d\uff0c\u4f7f\u7528 classInstance.super \u5f15\u7528\u5176\u7236\u7c7b\u5374\u62a5\u9519\uff0cIDE \u62a5\u9519\u4fe1\u606f\u4e3a\uff1aClass name expected here\uff0cJava \u8fd9\u4e48\u505a\u7684\u8003\u8651\u662f\u4ec0\u4e48\u5462\uff1f<\/p>\n

\u5b66\u4e60 Java \u7684\u65b9\u6cd5\u5f15\u7528\u7684\u65f6\u5019\u9047\u5230\u8fd9\u4e2a\u95ee\u9898\u3002\u65b9\u6cd5\u5f15\u7528\u6709\u4e00\u79cd\u60c5\u51b5\u662f\uff0c\u53ef\u4ee5\u5f15\u7528\u8d85\u7c7b\u7684\u65b9\u6cd5\uff0c\u4ee3\u7801\u5982\u4e0b<\/p>\n

public abstract class Animal {      public void action() {         System.out.println(\"The animal is running\");     } }  public class Bird extends Animal {      public void action() {                  System.out.println(\"The bird is flying\");          \/\/\u5f15\u7528\u7236\u7c7b\u65b9\u6cd5         Runnable r = super::action;         r.run();     } }  <\/code><\/pre>\n
\u65b9\u6cd5\u8c03\u7528<\/p>\n
public class Main {      public static void main(String[] args) {          Bird bird = new Bird();          \/\/\u6b63\u5e38\u8fd0\u884c         Runnable r = bird::action;         r.run();          \/\/\u62a5\u9519         Runnable r1 = bird.super::action;     } } <\/code><\/pre>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (16<\/span>)        <\/div>\n
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     \u8cc7\u6df1\u5927\u4f6c : anakinsky <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u6211\u7406\u89e3\u7684\u662f super \u672c\u8d28\u662f\u5173\u952e\u5b57 \u800c\u975e\u67d0\u5bf9\u8c61\u7684\u67d0\u6210\u5458\u53d8\u91cf \/\u51fd\u6570 \u6240\u4ee5\u4f60\u65e0\u6cd5\u4f7f\u7528\u5bf9\u8c61\u8c03\u7528\u5173\u952e\u5b57                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Febers <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @anakinsky #1 \u6709\u8fd9\u79cd\u53ef\u80fd\uff0c\u6211\u7684\u7591\u60d1\u662f\uff0c\u65e2\u7136\u65b9\u6cd5\u5f15\u7528\u6709\u8fd9\u79cd\u5f62\u5f0f\uff0c\u628a\u7236\u7c7b\u7684\u65b9\u6cd5\u5f15\u7528\u9650\u5b9a\u5728\u5b50\u7c7b\u5185\u90e8\uff0c\u5176\u4ed6\u5730\u65b9\u65e0\u6cd5\u8c03\u7528\uff0c\u4f1a\u4e0d\u4f1a\u6ca1\u4ec0\u4e48\u5fc5\u8981<\/p>\n
    \u65e0\u6cd5\u4f7f\u7528\u5bf9\u8c61\u8c03\u7528\u5173\u952e\u5b57\u8fd9\u4ef6\u4e8b\u8fd8\u662f\u5b58\u7591\uff0c\u5b9e\u4f8b\u5316\u975e\u9759\u6001\u5185\u90e8\u7c7b\u7684\u65f6\u5019\uff0c\u5c31\u4f1a\u7528\u5230 OutClass.InnerClass innerClass = outClass.new OutClass.InnerClass() \u8fd9\u79cd\u5f62\u5f0f\uff0c\u90a3\u4e48 outClass \u540e\u9762\u7684 .new \u662f\u4e0d\u662f\u8c03\u7528\u5173\u952e\u5b57\u5462                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : xzceprint <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 super \u662f\u5f53\u524d\u7c7b\u7684\u4e00\u4e2a\u79c1\u6709\u6210\u5458                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : guxingke <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 1. super \u662f\u4e2a\u5173\u952e\u5b57 , \u7528\u5904\u5c31\u662f\u6807\u5fd7\u5f53\u524d\u7c7b\u7684\u7236\u7c7b, \u6b64\u5904\u53ef\u4ee5 \u53cd\u7f16\u8bd1 class \u63a8\u65ad. 
    2. \u5916\u90e8\u4e3a\u4ec0\u4e48\u65e0\u6cd5\u4f7f\u7528 xxx.super.yyy , \u7f16\u8bd1\u5668\u7ea6\u675f. 
    3. \u65b9\u6cd5\u5f15\u7528\u662f\u4e2a\u8bed\u6cd5\u7cd6. \u8ddf\u8fd9\u4e2a\u95ee\u9898\u6ca1\u6709\u76f4\u63a5\u5173\u7cfb. <\/p>\n
    4. \u4e2a\u4eba\u63a8\u65ad, \u4e0d\u4fdd\u8bc1\u6b63\u786e, \u5e76\u6ca1\u6709\u627e\u5230\u5b98\u65b9\u8bf4\u660e.                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : chendy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 https:\/\/docs.oracle.com\/javase\/tutorial\/java\/IandI\/super.html                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Febers <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @guxingke #4 \u53cd\u7f16\u8bd1\u4e4b\u540e\uff0csuper \u786e\u5b9e\u662f\u88ab\u66ff\u6362\u6210 animal \u7684\u5b9e\u4f8b                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Febers <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @chendy #5 \u91cc\u9762\u597d\u50cf\u4e5f\u6ca1\u6709\u66f4\u591a\u7684\u4fe1\u606f\uff5e                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : guyeu <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u56e0\u4e3a\u4e0d\u5b58\u5728\u7236\u7c7b\u7684\u5b9e\u4f8b\u8fd9\u4e48\u4e2a\u4e1c\u897f\uff0c\u4f60\u5b9e\u4f8b\u5316\u4e00\u4e2a\u7c7b\u7684\u65f6\u5019\uff0c\u5b9e\u4f8b\u5316\u51fa\u7684\u5c31\u662f\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5e76\u4e0d\u662f\u7236\u7c7b\u6709\u4e2a\u5bf9\u8c61\u5b50\u7c7b\u6709\u4e2a\u5bf9\u8c61\u3002
    \u4f46\u662f\u5728\u7c7b\u5185\u90e8\u6709\u9700\u6c42\u8bbf\u95ee\u8fd9\u4e2a\u7c7b\u7ee7\u627f\u81ea\u7236\u7c7b\u7684\u65b9\u6cd5\u3001\u5c5e\u6027\uff0c\u6240\u4ee5\u6709\u4e86 super \u8fd9\u4e48\u4e2a\u5173\u952e\u5b57\uff0c\u7528\u6765\u533a\u5206\u5f53\u524d\u7c7b\u548c\u5b83\u7684\u7236\u7c7b\uff0c\u4e0d\u4f1a\u5f15\u8d77\u6df7\u6dc6\u7684\u60c5\u51b5\u4e0b\u4f60\u7701\u7565\u8fd9\u4e2a\u5173\u952e\u5b57\u4e5f\u6ca1\u5173\u7cfb\u3002
    \u4f46\u662f\u5728\u7c7b\u5916\u9762\u4e0d\u80fd\u4f7f\u7528\u8fd9\u4e2a\u5173\u952e\u5b57\uff0c\u8fd9\u4f1a\u7834\u574f\u5bf9\u8c61\u7684\u5c01\u88c5\u548c\u7ee7\u627f\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : KentY <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u53ef\u80fd\u662f\u6211\u89c1\u7684\u4ee3\u7801\u592a\u5c11\u4e86, \u597d\u50cf\u6211\u6ca1\u89c1\u8fc7 object.super.method()\u8fd9\u79cd super \u5939\u5728\u4fe9\u70b9\u513f\u4e2d\u95f4\u7684\u60c5\u51b5.
    “object.super”\u662f\u4ec0\u4e48\u5462, super \u5e94\u8be5\u662f\u6ca1\u6709\u8fd9\u4e2a\u7528\u6cd5\u5427? \u901a\u5e38”super”\u53ea\u5728\u5b50\u7c7b\u81ea\u8eab\u91cc\u7528                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : janus77 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u597d\u50cf\u662f\u5728\u7c7b\u7684\u5185\u90e8\u624d\u80fd\u6b63\u5e38\u4f7f\u7528 super\uff0c\u76f4\u63a5\u7528\u70b9\u53bb\u8c03\u7528\u662f\u4e0d\u884c\u7684                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : mxalbert1996 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u8fd9\u6837\u505a\u6709\u4ec0\u4e48\u610f\u4e49\uff1f\u5141\u8bb8\u5728\u7c7b\u5916\u8bbf\u95ee\u8d85\u7c7b\u6210\u5458\u5b8c\u5168\u8fdd\u53cd\u4e86 OOP \u7684\u539f\u5219\uff0c\u5e76\u4e14\u4e0d\u7ecf\u8fc7\u5b50\u7c7b\u76f4\u63a5\u8c03\u7528\u7236\u7c7b\u65b9\u6cd5\u4f1a\u5bfc\u81f4\u5b50\u7c7b\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Febers <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @guyeu #8 @guyeu #8 \u786e\u5b9e\u662f\u8fd9\u6837\u7684\uff0c\u5176\u5b9e\u95ee\u9898\u5728\u4e8e Function Reference \u6709\u4e00\u79cd\u5f62\u5f0f\u662f TypeName.super::function\uff0c\u7136\u540e\u6211\u53c8\u662f\u5728 Main \u7c7b\u4e2d\u5f15\u7528\uff0c\u60f3\u5199\u51fa\u8fd9\u79cd\u5f62\u5f0f\u53d1\u73b0\u6ca1\u6cd5\u505a\u5230\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Febers <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @KentY #9 \u786e\u5b9e\u662f\u6ca1\u6709\u8fd9\u79cd\u7528\u6cd5\u7684\uff0c\u4e0d\u8fc7\u53ef\u4ee5\u5728\u7c7b\u7684\u5b9e\u4f8b\u65b9\u6cd5\u4e2d\u8c03\u7528 SubClass.super.function\u3002
    \u800c\u6211\u53c8\u60f3\u5728\u5916\u90e8 Main \u7c7b\u4e2d\u8fdb\u884c\u65b9\u6cd5\u5f15\u7528\uff0c\u65b9\u6cd5\u5f15\u7528\u53c8\u6709\u4e00\u4e00\u79cd\u7236\u7c7b\u65b9\u6cd5\u5f15\u7528\u7684\u65b9\u5f0f\uff0c\u6240\u4ee5\u624d\u6709\u8fd9\u4e2a\u95ee\u9898                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Febers <\/span>  <\/div>\n
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                                                                 @janus77 #10 \u5bf9\u7684\uff0c\u8fd8\u5f97\u662f\u5b9e\u4f8b\u65b9\u6cd5                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : KentY <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @Febers \u6ca1\u592a\u61c2\u4f60\u8bf4\u7684”\u5728\u7c7b\u7684\u5b9e\u4f8b\u65b9\u6cd5\u4e2d”SubClass.super.function… 
    \u4f60\u662f\u8bf4\u4f60\u7684\u4f8b\u5b50 \/\/\u62a5\u9519 \u90a3\u884c\u53ef\u4ee5\u5199 Bird.super.action() ?                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Febers <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @KentY #15 \u610f\u601d\u662f \u5728 Bird \u7684\u975e\u9759\u6001\u65b9\u6cd5\u4e2d\u53ef\u4ee5\u8c03\u7528 Bird.super.action() \u5b9e\u73b0\u8c03\u7528\u7236\u7c7b\u65b9\u6cd5\u7684\u76ee\u7684\uff0c\u4f46\u662f\u5728\u5176\u4ed6\u5730\u65b9\uff0c\u60f3\u8c03\u7528\u5c31\u4e0d\u884c
    \u6bd4\u5982\u5728 Main \u4e2d\uff0c\u7b2c\u4e00\u79cd\u8c03\u7528\u5f62\u5f0f\uff0cBird.super.action \u660e\u663e\u4e0d\u884c\uff0c\u56e0\u4e3a Bird \u6ca1\u6709\u5b9e\u4f8b\uff0c\u65e0\u6cd5\u8c03\u7528\u5b83\u81ea\u8eab\u6216\u8005\u5b83\u7236\u7c7b\uff08\u5982\u679c\u6709\u7684\u8bdd\uff09\u7684 action \u8fd9\u4e00\u4e2a\u5b9e\u4f8b\u65b9\u6cd5\uff1b\u7b2c\u4e8c\u79cd\u8c03\u7528\u5f62\u5f0f\uff0cBird bird = new Bird(); bird.super.action()\uff0c\u62a5\u9519\uff0c\u624d\u6709\u4e86\u6211\u7684\u7591\u60d1                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    Java \u4e2d\u901a\u8fc7 ClassNam…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/128287"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=128287"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/128287\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=128287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=128287"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=128287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}