{"id":93923,"date":"2020-04-19T19:42:02","date_gmt":"2020-04-19T11:42:02","guid":{"rendered":"http:\/\/4563.org\/?p=93923"},"modified":"2020-04-19T19:42:02","modified_gmt":"2020-04-19T11:42:02","slug":"%e8%a2%ab-java-%e7%9a%84%e7%bb%a7%e6%89%bf%e7%bb%95%e6%99%95","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=93923","title":{"rendered":"\u88ab Java \u7684\u7ee7\u627f\u7ed5\u6655"},"content":{"rendered":"
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\u88ab Java \u7684\u7ee7\u627f\u7ed5\u6655 <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : Liyiw <\/span> <\/i> 25<\/span> <\/div>\n
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class Person {     int a = 100;      public int getA() {         return a;     } }  class Man extends Person {     int a = 0;      public int getA() {         return a;     } }  class Demo {     public static void main(String[] args) {         Person person = new Man();         System.out.println(person.a); \/\/ 100         System.out.println(person.getA()); \/\/ 0     } } <\/code><\/pre>\n
v \u53cb\u53ef\u4ee5\u63d0\u4f9b\u4e00\u4e0b\u4ec0\u4e48\u5173\u952e\u8bcd\u53ef\u4ee5 google \u5417<\/p>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (12<\/span>)        <\/div>\n
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     \u8cc7\u6df1\u5927\u4f6c : crella <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e3a\u4ec0\u4e48\u662f Person person = new Man();\u800c\u4e0d\u662f Man person = new Man();\u5462
    \u4e0d\u61c2\u5e2e\u95ee                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Liyiw <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @crella \u8bd5\u5377\u9898\u76ee\uff0c\u6211\u4e5f\u60f3\u77e5\u9053\u8fd9\u4e2a\u662f\u4ec0\u4e48\u673a\u5236                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : 0DBBFF <\/span>  <\/div>\n
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                                                                 \u591a\u6001\u554a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : mrmre <\/span>  <\/div>\n
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                                                                 \u5411\u4e0a\u8f6c\u578b\uff0c\u52a8\u6001\u7ed1\u5b9a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : aureole999 <\/span>  <\/div>\n
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                                                                 \u4f60\u95ee\u7684\u662f a \u5c5e\u6027\u4e3a\u4ec0\u4e48\u4e0d\u4e00\u6837\u5417\uff1f
    \u8fd9\u53eb Hiding Fields \u3002\u5b9e\u9645\u5e94\u7528\u4e2d\u4e0d\u63a8\u8350                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : liujan <\/span>  <\/div>\n
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                                                                 java \u5c5e\u6027\u591a\u6001\u3002 \u8bbf\u95ee\u53d8\u91cf\u770b\u58f0\u660e\uff0c\u8bbf\u95ee\u65b9\u6cd5\u770b\u5b9e\u9645\u5bf9\u8c61\u7c7b\u578b                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : charlie21 <\/span>  <\/div>\n
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                                                                 \u76f4\u63a5\u6a21\u4eff\u8303\u4f8b\u7684\u5199\u6cd5\uff0c\u4e0d\u8981\u778e\u5199\uff0c\u641e\u660e\u767d\u8334\u5b57\u56db\u79cd\u5199\u6cd5\u4e5f\u6ca1\u7528                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : zxCoder <\/span>  <\/div>\n
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                                                                 java \u8981\u662f\u54ea\u4e2a\u7248\u672c\u80fd\u628a\u8fd9\u4e9b\u5199\u6cd5\u7981\u6389\u5c31\u597d\u4e86\uff0c\u8003\u8bd5\u5c31\u4e0d\u4f1a\u51fa\u8fd9\u4e9b\u9898\u76ee\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : TuringGunner <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u8fd9\u5c31\u662f\u5e38\u89c4\u7684\u591a\u6001\u5427                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : zhuawadao <\/span>  <\/div>\n
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                                                                 \u5173\u952e\u5b57”\u7b26\u53f7\u5f15\u7528”\uff0c”\u76f4\u63a5\u5f15\u7528”\uff0c”\u9759\u6001\u5206\u6d3e”\uff0c”\u52a8\u6001\u5206\u6d3e”                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : yjxjn <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4f60\u95ee\u7684\u610f\u601d\u662f\u4e0d\u662f\u4e3a\u5565 person.a \u6253\u5370\u51fa\u6765\u662f 100\uff0c\u800c person.getA \u6253\u5370\u51fa\u6765\u662f 0 \uff1f
    \uff08\u90a3\u5c31\u6309\u7167\u6211\u5bf9\u95ee\u9898\u7684\u7406\u89e3\u6765\u56de\u7b54\u8fd9\u4e2a\u95ee\u9898\u4e86\u3002\u3002\u3002\u4e0b\u56de\u8bb0\u5f97\u7ed9\u95ee\u9898\u554a\uff0c\u7529\u7bc7\u4ee3\u7801\u8c01\u77e5\u9053\u4f60\u95ee\u7684\u5565\uff09
    \u8fd9\u4e2a\u662f\u5199\u7684 Java \u4e09\u5927\u7279\u6027\u4e4b\u4e00\uff0c\u591a\u6001\uff0c\u5411\u4e0a\u8f6c\u578b\u3002\u8fd9\u91cc\u6709\u591a\u6001\u7684\u5185\u5bb9
    https:\/\/www.runoob.com\/java\/java-polymorphism.html                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : yjxjn <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @charlie21 \u8bf4\u5b9e\u5728\uff0c\u6211\u662f\u4ece\u6765\u6ca1\u8fd9\u4e48\u5199\u8fc7\uff0c\u56e0\u4e3a\u8fd9\u4e48\u5199\u5bb9\u6613\u6328\u6253\uff0cCR \u7684\u65f6\u5019\u4e5f\u4f1a\u88ab\u8bf4~                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    \u88ab Java \u7684\u7ee7\u627f\u7ed5\u6655 \u8cc7\u6df1\u5927\u4f6c…<\/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\/93923"}],"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=93923"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/93923\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=93923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=93923"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=93923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}