{"id":40327,"date":"2024-11-26T16:06:34","date_gmt":"2024-11-26T08:06:34","guid":{"rendered":"https:\/\/fwq.ai\/blog\/40327\/"},"modified":"2024-11-26T16:06:34","modified_gmt":"2024-11-26T08:06:34","slug":"java-%e4%b8%adoverride-%e7%9a%84%e4%bd%9c%e7%94%a8%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/40327\/","title":{"rendered":"Java \u4e2d@Override \u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

\"Java<\/p>\n

\u5f53\u6211\u4eec\u6269\u5c55\u4e00\u4e2a\u7c7b\u5e76\u5b9e\u73b0\u7236\u7c7b\u7684\u65b9\u6cd5\u65f6\uff0c\u8981\u4f7f\u7528@override\u6ce8\u89e3\uff1f\u5982\u679c\u6211\u4eec\u4e0d\u4f7f\u7528\u5b83\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f\u5373\u4f7f\u7a0b\u5e8f\u7f16\u8bd1\u4e86\u8fd8\u9700\u8981\u5417\uff1f\u8fd9\u4e9b\u53ef\u80fd\u662f\u4e00\u4e9b\u4e0ejava\u4e2d\u662f\u5426\u4f7f\u7528@override\u6ce8\u89e3\u76f8\u5173\u7684\u95ee\u9898\u3002<\/p>\n

java\u4e2d\u7684@override\u662f\u4ec0\u4e48\uff1f <\/h2>\n

@override \u6ce8\u89e3\u662f\u4e00\u4e2a java \u6ce8\u89e3\uff0c\u7528\u4e8e\u6307\u793a\u5b50\u7c7b\u7684\u65b9\u6cd5\u6b63\u5728\u91cd\u5199\u5176\u8d85\u7c7b\u7684\u65b9\u6cd5\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u7528\u4e8e\u786e\u4fdd\u6211\u4eec\u8981\u91cd\u5199\u7684\u65b9\u6cd5\u5b9e\u9645\u4e0a\u5b58\u5728\u4e8e\u8d85\u7c7b\u4e2d\u3002\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u7f16\u8bd1\u5668\u5c06\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u662f @override \u6ce8\u89e3\u7684\u4e00\u822c\u5b9a\u4e49\uff0c\u5c3d\u7ba1\u6211\u4eec\u5c06\u5728\u4e0b\u9762\u770b\u5230\u66f4\u591a\u7ec6\u8282\u3002<\/p>\n

\u6211\u4eec\u7684 animal \u7c7b\u6709\u4e24\u4e2a\u65b9\u6cd5\uff1asound \u548c eat\uff0c\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u901a\u8fc7\u63a7\u5236\u53f0\u6253\u5370\u901a\u7528\u6d88\u606f\u3002\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f8b\u6765\u9a8c\u8bc1\u8fd9\u4e9b\u65b9\u6cd5\u7684\u884c\u4e3a\u3002<\/p>\n

public class animal {\n    public void sound() {\n        system.out.println(\"generic animal sound\");\n    }\n\n    public void eat() {\n        system.out.println(\"generic animal eating\");\n    }\n}\n<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
public static void main(string[] args) {\n    animal animal = new animal();\n    animal.sound(); \/\/ generic animal sound\n    animal.eat(); \/\/ generic animal eating\n}\n<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u6709 cat \u7c7b\uff0c\u5b83\u6269\u5c55 animal \u5e76\u91cd\u5199\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u4ee5\u6253\u5370\u6765\u81ea\u732b\u7684\u7279\u5b9a\u6d88\u606f\uff0c\u8003\u8651\u5230 @override \u6ce8\u91ca\u672a\u5728\u4efb\u4f55\u65b9\u6cd5\u4e2d\u4f7f\u7528\u3002<\/p>\n
public class cat extends animal {\n    public void sound() {\n        system.out.println(\"meow meow\");\n    }\n\n    public void eat() {\n        system.out.println(\"cat is eating\");\n    }\n}\n<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728 cat \u7c7b\u4e2d\uff0cide \u672c\u8eab\u4f1a\u5411\u6211\u4eec\u663e\u793a\u4e00\u4e2a\u8b66\u544a<\/em>\uff0c\u6307\u793a\u6709\u5fc5\u8981\u5728\u6bcf\u4e2a\u91cd\u5199\u65b9\u6cd5\u4e4b\u524d\u6dfb\u52a0 @override \u6ce8\u91ca\uff0c\u5230\u76ee\u524d\u4e3a\u6b62\u4e00\u5207\u987a\u5229\uff0c\u5982\u679c\u6211\u4eec\u521b\u5efa\u8be5\u7c7b\u7684\u5b9e\u4f8b\u5e76\u4e14\u8c03\u7528\u65b9\u6cd5\uff0c\u7a0b\u5e8f\u5c06\u7f16\u8bd1\u5e76\u8fd0\u884c\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n
public static void main(string[] args) {\n    animal animal = new cat();\n    animal.sound(); \/\/ meow meow\n    animal.eat(); \/\/ cat is eating\n}\n<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
ide\u672c\u8eab\u6307\u793a\u5e94\u8be5\u4f7f\u7528@override\u6ce8\u89e3\u7684\u539f\u56e0\u662f\u56e0\u4e3a\u8be5\u6ce8\u89e3\u5141\u8bb8\u6211\u4eec\u9a8c\u8bc1\u6211\u4eec\u8981\u91cd\u5199\u7684\u65b9\u6cd5\u662f\u5426\u786e\u5b9e\u5b58\u5728\u4e8e\u8d85\u7c7b\u4e2d\u5e76\u4e14\u662f\u5426\u88ab\u6b63\u786e\u6269\u5c55\u3002<\/p>\n
\u4f8b\u5982\uff0c\u5982\u679c\u5c06 sound \u65b9\u6cd5\u66f4\u6539\u4e3a sound\uff0c\u5219\u6ca1\u6709\u4efb\u4f55\u8b66\u544a\u6211\u4eec\u8d85\u7c7b\u65b9\u6cd5\u6ca1\u6709\u88ab\u8986\u76d6\u3002\u8003\u8651\u5230\u8fd9\u4e00\u70b9\uff0c\u5982\u679c\u6211\u4eec\u518d\u6b21\u8fd0\u884c\u524d\u9762\u7684\u793a\u4f8b\uff0c\u5c06\u6267\u884c\u7684\u58f0\u97f3\u65b9\u6cd5\u5c06\u662f animal \u8d85\u7c7b\u7684\u65b9\u6cd5\u3002<\/p>\n
public class cat extends animal {\n    public void soound() {\n        system.out.println(\"meow meow\");\n    }\n\n    public void eat() {\n        system.out.println(\"cat is eating\");\n    }\n}\n<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
public static void main(string[] args) {\n    animal animal = new cat();\n    animal.sound(); \/\/ generic animal sound\n    animal.eat(); \/\/ cat is eating\n}\n<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u662f\u4e00\u4e2a\u95ee\u9898\uff0c\u56e0\u4e3a\u4ee3\u7801\u7684\u884c\u4e3a\u4e0d\u7b26\u5408\u9884\u671f\uff0c\u5e76\u4e14\u67e5\u627e\u9519\u8bef\u53ef\u80fd\u9700\u8981\u4e00\u4e9b\u65f6\u95f4\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u5982\u679c\u6bcf\u4e2a\u65b9\u6cd5\u90fd\u6709 @override \u6ce8\u89e3\uff0c\u8fd9\u4e0d\u4f1a\u4ee3\u8868\u95ee\u9898\uff0c\u56e0\u4e3a\u7f16\u8bd1\u5668\u4f1a\u81ea\u52a8\u629b\u51fa\u4e00\u4e2a\u9519\u8bef\uff0c\u8868\u660e\u6211\u4eec\u8981\u91cd\u5199\u7684\u65b9\u6cd5\u5728\u8d85\u7c7b\u4e2d\u4e0d\u5b58\u5728\uff0c\u5e76\u4e14 ide \u672c\u8eab\u4f1a\u663e\u793a\u8b66\u544a<\/em>\u3002<\/p>\n
public class Cat extends Animal {\n    @Override\n    public void sound() {\n        System.out.println(\"Meow meow\");\n    }\n\n    @Override\n    public void eat() {\n        System.out.println(\"Cat is eating\");\n    }\n}\n<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
@override \u7684\u76ee\u7684\u4e0d\u4ec5\u662f\u58f0\u660e\u610f\u56fe\u8868\u8fbe\uff0c\u8fd8\u53ef\u4ee5\u5e2e\u52a9\u5728\u7f16\u8bd1\u65f6\u68c0\u6d4b\u9519\u8bef\u5e76\u786e\u4fdd\u4ee3\u7801\u6309\u9884\u671f\u8fd0\u884c\uff0c\u4e3a\u7a0b\u5e8f\u5458\u63d0\u4f9b\u5b89\u5168\u6027\u548c\u4fe1\u5fc3\u3002\u56e0\u6b64\uff0c\u6bcf\u5f53\u91cd\u5199\u8d85\u7c7b\u7684\u65b9\u6cd5\u65f6\uff0c\u6700\u597d\u4f7f\u7528\u6ce8\u91ca\uff0c\u5373\u4f7f\u7a0b\u5e8f\u7f16\u8bd1\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u4ee5\u4e0a\u5c31\u662fJava \u4e2d@Override \u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u6211\u4eec\u6269\u5c55\u4e00\u4e2a\u7c7b\u5e76\u5b9e\u73b0\u7236\u7c7b\u7684\u65b9\u6cd5\u65f6\uff0c\u8981\u4f7f\u7528@override\u6ce8\u89e3\uff1f\u5982\u679c\u6211\u4eec\u4e0d\u4f7f\u7528\u5b83\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f\u5373\u4f7f\u7a0b\u5e8f\u7f16\u8bd1\u4e86\u8fd8\u9700\u8981\u5417\uff1f\u8fd9\u4e9b\u53ef\u80fd\u662f\u4e00\u4e9b\u4e0ejava\u4e2d\u662f\u5426\u4f7f\u7528@override\u6ce8\u89e3\u76f8\u5173\u7684\u95ee\u9898\u3002 java\u4e2d\u7684@override\u662f\u4ec0\u4e48\uff1f @override \u6ce8\u89e3\u662f\u4e00\u4e2a java \u6ce8\u89e3\uff0c\u7528\u4e8e\u6307\u793a\u5b50\u7c7b\u7684\u65b9\u6cd5\u6b63\u5728\u91cd\u5199\u5176\u8d85\u7c7b\u7684\u65b9\u6cd5\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u7528\u4e8e\u786e\u4fdd\u6211\u4eec\u8981\u91cd\u5199\u7684\u65b9\u6cd5\u5b9e\u9645\u4e0a\u5b58\u5728\u4e8e\u8d85\u7c7b\u4e2d\u3002\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u7f16\u8bd1\u5668\u5c06\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u662f @override \u6ce8\u89e3\u7684\u4e00\u822c\u5b9a\u4e49\uff0c\u5c3d\u7ba1\u6211\u4eec\u5c06\u5728\u4e0b\u9762\u770b\u5230\u66f4\u591a\u7ec6\u8282\u3002 \u6211\u4eec\u7684 animal \u7c7b\u6709\u4e24\u4e2a\u65b9\u6cd5\uff1asound \u548c eat\uff0c\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u901a\u8fc7\u63a7\u5236\u53f0\u6253\u5370\u901a\u7528\u6d88\u606f\u3002\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f8b\u6765\u9a8c\u8bc1\u8fd9\u4e9b\u65b9\u6cd5\u7684\u884c\u4e3a\u3002 public class animal { public void sound() { system.out.println(“generic animal sound”); } public void eat() { system.out.println(“generic animal eating”); } } \u767b\u5f55\u540e\u590d\u5236 public static void main(string[] args) { animal animal = new animal(); animal.sound(); \/\/ generic animal sound animal.eat(); \/\/ generic animal […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-40327","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/40327","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=40327"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/40327\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=40327"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=40327"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=40327"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}