{"id":717,"date":"2022-10-06T22:51:09","date_gmt":"2022-10-06T14:51:09","guid":{"rendered":"https:\/\/qaqaq.top\/?p=717"},"modified":"2022-11-27T12:39:56","modified_gmt":"2022-11-27T04:39:56","slug":"%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e4%b8%ad-%e8%99%9a%e6%8b%9f%e6%96%b9%e6%b3%95%e8%b0%83%e7%94%a8%e7%9a%84%e5%86%8d%e7%90%86%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=717","title":{"rendered":"\u9762\u5411\u5bf9\u8c61(\u4e2d)-\u865a\u62df\u65b9\u6cd5\u8c03\u7528\u7684\u518d\u7406\u89e3"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P283;\r\n\r\nimport java.util.Random;\r\n\r\n\/\/\u9762\u8bd5\u9898\uff1a\u591a\u6001\u662f\u7f16\u8bd1\u65f6\u884c\u4e3a\u8fd8\u662f\u8fd0\u884c\u65f6\u884c\u4e3a\uff1f\r\n\t\t\t\/\/\u8fd0\u884c\u65f6\u884c\u4e3a\r\n\r\n\/\/\u8bc1\u660e\u5982\u4e0b\uff1a\r\nclass Animal  {\r\n \r\n\tprotected void eat() {\r\n\t\tSystem.out.println(\"animal eat food\");\r\n\t}\r\n}\r\n\r\nclass Cat  extends Animal  {\r\n \r\n\tprotected void eat() {\r\n\t\tSystem.out.println(\"cat eat fish\");\r\n\t}\r\n}\r\n\r\nclass Dog  extends Animal  {\r\n \r\n\tpublic void eat() {\r\n\t\tSystem.out.println(\"Dog eat bone\");\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass Sheep  extends Animal  {\r\n \r\n\r\n\tpublic void eat() {\r\n\t\tSystem.out.println(\"Sheep eat grass\");\r\n\r\n\t}\r\n\r\n \r\n}\r\n\r\npublic class InterviewTest {\r\n\r\n\tpublic static Animal  getInstance(int key) {\r\n\t\tswitch (key) {\r\n\t\tcase 0:\r\n\t\t\treturn new Cat ();\r\n\t\tcase 1:\r\n\t\t\treturn new Dog ();\r\n\t\tdefault:\r\n\t\t\treturn new Sheep ();\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tpublic static void main(String&#91;] args) {\r\n\t\tint key = new Random().nextInt(3);\r\n\r\n\t\tSystem.out.println(key);\r\n\r\n\t\tAnimal  animal = getInstance(key);\r\n\t\t\r\n\t\tanimal.eat();\r\n\t\t \r\n\t}\r\n\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-717","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\/717"}],"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=717"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/717\/revisions"}],"predecessor-version":[{"id":718,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/717\/revisions\/718"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}