{"id":834,"date":"2022-10-10T22:44:18","date_gmt":"2022-10-10T14:44:18","guid":{"rendered":"https:\/\/qaqaq.top\/?p=834"},"modified":"2022-11-27T12:39:54","modified_gmt":"2022-11-27T04:39:54","slug":"%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e4%b8%8b-static%e7%9a%84%e5%ba%94%e7%94%a8%e4%b8%be%e4%be%8b","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=834","title":{"rendered":"\u9762\u5411\u5bf9\u8c61(\u4e0b)-static\u7684\u5e94\u7528\u4e3e\u4f8b"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P322;\r\n\/\/static\u5173\u952e\u5b57\u7684\u5e94\u7528\r\npublic class CircleTest {\r\n\r\n\tpublic static void main(String&#91;] args) {\r\n\t\tCircle c1 = new Circle();\r\n\t\tCircle c2 = new Circle();\r\n\t\tCircle c3 = new Circle(3.4);\r\n\t\t\r\n\t\tSystem.out.println(\"c1\u7684id\uff1a\" + c1.getId());\r\n\t\tSystem.out.println(\"c2\u7684id\uff1a\" + c2.getId());\r\n\t\tSystem.out.println(\"c3\u7684id\uff1a\" + c3.getId());\r\n\t\t\r\n\t\tSystem.out.println(\"\u521b\u5efa\u7684\u5706\u7684\u4e2a\u6570\u4e3a\uff1a\" + Circle.getTotal());\r\n\t\t\r\n\t}\t\t\r\n}\r\n\r\nclass Circle{\r\n\t\r\n\tprivate double radius;\r\n\tprivate int id;\/\/\u81ea\u52a8\u8d4b\u503c\r\n\t\r\n\tpublic Circle() {\r\n\t\tid = init++;\r\n\t\ttotal++;\r\n\t}\r\n\t\r\n\tpublic Circle(double radius) {\r\n\t\tthis();\r\n\/\/\t\tid = init++;\r\n\/\/\t\ttotal++;\r\n\t\tthis.radius = radius;\r\n\t}\r\n\t\r\n\tprivate static int total;\/\/\u8bb0\u5f55\u521b\u5efa\u7684\u5706\u7684\u4e2a\u6570\r\n\tprivate static int init = 1001;\/\/static\u58f0\u660e\u7684\u5c5e\u6027\u88ab\u6240\u6709\u5bf9\u8c61\u6240\u5171\u4eab\r\n\t\r\n\tpublic double findArea() {\r\n\t\treturn 3.14 * radius * radius;\r\n\t}\r\n\r\n\tpublic double getRadius() {\r\n\t\treturn radius;\r\n\t}\r\n\r\n\tpublic void setRadius(double radius) {\r\n\t\tthis.radius = radius;\r\n\t}\r\n\r\n\tpublic int getId() {\r\n\t\treturn id;\r\n\t}\r\n\r\n\tpublic static int getTotal() {\r\n\t\treturn total;\r\n\t}\r\n\t\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-834","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\/834"}],"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=834"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/834\/revisions"}],"predecessor-version":[{"id":835,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/834\/revisions\/835"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}