{"id":545,"date":"2022-09-26T23:32:07","date_gmt":"2022-09-26T15:32:07","guid":{"rendered":"https:\/\/qaqaq.top\/?p=545"},"modified":"2022-11-27T12:40:00","modified_gmt":"2022-11-27T04:40:00","slug":"%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e4%b8%8a-%e8%af%be%e5%90%8e%e7%bb%83%e4%b9%a02%ef%bc%9a%e7%b1%bb%e7%9a%84%e8%ae%be%e8%ae%a1-%e5%88%a9%e7%94%a8%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e7%9a%84","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=545","title":{"rendered":"\u9762\u5411\u5bf9\u8c61(\u4e0a)-\u8bfe\u540e\u7ec3\u4e602\uff1a\u7c7b\u7684\u8bbe\u8ba1 \u5229\u7528\u9762\u5411\u5bf9\u8c61\u7684\u7f16\u7a0b\u65b9\u6cd5\uff0c\u8bbe\u8ba1\u7c7bCircle\u8ba1\u7b97\u5706\u7684\u9762\u79ef"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P191;\r\n\/*\r\n * 2. \u5229\u7528\u9762\u5411\u5bf9\u8c61\u7684\u7f16\u7a0b\u65b9\u6cd5\uff0c\u8bbe\u8ba1\u7c7bCircle\u8ba1\u7b97\u5706\u7684\u9762\u79ef\u3002\r\n * \r\n *\/\r\n\/\/\u6d4b\u8bd5\u7c7b\r\npublic class CircleTest {\r\n\tpublic static void main(String&#91;] args) {\r\n\t\t\r\n\t\tCircle c1 = new Circle();\r\n\t\t\r\n\t\tc1.radius = 2.1;\r\n\t\t\r\n\t\t\/\/\u5bf9\u5e94\u65b9\u5f0f\u4e00\uff1a\r\n\/\/\t\tdouble area = c1.findArea();\r\n\/\/\t\tSystem.out.println(\"\u5706\u7684\u9762\u79ef\uff1a\" + area);\r\n\t\t\r\n\t\t\/\/\u5bf9\u5e94\u65b9\u5f0f\u4e8c\uff1a\r\n\t\tc1.findArea();\r\n\t\t\r\n\t\t\r\n\t\t\/\/\u9519\u8bef\u7684\u8c03\u7528\r\n\/\/\t\tdouble area = c1.findArea(3.4);\r\n\/\/\t\tSystem.out.println(area);\r\n\t\t\r\n\t}\r\n}\r\n\r\n\/\/\u5706\r\nclass Circle{\r\n\t\r\n\t\/\/\u5c5e\u6027\r\n\tdouble radius;\r\n\t\r\n\t\/\/\u6c42\u5706\u7684\u9762\u79ef\r\n\t\/\/\u65b9\u5f0f\u4e00\uff1a\r\n\/\/\tpublic double findArea() {\r\n\/\/\t\tdouble area = Math.PI * radius * radius;\r\n\/\/\t\treturn area;\r\n\/\/\t}\r\n\t\r\n\t\/\/\u65b9\u5f0f\u4e8c\uff1a\r\n\tpublic void findArea() {\r\n\t\tdouble area = Math.PI * radius * radius;\r\n\t\tSystem.out.println(\"\u9762\u79ef\u4e3a\uff1a\" + area);\r\n\t}\r\n\t\r\n\t\/\/\u9519\u8bef\u60c5\u51b5\uff1a\r\n\/\/\tpublic double findArea(double r) {\r\n\/\/\t\tdouble area = 3.14 * r * r;\r\n\/\/\t\treturn area;\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-545","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\/545"}],"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=545"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/545\/revisions"}],"predecessor-version":[{"id":546,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/545\/revisions\/546"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}