{"id":202701,"date":"2025-05-22T09:36:51","date_gmt":"2025-05-22T01:36:51","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202701\/"},"modified":"2025-05-22T09:36:51","modified_gmt":"2025-05-22T01:36:51","slug":"java%e5%87%bd%e6%95%b0%e7%9a%84%e4%bc%98%e5%8a%bf%e7%bc%ba%e7%82%b9%e5%a4%a7%e6%8f%ad%e7%a7%98","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202701\/","title":{"rendered":"Java\u51fd\u6570\u7684\u4f18\u52bf\u7f3a\u70b9\u5927\u63ed\u79d8"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java\u51fd\u6570\u7684\u4f18\u52bf\u7f3a\u70b9\u5927\u63ed\u79d8<\/h1>\n<p>\u5728IT\u884c\u4e1a\u8fd9\u4e2a\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u5f88\u5feb\u7684\u884c\u4e1a\uff0c\u53ea\u6709\u4e0d\u505c\u6b62\u7684\u5b66\u4e60\uff0c\u624d\u4e0d\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u5982\u679c\u4f60\u662f\u6587\u7ae0\u5b66\u4e60\u8005\uff0c\u90a3\u4e48\u672c\u6587\u300aJava\u51fd\u6570\u7684\u4f18\u52bf\u7f3a\u70b9\u5927\u63ed\u79d8\u300b\u5c31\u5f88\u9002\u5408\u4f60\uff01\u672c\u7bc7\u5185\u5bb9\u4e3b\u8981\u5305\u62ec##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n<p>Java \u51fd\u6570\uff08\u65b9\u6cd5\uff09\u4f5c\u4e3a\u53ef\u91cd\u7528\u4ee3\u7801\u5757\uff0c\u63d0\u4f9b\u4ee3\u7801\u91cd\u7528\u3001\u6a21\u5757\u5316\u3001\u5c01\u88c5\u3001\u6d4b\u8bd5\u6027\u3001\u53ef\u6269\u5c55\u6027\u7b49\u4f18\u70b9\uff0c\u4f46\u4e5f\u6709\u6027\u80fd\u5f00\u9500\u3001\u8fc7\u5ea6\u5c01\u88c5\u3001\u547d\u540d\u51b2\u7a81\u3001\u6808\u7a7a\u95f4\u6d88\u8017\u7b49\u7f3a\u70b9\u3002\u4f8b\u5982\uff0c\u8ba1\u7b97\u5706\u9762\u79ef\u7684 Java \u51fd\u6570\u5c01\u88c5\u4e86\u8ba1\u7b97\u903b\u8f91\uff0c\u5141\u8bb8\u6a21\u5757\u5316\u548c\u53ef\u91cd\u7528\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729934330671cb3facc14c.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u51fd\u6570\uff1a\u4f18\u52bf\u4e0e\u52a3\u52bf\u63ed\u79d8<\/strong><\/p>\n<p>Java \u51fd\u6570\uff0c\u4e5f\u79f0\u65b9\u6cd5\uff0c\u662f Java \u4e2d\u6267\u884c\u7279\u5b9a\u4efb\u52a1\u7684\u53ef\u91cd\u7528\u4ee3\u7801\u5757\u3002\u5b83\u4eec\u6709\u52a9\u4e8e\u5206\u89e3\u4ee3\u7801\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<p><strong>Java \u51fd\u6570\u7684\u4f18\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u4ee3\u7801\u91cd\u7528\uff1a<\/strong>\u51fd\u6570\u5141\u8bb8\u4ee3\u7801\u91cd\u7528\uff0c\u4ece\u800c\u51cf\u5c11\u5197\u4f59\u548c\u9519\u8bef\u3002<\/li>\n<li><strong>\u6a21\u5757\u5316\uff1a<\/strong>\u51fd\u6570\u5c06\u4ee3\u7801\u5206\u89e3\u6210\u8f83\u5c0f\u7684\u3001\u53ef\u7ba1\u7406\u7684\u5757\uff0c\u63d0\u9ad8\u4e86\u53ef\u8bfb\u6027\u548c\u7ef4\u62a4\u6027\u3002<\/li>\n<li><strong>\u5c01\u88c5\uff1a<\/strong>\u51fd\u6570\u5c01\u88c5\u4e86\u5185\u90e8\u5b9e\u73b0\u7ec6\u8282\uff0c\u5141\u8bb8\u7528\u6237\u4e13\u6ce8\u4e8e\u51fd\u6570\u7684\u63a5\u53e3\u3002<\/li>\n<li><strong>\u6d4b\u8bd5\u6027\uff1a<\/strong>\u51fd\u6570\u53ef\u4ee5\u8f7b\u677e\u5730\u8fdb\u884c\u5355\u5143\u6d4b\u8bd5\uff0c\u4ece\u800c\u9a8c\u8bc1\u5176\u6b63\u786e\u6027\u3002<\/li>\n<li><strong>\u53ef\u6269\u5c55\u6027\uff1a<\/strong>\u901a\u8fc7\u6dfb\u52a0\u6216\u4fee\u6539\u51fd\u6570\uff0c\u53ef\u4ee5\u8f7b\u677e\u6269\u5c55\u5e94\u7528\u7a0b\u5e8f\u7684\u529f\u80fd\u3002<\/li>\n<\/ul>\n<p><strong>Java \u51fd\u6570\u7684\u7f3a\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u6027\u80fd\u5f00\u9500\uff1a<\/strong>\u8c03\u7528\u51fd\u6570\u9700\u8981\u5206\u914d\u5185\u5b58\u5e76\u8bbe\u7f6e\u5e27\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u8f7b\u5fae\u7684\u6027\u80fd\u5f00\u9500\u3002<\/li>\n<li><strong>\u8fc7\u5ea6\u5c01\u88c5\uff1a<\/strong>\u5982\u679c\u51fd\u6570\u88ab\u8fc7\u5ea6\u5c01\u88c5\uff0c\u5b83\u53ef\u80fd\u4f1a\u9690\u85cf\u91cd\u8981\u7684\u5b9e\u73b0\u7ec6\u8282\uff0c\u4f7f\u8c03\u8bd5\u548c\u7ef4\u62a4\u53d8\u5f97\u56f0\u96be\u3002<\/li>\n<li><strong>\u547d\u540d\u51b2\u7a81\uff1a<\/strong>\u5f53\u591a\u4e2a\u7c7b\u6216\u5305\u4e2d\u5b58\u5728\u540c\u540d\u51fd\u6570\u65f6\uff0c\u53ef\u80fd\u4f1a\u53d1\u751f\u547d\u540d\u51b2\u7a81\u3002<\/li>\n<li><strong>\u6808\u7a7a\u95f4\u6d88\u8017\uff1a<\/strong>\u6df1\u5ea6\u5d4c\u5957\u51fd\u6570\u8c03\u7528\u53ef\u80fd\u4f1a\u6d88\u8017\u5927\u91cf\u7684\u6808\u7a7a\u95f4\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u5bfc\u81f4\u6808\u6ea2\u51fa\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n<p>\u8003\u8651\u4e00\u4e2a\u8ba1\u7b97\u5706\u7684\u9762\u79ef\u7684 Java \u51fd\u6570\uff1a<\/p>\n<pre>import java.util.Scanner;\n\npublic class CircleAreaCalculator {\n\n    private static double calculateArea(double radius) {\n        return Math.PI * radius * radius;\n    }\n\n    public static void main(String[] args) {\n        Scanner scanner = new Scanner(System.in);\n\n        \/\/ \u8f93\u5165\u5706\u7684\u534a\u5f84\n        System.out.println(\"\u8bf7\u8f93\u5165\u5706\u7684\u534a\u5f84\uff1a\");\n        double radius = scanner.nextDouble();\n\n        \/\/ \u8ba1\u7b97\u5e76\u8f93\u51fa\u9762\u79ef\n        double area = calculateArea(radius);\n        System.out.println(\"\u5706\u7684\u9762\u79ef\u4e3a\uff1a\" + area);\n    }\n}<\/pre>\n<p>\u8fd9\u4e2a\u51fd\u6570\u5c01\u88c5\u4e86\u8ba1\u7b97\u5706\u9762\u79ef\u7684\u903b\u8f91\uff0c\u5e76\u5141\u8bb8\u4ee5\u6a21\u5757\u5316\u548c\u53ef\u91cd\u7528\u7684\u65b9\u5f0f\u5728\u5176\u4ed6\u4ee3\u7801\u4e2d\u4f7f\u7528\u3002<\/p>\n<p>\u672c\u7bc7\u5173\u4e8e\u300aJava\u51fd\u6570\u7684\u4f18\u52bf\u7f3a\u70b9\u5927\u63ed\u79d8\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u51fd\u6570\u7684\u4f18\u52bf\u7f3a\u70b9\u5927\u63ed\u79d8 \u5728&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202701","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202701"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202701\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}