{"id":202621,"date":"2025-05-22T10:57:53","date_gmt":"2025-05-22T02:57:53","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202621\/"},"modified":"2025-05-22T10:57:53","modified_gmt":"2025-05-22T02:57:53","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8java%e5%87%bd%e6%95%b0%e9%87%8d%e8%bd%bd%e4%bc%98%e5%8c%96%e4%bb%a3%e7%a0%81%e5%8f%af%e8%af%bb%e6%80%a7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202621\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Java\u51fd\u6570\u91cd\u8f7d\u4f18\u5316\u4ee3\u7801\u53ef\u8bfb\u6027"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5982\u4f55\u4f7f\u7528Java\u51fd\u6570\u91cd\u8f7d\u4f18\u5316\u4ee3\u7801\u53ef\u8bfb\u6027<\/h1>\n<p>\u54c8\u55bd\uff01\u5927\u5bb6\u597d\uff0c\u5f88\u9ad8\u5174\u53c8\u89c1\u9762\u4e86\uff0c\u6211\u662f\u7684\u4e00\u540d\u4f5c\u8005\uff0c\u4eca\u5929\u7531\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u4f7f\u7528Java\u51fd\u6570\u91cd\u8f7d\u4f18\u5316\u4ee3\u7801\u53ef\u8bfb\u6027\u300b<\/span>\uff0c\u672c\u6587\u4e3b\u8981\u4f1a\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5927\u5bb6\u4e00\u8d77\u5b66\u4e60\u8fdb\u6b65\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u3001\u70b9\u8d5e\u3001\u6536\u85cf\u3001\u8f6c\u53d1! \u4e0b\u9762\u5c31\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p>Java \u51fd\u6570\u91cd\u8f7d\u901a\u8fc7\u5141\u8bb8\u5728\u540c\u4e00\u7c7b\u4e2d\u5b9a\u4e49\u5177\u6709\u76f8\u540c\u540d\u79f0\u4f46\u4e0d\u540c\u53c2\u6570\u7b7e\u540d\u7684\u591a\u4e2a\u65b9\u6cd5\uff0c\u63d0\u9ad8\u4e86\u4ee3\u7801\u53ef\u8bfb\u6027\u3002\u4f18\u70b9\u5305\u62ec\uff1a\u53ef\u8bfb\u6027\uff1a\u76f8\u540c\u64cd\u4f5c\u5177\u6709\u76f8\u540c\u7684\u65b9\u6cd5\u540d\u79f0\uff0c\u65e0\u8bba\u53c2\u6570\u5982\u4f55\u3002\u53ef\u7ef4\u62a4\u6027\uff1a\u7531\u4e8e\u65e0\u9700\u91cd\u590d\u4ee3\u7801\uff0c\u7ef4\u62a4\u4ee3\u7801\u53d8\u5f97\u66f4\u5bb9\u6613\u3002\u7b80\u6d01\u6027\uff1a\u53ef\u4ee5\u7528\u66f4\u5c11\u7684\u4ee3\u7801\u884c\u7f16\u5199\u66f4\u590d\u6742\u7684\u903b\u8f91\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729925080671c8fd864dde.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 Java \u51fd\u6570\u91cd\u8f7d\u4f18\u5316\u4ee3\u7801\u53ef\u8bfb\u6027<\/strong><\/p>\n<p><strong>\u51fd\u6570\u91cd\u8f7d<\/strong>\u662f Java \u4e2d\u4e00\u9879\u5f3a\u5927\u7684\u7279\u6027\uff0c\u5b83\u5141\u8bb8\u60a8\u5728\u540c\u4e00\u4e2a\u7c7b\u4e2d\u5b9a\u4e49\u5177\u6709\u76f8\u540c\u540d\u79f0\u4f46\u4e0d\u540c\u53c2\u6570\u7b7e\u540d\u7684\u65b9\u6cd5\u3002\u8fd9\u5728\u9700\u8981\u4e3a\u63a5\u53d7\u4e0d\u540c\u7c7b\u578b\u6216\u6570\u91cf\u53c2\u6570\u7684\u76f8\u540c\u64cd\u4f5c\u521b\u5efa\u591a\u4e2a\u65b9\u6cd5\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p><strong>\u4f18\u70b9<\/strong><\/p>\n<p>\u51fd\u6570\u91cd\u8f7d\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u4f18\u70b9\uff1a<\/p>\n<ul>\n<li><strong>\u53ef\u8bfb\u6027\uff1a<\/strong>\u5b83\u4f7f\u4ee3\u7801\u66f4\u5bb9\u6613\u7406\u89e3\uff0c\u56e0\u4e3a\u76f8\u540c\u7684\u64cd\u4f5c\u5177\u6709\u540c\u4e00\u4e2a\u65b9\u6cd5\u540d\u79f0\uff0c\u65e0\u8bba\u6240\u6d89\u53ca\u7684\u53c2\u6570\u5982\u4f55\u3002<\/li>\n<li><strong>\u53ef\u7ef4\u62a4\u6027\uff1a<\/strong>\u901a\u8fc7\u6d88\u9664\u91cd\u590d\u4ee3\u7801\uff0c\u5b83\u4f7f\u7ef4\u62a4\u4ee3\u7801\u53d8\u5f97\u66f4\u5bb9\u6613\u3002<\/li>\n<li><strong>\u7b80\u6d01\u6027\uff1a<\/strong>\u5b83\u5141\u8bb8\u60a8\u7528\u66f4\u5c11\u7684\u4ee3\u7801\u884c\u7f16\u5199\u66f4\u590d\u6742\u7684\u903b\u8f91\u3002<\/li>\n<\/ul>\n<p><strong>\u8bed\u6cd5<\/strong><\/p>\n<p>\u51fd\u6570\u91cd\u8f7d\u7684\u65b9\u6cd5\u58f0\u660e\u9075\u5faa\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>methodName(parameterType1, parameterType2, ...) {\n    \/\/ \u65b9\u6cd5\u4f53\n}<\/pre>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u53c2\u6570\u7c7b\u578b\u3001\u6570\u91cf\u6216\u987a\u5e8f\u521b\u5efa\u591a\u4e2a\u5177\u6709\u76f8\u540c\u65b9\u6cd5\u540d\u79f0\u7684\u65b9\u6cd5\u3002<\/p>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8ba9\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u9700\u8981\u8ba1\u7b97\u4e0d\u540c\u5f62\u72b6\u9762\u79ef\u7684\u7a0b\u5e8f\u3002\u6211\u4eec\u4f7f\u7528\u51fd\u6570\u91cd\u8f7d\u6765\u521b\u5efa <code>calculateArea<\/code> \u65b9\u6cd5\u7684\u4e0d\u540c\u7248\u672c\uff1a<\/p>\n<pre>public class Shape {\n\n    public static double calculateArea(Rectangle rectangle) {\n        return rectangle.getWidth() * rectangle.getHeight();\n    }\n\n    public static double calculateArea(Circle circle) {\n        return Math.PI * circle.getRadius() * circle.getRadius();\n    }\n\n    public static double calculateArea(Triangle triangle) {\n        return 0.5 * triangle.getBase() * triangle.getHeight();\n    }\n}<\/pre>\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4e3a <code>Rectangle<\/code>\u3001<code>Circle<\/code> \u548c <code>Triangle<\/code> \u7c7b\u521b\u5efa\u4e86\u5177\u6709\u76f8\u540c\u540d\u79f0\u7684 <code>calculateArea<\/code> \u65b9\u6cd5\u3002\u6bcf\u4e2a\u65b9\u6cd5\u90fd\u63a5\u53d7\u4e00\u4e2a\u7279\u5b9a\u5f62\u72b6\u7c7b\u578b\u7684\u53c2\u6570\uff0c\u5e76\u8ba1\u7b97\u5176\u9762\u79ef\u3002<\/p>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>\u901a\u8fc7\u4f7f\u7528 Java \u51fd\u6570\u91cd\u8f7d\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u6d88\u9664\u91cd\u590d\u4ee3\u7801\u5e76\u4f7f\u4ee3\u7801\u66f4\u6613\u4e8e\u7406\u89e3\u3001\u7ef4\u62a4\u548c\u7b80\u6d01\uff0c\u6781\u5927\u5730\u4f18\u5316\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528Java\u51fd\u6570\u91cd\u8f7d\u4f18\u5316\u4ee3\u7801&#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-202621","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202621","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=202621"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202621\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202621"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}