{"id":202889,"date":"2025-05-22T08:33:18","date_gmt":"2025-05-22T00:33:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202889\/"},"modified":"2025-05-22T08:33:18","modified_gmt":"2025-05-22T00:33:18","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8java%e4%b8%ad%e5%ae%9a%e4%b9%89%e9%9d%99%e6%80%81%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202889\/","title":{"rendered":"\u5982\u4f55\u5728Java\u4e2d\u5b9a\u4e49\u9759\u6001\u51fd\u6570"},"content":{"rendered":"

<\/b> <\/p>\n

\u5982\u4f55\u5728Java\u4e2d\u5b9a\u4e49\u9759\u6001\u51fd\u6570<\/h1>\n

\u5b66\u4e60\u77e5\u8bc6\u8981\u5584\u4e8e\u601d\u8003\uff0c\u601d\u8003\uff0c\u518d\u601d\u8003\uff01\u4eca\u5929\u5c0f\u7f16\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u5982\u4f55\u5728Java\u4e2d\u5b9a\u4e49\u9759\u6001\u51fd\u6570\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u5305\u542b<\/span>\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6216\u51c6\u5907\u5b66\u4e60\u6587\u7ae0<\/span>\uff0c\u5c31\u90fd\u4e0d\u8981\u9519\u8fc7\u672c\u6587\u5566~\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff0c\u80fd\u5e2e\u52a9\u5230\u4f60\u5c31\u66f4\u597d\u4e86\uff01<\/span><\/p>\n

<\/p>\n

\u5982\u4f55\u5728Java\u4e2d\u5b9a\u4e49\u9759\u6001\u51fd\u6570<\/strong><\/p>\n

\u4ecb\u7ecd<\/strong><\/p>\n

\u9759\u6001\u51fd\u6570\u6216\u9759\u6001\u65b9\u6cd5\u662fJava\u4e2d\u4e00\u79cd\u7279\u6b8a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u4e0e\u7279\u5b9a\u5bf9\u8c61\u7684\u5b9e\u4f8b\u65e0\u5173\u3002\u5b83\u4eec\u4ee5\u7c7b\u672c\u8eab\u7684\u4f5c\u7528\u57df\u5b58\u5728\uff0c\u53ef\u4ee5\u88ab\u7c7b\u540d\u76f4\u63a5\u8c03\u7528\u3002<\/p>\n

\u8bed\u6cd5<\/strong><\/p>\n

\u5728Java\u4e2d\u5b9a\u4e49\u9759\u6001\u51fd\u6570\uff0c\u53ea\u9700\u5728\u51fd\u6570\u7b7e\u540d\u4e4b\u524d\u6dfb\u52a0static<\/code>\u5173\u952e\u5b57\u5373\u53ef\u3002\u4f8b\u5982\uff1a<\/p>\n

public static void greet() {\n    System.out.println(\"Hello, world!\");\n}<\/pre>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u793a\u4f8b1\uff1a\u8f93\u51fa\u6b22\u8fce\u4fe1\u606f<\/strong><\/p>\n
\u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u9759\u6001\u51fd\u6570\u793a\u4f8b\uff0c\u5b83\u8f93\u51fa\u6b22\u8fce\u4fe1\u606f\uff1a<\/p>\n
public class Main {\n\n    public static void main(String[] args) {\n        greet();\n    }\n\n    public static void greet() {\n        System.out.println(\"Welcome to Java!\");\n    }\n}<\/pre>\n
\u793a\u4f8b2\uff1a\u8ba1\u7b97\u5706\u9762\u79ef<\/strong><\/p>\n
\u8fd9\u4e2a\u9759\u6001\u51fd\u6570\u8ba1\u7b97\u7ed9\u5b9a\u534a\u5f84\u7684\u5706\u7684\u9762\u79ef\uff1a<\/p>\n
public class Main {\n\n    public static void main(String[] args) {\n        double radius = 5.0;\n        double area = calculateArea(radius);\n        System.out.println(\"Area of circle: \" + area);\n    }\n\n    public static double calculateArea(double radius) {\n        return Math.PI * radius * radius;\n    }\n}<\/pre>\n
\u4f18\u70b9<\/strong><\/p>\n
\u4f7f\u7528\u9759\u6001\u51fd\u6570\u5177\u6709\u4ee5\u4e0b\u4f18\u70b9\uff1a<\/p>\n
    \n
  • \u6548\u7387\uff1a<\/strong>\u7531\u4e8e\u9759\u6001\u51fd\u6570\u4e0d\u4f9d\u8d56\u4e8e\u5bf9\u8c61\u5b9e\u4f8b\uff0c\u56e0\u6b64\u5b83\u4eec\u6bd4\u975e\u9759\u6001\u51fd\u6570\u66f4\u9ad8\u6548\u3002<\/li>\n
  • \u53ef\u7ef4\u62a4\u6027\uff1a<\/strong>\u9759\u6001\u51fd\u6570\u5f88\u5bb9\u6613\u8bc6\u522b\u548c\u7ba1\u7406\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e0e\u7279\u5b9a\u5bf9\u8c61\u65e0\u5173\u3002<\/li>\n
  • \u53ef\u590d\u7528\u6027\uff1a<\/strong>\u9759\u6001\u51fd\u6570\u53ef\u4ee5\u4ece\u5176\u4ed6\u7c7b\u8f7b\u677e\u8c03\u7528\uff0c\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u590d\u7528\u6027\u3002<\/li>\n<\/ul>\n
    \u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
      \n
    • \u9759\u6001\u51fd\u6570\u65e0\u6cd5\u8bbf\u95ee\u975e\u9759\u6001\u6210\u5458\u53d8\u91cf\u6216\u65b9\u6cd5\u3002<\/li>\n
    • \u9759\u6001\u51fd\u6570\u53ea\u80fd\u8bbf\u95ee\u7c7b\u7ea7\u7684\u53d8\u91cf\u548c\u65b9\u6cd5\u3002<\/li>\n
    • \u6ee5\u7528\u9759\u6001\u51fd\u6570\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8026\u5408\u7d27\u5bc6\u7684\u4ee3\u7801\u3002<\/li>\n<\/ul>\n
      \u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u5728Java\u4e2d\u5b9a\u4e49\u9759\u6001\u51fd\u6570\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8ejava,\u9759\u6001\u51fd\u6570\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5982\u4f55\u5728Java\u4e2d\u5b9a\u4e49\u9759\u6001\u51fd\u6570 \u5b66...<\/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-202889","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202889","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=202889"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202889\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202889"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202889"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202889"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}