{"id":203048,"date":"2025-05-22T12:39:27","date_gmt":"2025-05-22T04:39:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203048\/"},"modified":"2025-05-22T12:39:27","modified_gmt":"2025-05-22T04:39:27","slug":"java-%e5%87%bd%e6%95%b0%e5%92%8c%e6%96%b9%e6%b3%95%e7%9a%84%e6%89%a7%e8%a1%8c%e6%95%88%e7%8e%87%e6%9c%89%e5%93%aa%e4%ba%9b%e5%b7%ae%e5%bc%82%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203048\/","title":{"rendered":"Java \u51fd\u6570\u548c\u65b9\u6cd5\u7684\u6267\u884c\u6548\u7387\u6709\u54ea\u4e9b\u5dee\u5f02\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java \u51fd\u6570\u548c\u65b9\u6cd5\u7684\u6267\u884c\u6548\u7387\u6709\u54ea\u4e9b\u5dee\u5f02\uff1f<\/h1>\n<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava \u51fd\u6570\u548c\u65b9\u6cd5\u7684\u6267\u884c\u6548\u7387\u6709\u54ea\u4e9b\u5dee\u5f02\uff1f\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p>\u5728 Java \u4e2d\uff0c\u51fd\u6570\u548c\u65b9\u6cd5\u901a\u5e38\u53ef\u4ee5\u4e92\u6362\u4f7f\u7528\uff0c\u4f46\u7ec6\u5fae\u5dee\u522b\u4f1a\u5f71\u54cd\u6267\u884c\u6548\u7387\u3002\u65b9\u6cd5\u4e0e\u7c7b\u5173\u8054\uff0c\u8c03\u7528\u5b83\u9700\u8981\u52a0\u8f7d\u7c7b\uff0c\u800c\u5728\u5806\u4e2d\u5206\u914d\u5185\u5b58\uff1b\u51fd\u6570\u72ec\u7acb\u4e8e\u7c7b\uff0c\u5728\u6808\u4e2d\u5206\u914d\u5185\u5b58\uff0c\u901f\u5ea6\u66f4\u5feb\u3002\u793a\u4f8b\u4e2d\uff0c\u51fd\u6570\u6bd4\u65b9\u6cd5\u6267\u884c\u5f97\u66f4\u5feb\uff0c\u56e0\u4e3a\u907f\u514d\u4e86\u7c7b\u52a0\u8f7d\u548c\u6808\u5185\u5b58\u5206\u914d\u5f00\u9500\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730029419671e276b83961.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u51fd\u6570\u548c\u65b9\u6cd5\u5728\u6267\u884c\u6548\u7387\u4e0a\u7684\u5dee\u5f02<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c&#8221;\u51fd\u6570&#8221;\u548c&#8221;\u65b9\u6cd5&#8221;\u8fd9\u4e24\u4e2a\u672f\u8bed\u53ef\u4ee5\u4e92\u6362\u4f7f\u7528\uff0c\u4f46\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u4e00\u4e9b\u7ec6\u5fae\u7684\u5dee\u5f02\uff0c\u53ef\u80fd\u4f1a\u5f71\u54cd\u6267\u884c\u6548\u7387\u3002<\/p>\n<p><strong>\u5b9a\u4e49<\/strong><\/p>\n<ul>\n<li><strong>\u65b9\u6cd5<\/strong>\u662f\u7c7b\u7684\u4e00\u90e8\u5206\uff0c\u5b83\u5bf9\u8be5\u7c7b\u7684\u72b6\u6001\u8fdb\u884c\u64cd\u4f5c\u6216\u8fd4\u56de\u6709\u5173\u8be5\u72b6\u6001\u7684\u4fe1\u606f\u3002<\/li>\n<li><strong>\u51fd\u6570<\/strong>\u662f\u4ece\u4e00\u4e2a\u6216\u591a\u4e2a\u8f93\u5165\u4ea7\u751f\u8f93\u51fa\u7684\u7368\u7acb\u5355\u5143\uff0c\u4e0e\u7c7b\u65e0\u5173\u3002<\/li>\n<\/ul>\n<p><strong>\u6267\u884c\u6548\u7387\u5dee\u5f02<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u51fd\u6570\u548c\u65b9\u6cd5\u7684\u6267\u884c\u6548\u7387\u4e4b\u95f4\u4e3b\u8981\u7684\u5dee\u5f02\u5728\u4e8e\uff1a<\/p>\n<ul>\n<li><strong>\u7c7b\u52a0\u8f7d\u5f00\u9500\uff1a<\/strong>\u5f53\u8c03\u7528\u4e00\u4e2a\u65b9\u6cd5\u65f6\uff0c\u9996\u5148\u5fc5\u987b\u52a0\u8f7d\u8be5\u65b9\u6cd5\u6240\u5c5e\u7684\u7c7b\u3002\u8fd9\u4f1a\u4ea7\u751f\u5f00\u9500\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u5927\u578b\u6216\u590d\u6742\u7684\u7c7b\u3002\u51fd\u6570\u6ca1\u6709\u8fd9\u79cd\u5f00\u9500\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e0d\u4e0e\u4efb\u4f55\u7c7b\u5173\u8054\u3002<\/li>\n<li><strong>\u5185\u5b58\u5206\u914d\uff1a<\/strong>\u5f53\u8c03\u7528\u4e00\u4e2a\u65b9\u6cd5\u65f6\uff0c\u4f1a\u4e3a\u5176\u5728\u6808\u4e2d\u5206\u914d\u5185\u5b58\u3002\u51fd\u6570\u6ca1\u6709\u8fd9\u79cd\u5f00\u9500\uff0c\u56e0\u4e3a\u5b83\u4eec\u5728\u5806\u4e2d\u5206\u914d\u5185\u5b58\u3002 \u5806\u4e2d\u5206\u914d\u7684\u5185\u5b58\u6bd4\u6808\u4e2d\u5206\u914d\u7684\u5185\u5b58\u91ca\u653e\u901f\u5ea6\u8f83\u6162\uff0c\u56e0\u6b64\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b9e\u6218\u6848\u4f8b\uff0c\u8bf4\u660e\u51fd\u6570\u548c\u65b9\u6cd5\u5728\u6267\u884c\u6548\u7387\u4e0a\u7684\u5dee\u5f02\uff1a<\/p>\n<pre>\/\/ \u65b9\u6cd5\npublic int method(int a, int b) {\n    return a + b;\n}\n\n\/\/ \u51fd\u6570\npublic static int function(int a, int b) {\n    return a + b;\n}\n\n\/\/ \u4e3b\u65b9\u6cd5\npublic static void main(String[] args) {\n    long startTime = System.currentTimeMillis();\n    int n = 100000;\n\n    \/\/ \u8c03\u7528\u65b9\u6cd5\n    for (int i = 0; i &lt; n; i++) {\n        method(1, 2);\n    }\n\n    long endTime = System.currentTimeMillis();\n    long methodTime = endTime - startTime;\n\n    \/\/ \u8c03\u7528\u51fd\u6570\n    startTime = System.currentTimeMillis();\n    for (int i = 0; i &lt; n; i++) {\n        function(1, 2);\n    }\n\n    endTime = System.currentTimeMillis();\n    long functionTime = endTime - startTime;\n\n    System.out.println(\"\u65b9\u6cd5\u6267\u884c\u65f6\u95f4\uff1a\" + methodTime + \"\u6beb\u79d2\");\n    System.out.println(\"\u51fd\u6570\u6267\u884c\u65f6\u95f4\uff1a\" + functionTime + \"\u6beb\u79d2\");\n}<\/pre>\n<p>\u5728\u8be5\u6848\u4f8b\u4e2d\uff0c\u51fd\u6570\u6bd4\u65b9\u6cd5\u6267\u884c\u5f97\u66f4\u5feb\uff0c\u56e0\u4e3a\u907f\u514d\u4e86\u7c7b\u52a0\u8f7d\u5f00\u9500\u548c\u6808\u5185\u5b58\u5206\u914d\u5f00\u9500\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8ejava,\u6548\u7387\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aJava \u51fd\u6570\u548c\u65b9\u6cd5\u7684\u6267\u884c\u6548\u7387\u6709\u54ea\u4e9b\u5dee\u5f02\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u51fd\u6570\u548c\u65b9\u6cd5\u7684\u6267\u884c\u6548\u7387\u6709&#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-203048","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203048","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=203048"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203048\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}