{"id":202797,"date":"2025-05-22T08:38:30","date_gmt":"2025-05-22T00:38:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202797\/"},"modified":"2025-05-22T08:38:30","modified_gmt":"2025-05-22T00:38:30","slug":"java-%e5%87%bd%e6%95%b0%e5%9c%a8%e7%a1%ae%e5%ae%9a%e8%bf%94%e5%9b%9e%e5%80%bc%e7%b1%bb%e5%9e%8b%e6%97%b6%e6%9c%89%e4%bb%80%e4%b9%88%e8%a7%84%e5%88%99%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202797\/","title":{"rendered":"Java \u51fd\u6570\u5728\u786e\u5b9a\u8fd4\u56de\u503c\u7c7b\u578b\u65f6\u6709\u4ec0\u4e48\u89c4\u5219\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java \u51fd\u6570\u5728\u786e\u5b9a\u8fd4\u56de\u503c\u7c7b\u578b\u65f6\u6709\u4ec0\u4e48\u89c4\u5219\uff1f<\/h1>\n<p>\u6587\u7ae0\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300aJava \u51fd\u6570\u5728\u786e\u5b9a\u8fd4\u56de\u503c\u7c7b\u578b\u65f6\u6709\u4ec0\u4e48\u89c4\u5219\uff1f\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729942836671cd534bed72.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u51fd\u6570\u8fd4\u56de\u503c\u7c7b\u578b\u89c4\u5219<\/strong><\/p>\n<p>Java \u51fd\u6570\u5728\u786e\u5b9a\u8fd4\u56de\u503c\u7c7b\u578b\u65f6\u9075\u5faa\u4ee5\u4e0b\u89c4\u5219\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u51fd\u6570\u4e0d\u8fd4\u56de\u4efb\u4f55\u503c\uff0c\u5219\u5176\u8fd4\u56de\u503c\u7c7b\u578b\u5e94\u4e3a <code>void<\/code>\u3002<\/li>\n<li>\u5982\u679c\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u503c\uff0c\u5219\u5176\u8fd4\u56de\u503c\u7c7b\u578b\u5fc5\u987b\u4e0e\u51fd\u6570\u8c03\u7528\u7684\u8fd4\u56de\u7c7b\u578b\u517c\u5bb9\u3002<\/li>\n<li>\u51fd\u6570\u53ef\u4ee5\u8fd4\u56de\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff08\u4f8b\u5982 int\u3001double\uff09\u3001\u5f15\u7528\u7c7b\u578b\uff08\u4f8b\u5982 String\u3001Object\uff09\u6216 void\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b\u51fd\u6570\uff1a<\/p>\n<pre>public static int sum(int a, int b) {\n  return a + b;\n}<\/pre>\n<p>\u8fd9\u4e2a\u51fd\u6570\u63a5\u6536\u4e24\u4e2a\u6574\u6570\u53c2\u6570\u5e76\u8fd4\u56de\u5b83\u4eec\u7684\u548c\u3002\u7531\u4e8e\u8be5\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\uff0c\u5176\u8fd4\u56de\u503c\u7c7b\u578b\u5fc5\u987b\u662f <code>int<\/code>\u3002<\/p>\n<p>\u518d\u8003\u8651\u4ee5\u4e0b\u51fd\u6570\uff1a<\/p>\n<pre>public static List&lt;String&gt; getFruits() {\n  List&lt;String&gt; fruits = new ArrayList&lt;&gt;();\n  fruits.add(\"Apple\");\n  fruits.add(\"Banana\");\n  return fruits;\n}<\/pre>\n<p>\u8fd9\u4e2a\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u6c34\u679c\u5217\u8868\u3002\u7531\u4e8e\u8be5\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u5f15\u7528\u7c7b\u578b\uff08<code>List&lt;String&gt;<\/code>\uff09\uff0c\u5176\u8fd4\u56de\u503c\u7c7b\u578b\u5fc5\u987b\u662f <code>List&lt;String&gt;<\/code> \u6216\u5176\u7236\u7c7b\uff08\u4f8b\u5982 <code>Collection&lt;String&gt;<\/code>\uff09\u3002<\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>void \u65b9\u6cd5\u4e0d\u80fd\u8fd4\u56de\u4efb\u4f55\u503c\u3002<\/li>\n<li>\u51fd\u6570\u53ef\u4ee5\u8fd4\u56de null\uff0c\u5373\u4f7f\u5176\u8fd4\u56de\u503c\u7c7b\u578b\u662f\u5f15\u7528\u7c7b\u578b\u3002<\/li>\n<li>\u51fd\u6570\u7684\u6587\u6863\u5e94\u8be5\u6e05\u695a\u5730\u8bf4\u660e\u5176\u8fd4\u56de\u503c\u7c7b\u578b\u53ca\u5176\u542b\u4e49\u3002<\/li>\n<\/ul>\n<p>\u6587\u4e2d\u5173\u4e8ejava,\u8fd4\u56de\u503c\u7c7b\u578b\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\u5728\u786e\u5b9a\u8fd4\u56de\u503c\u7c7b\u578b\u65f6\u6709\u4ec0\u4e48\u89c4\u5219\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\u5728\u786e\u5b9a\u8fd4\u56de\u503c\u7c7b\u578b\u65f6&#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-202797","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202797","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=202797"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202797\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202797"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202797"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202797"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}