{"id":202879,"date":"2025-05-22T09:13:00","date_gmt":"2025-05-22T01:13:00","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202879\/"},"modified":"2025-05-22T09:13:00","modified_gmt":"2025-05-22T01:13:00","slug":"java%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%ef%bc%9a%e5%88%a9%e4%b8%8e%e5%bc%8a%e7%9a%84%e5%ae%9e%e7%94%a8%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202879\/","title":{"rendered":"Java\u51fd\u6570\u5f0f\u7f16\u7a0b\uff1a\u5229\u4e0e\u5f0a\u7684\u5b9e\u7528\u6307\u5357"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java\u51fd\u6570\u5f0f\u7f16\u7a0b\uff1a\u5229\u4e0e\u5f0a\u7684\u5b9e\u7528\u6307\u5357<\/h1>\n<p>\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\uff1a\u5229\u4e0e\u5f0a\u7684\u5b9e\u7528\u6307\u5357\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729954113671d014198b93.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u51fd\u6570\u5f0f\u7f16\u7a0b\uff1a\u5229\u4e0e\u5f0a\u7684\u5b9e\u7528\u6307\u5357<\/strong><\/p>\n<p><strong>\u4ec0\u4e48\u662f\u51fd\u6570\u5f0f\u7f16\u7a0b\uff1f<\/strong><\/p>\n<p>\u51fd\u6570\u5f0f\u7f16\u7a0b\u662f\u4e00\u79cd\u7f16\u7a0b\u8303\u5f0f\uff0c\u5f3a\u8c03\u4f7f\u7528\u4e0d\u53ef\u53d8\u6570\u636e\u548c\u7eaf\u51fd\u6570\uff08\u6ca1\u6709\u526f\u4f5c\u7528\u7684\u51fd\u6570\uff09\u3002\u5b83\u65e8\u5728\u63d0\u9ad8\u7a0b\u5e8f\u7684\u53ef\u8bfb\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u6d4b\u8bd5\u6027\u3002<\/p>\n<p><strong>Java \u4e2d\u7684\u51fd\u6570\u5f0f\u7f16\u7a0b<\/strong><\/p>\n<p>Java 8 \u5f15\u5165\u4e86\u5bf9\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u652f\u6301\uff0c\u5305\u62ec lambda \u8868\u8fbe\u5f0f\u3001\u6d41 API \u548c\u65b9\u6cd5\u5f15\u7528\u3002\u8fd9\u4f7f\u5f97 Java \u5f00\u53d1\u4eba\u5458\u80fd\u591f\u8f7b\u677e\u5730\u5c06\u51fd\u6570\u5f0f\u7f16\u7a0b\u6982\u5ff5\u5e94\u7528\u5230\u4ed6\u4eec\u7684\u4ee3\u7801\u4e2d\u3002<\/p>\n<p><strong>\u4f18\u70b9<\/strong><\/p>\n<ul>\n<li><strong>\u66f4\u53ef\u8bfb\u7684\u4ee3\u7801\uff1a<\/strong>\u51fd\u6570\u5f0f\u7f16\u7a0b\u4f7f\u7528\u58f0\u660e\u6027\u4ee3\u7801\uff0c\u4f7f\u7a0b\u5e8f\u903b\u8f91\u66f4\u5bb9\u6613\u7406\u89e3\u3002<\/li>\n<li><strong>\u66f4\u9ad8\u7684\u53ef\u7ef4\u62a4\u6027\uff1a<\/strong>\u4e0d\u53ef\u53d8\u6570\u636e\u548c\u7eaf\u51fd\u6570\u6d88\u9664\u4e86\u72b6\u6001\u548c\u526f\u4f5c\u7528\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u7a0b\u5e8f\u7684\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n<li><strong>\u66f4\u597d\u7684\u53ef\u6d4b\u8bd5\u6027\uff1a<\/strong>\u7eaf\u51fd\u6570\u53ef\u4ee5\u8f7b\u677e\u5730\u5355\u72ec\u6d4b\u8bd5\uff0c\u65e0\u9700\u8bbe\u7f6e\u5916\u90e8\u72b6\u6001\u3002<\/li>\n<li><strong>\u66f4\u597d\u7684\u5e76\u53d1\u6027\uff1a<\/strong>\u51fd\u6570\u5f0f\u7f16\u7a0b\u901a\u5e38\u4e0e\u4e0d\u53ef\u53d8\u6570\u636e\u76f8\u5173\uff0c\u8fd9\u63d0\u9ad8\u4e86\u5e76\u53d1\u5e94\u7528\u7a0b\u5e8f\u7684\u5b89\u5168\u6027\u3002<\/li>\n<\/ul>\n<p><strong>\u7f3a\u70b9<\/strong><\/p>\n<ul>\n<li><strong>\u6027\u80fd\u5f00\u9500\uff1a<\/strong>\u51fd\u6570\u5f0f\u7f16\u7a0b\u901a\u5e38\u9700\u8981\u6bd4\u547d\u4ee4\u5f0f\u7f16\u7a0b\u66f4\u591a\u7684\u5206\u914d\u548c\u5783\u573e\u56de\u6536\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5e26\u6765\u6027\u80fd\u635f\u5931\u3002<\/li>\n<li><strong>\u5b66\u4e60\u66f2\u7ebf\uff1a<\/strong>\u51fd\u6570\u5f0f\u7f16\u7a0b\u9700\u8981\u5f00\u53d1\u8005\u5b66\u4e60\u65b0\u7684\u6982\u5ff5\u548c\u65b9\u6cd5\uff0c\u8fd9\u53ef\u80fd\u4f1a\u6709\u4e00\u4e2a\u5b66\u4e60\u66f2\u7ebf\u3002<\/li>\n<li><strong>\u7f3a\u4e4f IDE \u652f\u6301\uff1a<\/strong>\u67d0\u4e9b IDE \u53ef\u80fd\u4e0d\u5b8c\u5168\u652f\u6301\u51fd\u6570\u5f0f\u7f16\u7a0b\u7279\u6027\uff0c\u8fd9\u4f1a\u5f71\u54cd\u5f00\u53d1\u4f53\u9a8c\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u5b9e\u6218\u6848\u4f8b\uff0c\u7528\u4e8e\u8ba1\u7b97\u4e00\u4e2a\u6570\u7ec4\u4e2d\u6240\u6709\u5947\u6570\u7684\u548c\uff1a<\/p>\n<pre>import java.util.stream.IntStream;\n\npublic class SumOddNumbers {\n\n    public static void main(String[] args) {\n        int[] arr = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};\n\n        int sum = IntStream.of(arr)\n                .filter(n -&gt; n % 2 == 1)\n                .sum();\n\n        System.out.println(\"Sum of odd numbers: \" + sum);\n    }\n}<\/pre>\n<p>\u8fd9\u4e2a\u7a0b\u5e8f\u4f7f\u7528\u6d41 API \u6765\u9ad8\u6548\u5730\u8fc7\u6ee4\u6570\u7ec4\u4e2d\u7684\u5947\u6570\uff0c\u7136\u540e\u4f7f\u7528 <code>sum()<\/code> \u65b9\u6cd5\u8ba1\u7b97\u8fd9\u4e9b\u5947\u6570\u7684\u548c\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\uff1a\u5229\u4e0e\u5f0a\u7684\u5b9e\u7528\u6307\u5357\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u51fd\u6570\u5f0f\u7f16\u7a0b\uff1a\u5229\u4e0e\u5f0a\u7684\u5b9e\u7528&#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-202879","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202879","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=202879"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202879\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202879"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202879"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202879"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}