{"id":66750,"date":"2025-05-03T17:04:32","date_gmt":"2025-05-03T09:04:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66750\/"},"modified":"2025-05-03T17:04:32","modified_gmt":"2025-05-03T09:04:32","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e5%8a%a0%e6%8c%87%e5%ae%9a%e6%95%b0%e7%bb%84%e7%9a%84%e5%92%8c-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66750\/","title":{"rendered":"Java\u4e2d\u600e\u4e48\u52a0\u6307\u5b9a\u6570\u7ec4\u7684\u548c"},"content":{"rendered":"<blockquote><p>\n  java\u4e2d\u8ba1\u7b97\u7279\u5b9a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u548c\u6709\u4ee5\u4e0b\u65b9\u6cd5\uff1a\u4f7f\u7528\u5faa\u73af\u9010\u4e2a\u76f8\u52a0\uff1aint sum = 0; for (int i = 0; i <\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111621582477563.jpg\" class=\"aligncenter\" title=\"Java\u4e2d\u600e\u4e48\u52a0\u6307\u5b9a\u6570\u7ec4\u7684\u548c\u63d2\u56fe\" alt=\"Java\u4e2d\u600e\u4e48\u52a0\u6307\u5b9a\u6570\u7ec4\u7684\u548c\u63d2\u56fe\" \/><\/p>\n<p><strong>Java\u4e2d\u52a0\u6307\u5b9a\u6570\u7ec4\u7684\u548c<\/strong><\/p>\n<p>\u8ba1\u7b97\u7279\u5b9a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u548c\u662fJava\u7f16\u7a0b\u4e2d\u7684\u4e00\u4e2a\u5e38\u89c1\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u505a\u5230\u8fd9\u4e00\u70b9\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528\u5faa\u73af<\/strong><\/p>\n<p>\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u662f\u4f7f\u7528for\u6216while\u5faa\u73af\u8fed\u4ee3\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5c06\u5b83\u4eec\u9010\u4e2a\u76f8\u52a0\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint sum = 0;\n\nfor (int i = 0; i &lt; arr.length; i++) {\n    sum += arr[i];\n}\n\nSystem.out.println(\"\u6570\u7ec4\u5143\u7d20\u4e4b\u548c\u4e3a\uff1a\" + sum);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528Arrays.sum()\u65b9\u6cd5<\/strong><\/p>\n<p>Java 8\u5f15\u5165\u4e86Arrays.sum()\u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u65b9\u4fbf\u5730\u8ba1\u7b97\u6570\u7ec4\u5143\u7d20\u7684\u548c\u3002\u7528\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint sum = Arrays.stream(arr).sum();\n\nSystem.out.println(\"\u6570\u7ec4\u5143\u7d20\u4e4b\u548c\u4e3a\uff1a\" + sum);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528IntStream.sum()\u65b9\u6cd5<\/strong><\/p>\n<p>\u5bf9\u4e8e\u5305\u542b\u57fa\u672c\u7c7b\u578bint\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528IntStream.sum()\u65b9\u6cd5\u3002\u7528\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint sum = IntStream.of(arr).sum();\n\nSystem.out.println(\"\u6570\u7ec4\u5143\u7d20\u4e4b\u548c\u4e3a\uff1a\" + sum);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n<ul>\n<li>\u5982\u679c\u6570\u7ec4\u4e3a\u7a7a\uff0c\u4e0a\u8ff0\u6240\u6709\u65b9\u6cd5\u90fd\u4f1a\u8fd4\u56de0\u3002<\/li>\n<li>\u5bf9\u4e8e\u5305\u542b\u975e\u6570\u5b57\u5143\u7d20\u7684\u6570\u7ec4\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u5c06\u629b\u51faNumberFormatException\u5f02\u5e38\u3002<\/li>\n<\/ul>\n<\/blockquote>\n<p>\u4ee5\u4e0a\u5c31\u662fJava\u4e2d\u600e\u4e48\u52a0\u6307\u5b9a\u6570\u7ec4\u7684\u548c\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>java\u4e2d\u8ba1\u7b97\u7279\u5b9a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u548c\u6709\u4ee5\u4e0b\u65b9\u6cd5\uff1a\u4f7f\u7528\u5faa\u73af\u9010\u4e2a\u76f8\u52a0\uff1aint sum = 0; for (int i = 0; i Java\u4e2d\u52a0\u6307\u5b9a\u6570\u7ec4\u7684\u548c \u8ba1\u7b97\u7279\u5b9a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u548c\u662fJava\u7f16\u7a0b\u4e2d\u7684\u4e00\u4e2a\u5e38\u89c1\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u505a\u5230\u8fd9\u4e00\u70b9\uff1a 1. \u4f7f\u7528\u5faa\u73af \u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u662f\u4f7f\u7528for\u6216while\u5faa\u73af\u8fed\u4ee3\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5c06\u5b83\u4eec\u9010\u4e2a\u76f8\u52a0\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = {1, 2, 3, 4, 5}; int sum = 0; for (int i = 0; i &lt; arr.length; i++) { sum += arr[i]; } System.out.println(&#8220;\u6570\u7ec4\u5143\u7d20\u4e4b\u548c\u4e3a\uff1a&#8221; + sum); \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528Arrays.sum()\u65b9\u6cd5 Java 8\u5f15\u5165\u4e86Arrays.sum()\u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u65b9\u4fbf\u5730\u8ba1\u7b97\u6570\u7ec4\u5143\u7d20\u7684\u548c\u3002\u7528\u6cd5\u5982\u4e0b\uff1a int[] arr = {1, 2, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-66750","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66750","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=66750"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66750\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66750"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66750"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}