{"id":66923,"date":"2025-05-03T15:32:48","date_gmt":"2025-05-03T07:32:48","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66923\/"},"modified":"2025-05-03T15:32:48","modified_gmt":"2025-05-03T07:32:48","slug":"java%e6%95%b0%e7%bb%84%e5%88%9d%e5%a7%8b%e5%8c%96%e9%83%bd%e6%98%af%e9%9b%b6%e6%80%8e%e4%b9%88%e5%81%9a-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66923\/","title":{"rendered":"java\u6570\u7ec4\u521d\u59cb\u5316\u90fd\u662f\u96f6\u600e\u4e48\u505a"},"content":{"rendered":"<blockquote><p>\n  \u8981\u5c06 java \u6570\u7ec4\u5143\u7d20\u521d\u59cb\u5316\u4e3a\u96f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a\u624b\u52a8\u8d4b\u503c\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u4f7f\u7528 stream api\uff08\u4ec5\u9002\u7528\u4e8e java 8 \u53ca\u66f4\u9ad8\u7248\u672c\uff09\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111719125496786.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u521d\u59cb\u5316\u90fd\u662f\u96f6\u600e\u4e48\u505a\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u521d\u59cb\u5316\u90fd\u662f\u96f6\u600e\u4e48\u505a\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5c06 Java \u6570\u7ec4\u5143\u7d20\u521d\u59cb\u5316\u4e3a\u96f6<\/strong><\/p>\n<p>Java \u4e2d\u7684\u6570\u7ec4\u9ed8\u8ba4\u4e0d\u4f1a\u81ea\u52a8\u521d\u59cb\u5316\uff0c\u8fd9\u610f\u5473\u7740\u5143\u7d20\u5305\u542b\u968f\u673a\u503c\u3002\u82e5\u8981\u5c06\u6570\u7ec4\u5143\u7d20\u521d\u59cb\u5316\u4e3a\u96f6\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u624b\u52a8\u8d4b\u503c<\/strong><\/p>\n<pre>int[] arr = new int[5];\nfor (int i = 0; i &lt; arr.length; i++) {\n    arr[i] = 0;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = new int[5];\nArrays.fill(arr, 0);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 Stream API<\/strong><\/p>\n<pre>int[] arr = new int[5];\narr = IntStream.generate(() -&gt; 0).limit(5).toArray();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li> <strong>\u65b9\u6cd5 1<\/strong> \u9700\u8981\u5728\u6bcf\u4e2a\u5143\u7d20\u4e0a\u6267\u884c\u5faa\u73af\u5206\u914d\uff0c\u6548\u7387\u8f83\u4f4e\u3002<\/li>\n<li> <strong>\u65b9\u6cd5 2<\/strong> \u548c <strong>\u65b9\u6cd5 3<\/strong> \u6548\u7387\u66f4\u9ad8\uff0c\u56e0\u4e3a\u5b83\u4eec\u4f7f\u7528\u539f\u751f\u65b9\u6cd5\u4e00\u6b21\u6027\u521d\u59cb\u5316\u6240\u6709\u5143\u7d20\u3002<\/li>\n<li>\u5982\u679c\u6570\u7ec4\u5305\u542b\u57fa\u672c\u7c7b\u578b\uff08\u5982 int\u3001double \u7b49\uff09\uff0c\u5219\u81ea\u52a8\u521d\u59cb\u5316\u4e3a\u96f6\u3002\u4f46\u662f\uff0c\u5982\u679c\u6570\u7ec4\u5305\u542b\u5f15\u7528\u7c7b\u578b\uff08\u5982\u5bf9\u8c61\u3001\u6570\u7ec4\u7b49\uff09\uff0c\u5219\u81ea\u52a8\u521d\u59cb\u5316\u4e3a null\u3002<\/li>\n<li> <strong>\u65b9\u6cd5 3<\/strong> \u4ec5\u9002\u7528\u4e8e Java 8 \u53ca\u66f4\u9ad8\u7248\u672c\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u521d\u59cb\u5316\u90fd\u662f\u96f6\u600e\u4e48\u505a\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>\u8981\u5c06 java \u6570\u7ec4\u5143\u7d20\u521d\u59cb\u5316\u4e3a\u96f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a\u624b\u52a8\u8d4b\u503c\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u4f7f\u7528 stream api\uff08\u4ec5\u9002\u7528\u4e8e java 8 \u53ca\u66f4\u9ad8\u7248\u672c\uff09 \u5c06 Java \u6570\u7ec4\u5143\u7d20\u521d\u59cb\u5316\u4e3a\u96f6 Java \u4e2d\u7684\u6570\u7ec4\u9ed8\u8ba4\u4e0d\u4f1a\u81ea\u52a8\u521d\u59cb\u5316\uff0c\u8fd9\u610f\u5473\u7740\u5143\u7d20\u5305\u542b\u968f\u673a\u503c\u3002\u82e5\u8981\u5c06\u6570\u7ec4\u5143\u7d20\u521d\u59cb\u5316\u4e3a\u96f6\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a 1. \u624b\u52a8\u8d4b\u503c int[] arr = new int[5]; for (int i = 0; i &lt; arr.length; i++) { arr[i] = 0; } \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = new int[5]; Arrays.fill(arr, 0); \u767b\u5f55\u540e\u590d\u5236 3. \u4f7f\u7528 Stream API int[] [&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-66923","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66923","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=66923"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66923\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}