{"id":37279,"date":"2024-11-26T10:14:37","date_gmt":"2024-11-26T02:14:37","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37279\/"},"modified":"2024-11-26T10:14:37","modified_gmt":"2024-11-26T02:14:37","slug":"java%e6%80%8e%e4%b9%88%e7%bb%99%e6%95%b0%e7%bb%84%e9%87%8d%e6%96%b0%e8%b5%8b%e5%80%bc","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37279\/","title":{"rendered":"java\u600e\u4e48\u7ed9\u6570\u7ec4\u91cd\u65b0\u8d4b\u503c"},"content":{"rendered":"<blockquote><p>\n  \u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u91cd\u65b0\u7ed9\u6570\u7ec4\u8d4b\u503c\uff0c\u8be5\u65b9\u6cd5\u9700\u8981\u4e09\u4e2a\u53c2\u6570\uff1aarr\uff08\u6570\u7ec4\uff09\u3001fromindex\uff08\u5f00\u59cb\u91cd\u65b0\u8d4b\u503c\u7684\u7d22\u5f15\uff09\u3001toindex\uff08\u7ed3\u675f\u91cd\u65b0\u8d4b\u503c\u7684\u7d22\u5f15\uff09\u3002\u4f7f\u7528\u793a\u4f8b\uff1aint[] arr = new int[] {1, 2, 3, 4, 5}; arrays.fill(arr, 0, 4, 10); \u91cd\u65b0\u8d4b\u503c\u540e\uff0c\u6570\u7ec4 arr \u5c06\u53d8\u4e3a\uff1a[10, 10, 10, 10, 5]\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111303243638467.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u7ed9\u6570\u7ec4\u91cd\u65b0\u8d4b\u503c\u63d2\u56fe\" alt=\"java\u600e\u4e48\u7ed9\u6570\u7ec4\u91cd\u65b0\u8d4b\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u7ed9 Java \u6570\u7ec4\u91cd\u65b0\u8d4b\u503c<\/strong><\/p>\n<p><strong>\u7b54\u6848\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\u91cd\u65b0\u7ed9\u6570\u7ec4\u8d4b\u503c\u3002<\/p>\n<p><strong>\u8be6\u7ec6\u8bf4\u660e\uff1a<\/strong><\/p>\n<p>Arrays.fill() \u65b9\u6cd5\u662f\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\uff0c\u7528\u4e8e\u5c06\u6570\u7ec4\u4e2d\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5143\u7d20\u91cd\u65b0\u8d4b\u503c\u4e3a\u7ed9\u5b9a\u7684\u503c\u3002\u5b83\u9700\u8981\u4e09\u4e2a\u53c2\u6570\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li> <strong>arr\uff1a<\/strong>\u8981\u91cd\u65b0\u8d4b\u503c\u7684\u6570\u7ec4<\/li>\n<li> <strong>fromIndex\uff1a<\/strong>\u5f00\u59cb\u91cd\u65b0\u8d4b\u503c\u7684\u7d22\u5f15\uff08\u5305\u542b\uff09<\/li>\n<li> <strong>toIndex\uff1a<\/strong>\u7ed3\u675f\u91cd\u65b0\u8d4b\u503c\u7684\u7d22\u5f15\uff08\u4e0d\u5305\u542b\uff09<\/li>\n<\/ul>\n<p><strong>\u4f7f\u7528\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u4ee5\u4e0b\u4ee3\u7801\u5c06\u6570\u7ec4 arr \u4e2d\u7d22\u5f15 0 \u5230 4\uff08\u4e0d\u542b 4\uff09\u4e4b\u95f4\u7684\u5143\u7d20\u91cd\u65b0\u8d4b\u503c\u4e3a 10\uff1a<\/p>\n<pre>int[] arr = new int[] {1, 2, 3, 4, 5};\nArrays.fill(arr, 0, 4, 10);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u91cd\u65b0\u8d4b\u503c\u540e\uff0c\u6570\u7ec4 arr \u5c06\u53d8\u4e3a\uff1a<\/p>\n<pre>[10, 10, 10, 10, 5]<\/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 fromIndex \u5c0f\u4e8e 0 \u6216\u5927\u4e8e\u6570\u7ec4\u957f\u5ea6\uff0c\u5219\u629b\u51fa IndexOutOfBoundsException \u5f02\u5e38\u3002<\/li>\n<li>\u5982\u679c toIndex \u5c0f\u4e8e 0 \u6216\u5927\u4e8e\u6570\u7ec4\u957f\u5ea6\uff0c\u5219\u629b\u51fa IndexOutOfBoundsException \u5f02\u5e38\u3002<\/li>\n<li>\u5982\u679c fromIndex \u5927\u4e8e\u6216\u7b49\u4e8e toIndex\uff0c\u5219\u4e0d\u4f1a\u6267\u884c\u4efb\u4f55\u91cd\u65b0\u8d4b\u503c\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u7ed9\u6570\u7ec4\u91cd\u65b0\u8d4b\u503c\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u91cd\u65b0\u7ed9\u6570\u7ec4\u8d4b\u503c\uff0c\u8be5\u65b9\u6cd5\u9700\u8981\u4e09\u4e2a\u53c2\u6570\uff1aarr\uff08\u6570\u7ec4\uff09\u3001fromindex\uff08\u5f00\u59cb\u91cd\u65b0\u8d4b\u503c\u7684\u7d22\u5f15\uff09\u3001toindex\uff08\u7ed3\u675f\u91cd\u65b0\u8d4b\u503c\u7684\u7d22\u5f15\uff09\u3002\u4f7f\u7528\u793a\u4f8b\uff1aint[] arr = new int[] {1, 2, 3, 4, 5}; arrays.fill(arr, 0, 4, 10); \u91cd\u65b0\u8d4b\u503c\u540e\uff0c\u6570\u7ec4 arr \u5c06\u53d8\u4e3a\uff1a[10, 10, 10, 10, 5]\u3002 \u5982\u4f55\u7ed9 Java \u6570\u7ec4\u91cd\u65b0\u8d4b\u503c \u7b54\u6848\uff1a\u53ef\u4ee5\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\u91cd\u65b0\u7ed9\u6570\u7ec4\u8d4b\u503c\u3002 \u8be6\u7ec6\u8bf4\u660e\uff1a Arrays.fill() \u65b9\u6cd5\u662f\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\uff0c\u7528\u4e8e\u5c06\u6570\u7ec4\u4e2d\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5143\u7d20\u91cd\u65b0\u8d4b\u503c\u4e3a\u7ed9\u5b9a\u7684\u503c\u3002\u5b83\u9700\u8981\u4e09\u4e2a\u53c2\u6570\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b arr\uff1a\u8981\u91cd\u65b0\u8d4b\u503c\u7684\u6570\u7ec4 fromIndex\uff1a\u5f00\u59cb\u91cd\u65b0\u8d4b\u503c\u7684\u7d22\u5f15\uff08\u5305\u542b\uff09 toIndex\uff1a\u7ed3\u675f\u91cd\u65b0\u8d4b\u503c\u7684\u7d22\u5f15\uff08\u4e0d\u5305\u542b\uff09 \u4f7f\u7528\u793a\u4f8b\uff1a \u4ee5\u4e0b\u4ee3\u7801\u5c06\u6570\u7ec4 arr \u4e2d\u7d22\u5f15 0 \u5230 4\uff08\u4e0d\u542b 4\uff09\u4e4b\u95f4\u7684\u5143\u7d20\u91cd\u65b0\u8d4b\u503c\u4e3a 10\uff1a int[] arr = new int[] {1, 2, 3, 4, 5}; [&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-37279","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37279","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=37279"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37279\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}