{"id":26305,"date":"2024-03-17T06:51:17","date_gmt":"2024-03-16T21:51:17","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7system-arraycopy%e3%82%92%e4%bd%bf%e3%81%86%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/"},"modified":"2024-03-22T13:33:03","modified_gmt":"2024-03-22T04:33:03","slug":"java%e3%81%a7system-arraycopy%e3%82%92%e4%bd%bf%e3%81%86%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7system-arraycopy%e3%82%92%e4%bd%bf%e3%81%86%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/","title":{"rendered":"Java\u3067system.arraycopy\u3092\u4f7f\u3046\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<p>system.arraycopy()\u30e1\u30bd\u30c3\u30c9\u306f\u3001Java\u3067\u4e00\u3064\u306e\u914d\u5217\u306e\u8981\u7d20\u3092\u5225\u306e\u914d\u5217\u306b\u30b3\u30d4\u30fc\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u65b9\u6cd5\u7684\u6587\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">arraycopy<\/span><span class=\"hljs-params\">(Object src, <span class=\"hljs-type\">int<\/span> srcPos, Object dest, <span class=\"hljs-type\">int<\/span> destPos, <span class=\"hljs-type\">int<\/span> length)<\/span>\r\n<\/code><\/pre>\n<p>\u8aac\u660e\uff1a<\/p>\n<ol>\n<li>\u5143\u306e\u914d\u5217<\/li>\n<li>srcPos\uff1a\u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u5185\u306e\u958b\u59cb\u4f4d\u7f6e<\/li>\n<li>\u76ee\u6a19\u914d\u5217<\/li>\n<li>destPos\uff1a\u30b3\u30d4\u30fc\u3059\u308b\u5bfe\u8c61\u914d\u5217\u306e\u958b\u59cb\u4f4d\u7f6e<\/li>\n<li>\u9577\u3055\uff1a\u30b3\u30d4\u30fc\u3059\u308b\u8981\u7d20\u306e\u6570<\/li>\n<\/ol>\n<p>\u3053\u306e\u65b9\u6cd5\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u6a5f\u80fd\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>2\u3064\u306e\u914d\u5217\u9593\u3067\u8981\u7d20\u3092\u30b3\u30d4\u30fc\u3059\u308b<\/li>\n<li>\u8981\u5728\u540c\u4e00\u500barray\u4e2d\u8907\u88fd\u5143\u7d20\uff0c\u5be6\u73fe\u79fb\u52d5\u5143\u7d20\u7684\u529f\u80fd\u3002<\/li>\n<li>\u5143\u306e\u914d\u5217\u306e\u8981\u7d20\u3092\u65b0\u3057\u3044\u914d\u5217\u306b\u30b3\u30d4\u30fc\u3059\u308b\u969b\u3001\u914d\u5217\u306e\u5bb9\u91cf\u3092\u62e1\u5f35\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<p>\u4f8b\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-type\">int<\/span>[] srcArray = {<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>};\r\n<span class=\"hljs-type\">int<\/span>[] destArray = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">int<\/span>[<span class=\"hljs-number\">5<\/span>];\r\nSystem.arraycopy(srcArray, <span class=\"hljs-number\">0<\/span>, destArray, <span class=\"hljs-number\">0<\/span>, srcArray.length);\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001srcArray\u914d\u5217\u306e\u8981\u7d20\u3092destArray\u914d\u5217\u306b\u30b3\u30d4\u30fc\u3057\u307e\u3059\u3002\u7d50\u679c\u3068\u3057\u3066\u3001destArray\u914d\u5217\u306e\u8981\u7d20\u306f{1\u30012\u30013\u30014\u30015}\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>system.arraycopy()\u30e1\u30bd\u30c3\u30c9\u306f\u3001Java\u3067\u4e00\u3064\u306e\u914d\u5217\u306e\u8981\u7d20\u3092\u5225\u306e\u914d\u5217\u306b\u30b3\u30d4\u30fc\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002 \u65b9\u6cd5\u7684\u6587\u6cd5\u5982\u4e0b\uff1a public static void arraycopy(Object src, i [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-26305","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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