{"id":121412,"date":"2024-03-24T02:22:24","date_gmt":"2024-03-23T17:22:24","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java-%e3%81%a7%e3%83%90%e3%82%a4%e3%83%88%e9%85%8d%e5%88%97%e3%81%ab%e5%80%a4%e3%82%92%e8%a8%ad%e5%ae%9a%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/"},"modified":"2024-04-05T06:28:39","modified_gmt":"2024-04-04T21:28:39","slug":"java-%e3%81%a7%e3%83%90%e3%82%a4%e3%83%88%e9%85%8d%e5%88%97%e3%81%ab%e5%80%a4%e3%82%92%e8%a8%ad%e5%ae%9a%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java-%e3%81%a7%e3%83%90%e3%82%a4%e3%83%88%e9%85%8d%e5%88%97%e3%81%ab%e5%80%a4%e3%82%92%e8%a8%ad%e5%ae%9a%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"java \u3067\u30d0\u30a4\u30c8\u914d\u5217\u306b\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>\u30d0\u30a4\u30c8\u914d\u5217\u306b\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u306f Java \u306b\u306f\u8907\u6570\u3042\u308a\u3001\u3088\u304f\u4f7f\u308f\u308c\u308b\u65b9\u6cd5\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<p>1. \u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u3066 1 \u3064\u305a\u3064\u8a2d\u5b9a\u3059\u308b:<br \/>\n&#8220;`java<br \/>\nbyte[] arr = new byte[length];<br \/>\nfor (int i = 0; i &lt; length; i++) {<br \/>\narr[i] = value;<br \/>\n}<br \/>\n&#8220;`<\/p>\n<p>2. Java \u306e Arrays.fill \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b:<br \/>\n&#8220;`java<br \/>\nbyte[] arr = new byte[length];<br \/>\nArrays.fill(arr, value);<br \/>\n&#8220;`<\/p>\n<p>3. System.arraycopy \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u5225\u306e\u30d0\u30a4\u30c8\u914d\u5217\u306e\u5024\u3092\u30b3\u30d4\u30fc\u3059\u308b:<br \/>\n&#8220;`java<br \/>\nbyte[] arr1 = new byte[length];<br \/>\nbyte[] arr2 = new byte[length];<br \/>\nSystem.arraycopy(arr2, 0, arr1, 0, length);<br \/>\n&#8220;`<\/p>\n<p>4. ByteBuffer \u306e put \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b:<br \/>\n&#8220;`java<br \/>\nbyte[] arr = new byte[length];<br \/>\nByteBuffer buffer = ByteBuffer.wrap(arr);<br \/>\nbuffer.put(value);<br \/>\n&#8220;`<\/p>\n<p>\u3053\u308c\u3089\u306e\u624b\u6cd5\u306e\u4e2d\u304b\u3089\u5177\u4f53\u7684\u306a\u4f7f\u7528\u76ee\u7684\u3084\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u6700\u3082\u9069\u3057\u305f\u624b\u6cd5\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30d0\u30a4\u30c8\u914d\u5217\u306b\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u306f Java \u306b\u306f\u8907\u6570\u3042\u308a\u3001\u3088\u304f\u4f7f\u308f\u308c\u308b\u65b9\u6cd5\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002 1. \u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u3066 1 \u3064\u305a\u3064\u8a2d\u5b9a\u3059\u308b: &#8220;`java byte[] arr = new byte[length [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-121412","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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