{"id":93877,"date":"2024-03-21T17:11:28","date_gmt":"2024-03-21T08:11:28","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java-%e3%81%ae-random-nextint-%e3%81%ae%e7%94%a8%e9%80%94%e3%81%af%ef%bc%9f\/"},"modified":"2024-04-04T02:49:32","modified_gmt":"2024-04-03T17:49:32","slug":"java-%e3%81%ae-random-nextint-%e3%81%ae%e7%94%a8%e9%80%94%e3%81%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java-%e3%81%ae-random-nextint-%e3%81%ae%e7%94%a8%e9%80%94%e3%81%af%ef%bc%9f\/","title":{"rendered":"java \u306e random.nextInt() \u306e\u7528\u9014\u306f\uff1f"},"content":{"rendered":"<p>Random\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3042\u308brandom.nextInt()\u306f\u3001\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u969b\u306b\u7528\u3044\u3089\u308c\u308b\u3002<\/p>\n<p>\u30e9\u30f3\u30c0\u30e0\u306a\u6574\u6570\u3092\u751f\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u4e71\u6570\u3092\u751f\u6210\u3057\u3001\u78ba\u7387\u7684\u306a\u30a4\u30d9\u30f3\u30c8\u306e\u767a\u751f\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>\u8981\u7d20\u3078\u30e9\u30f3\u30c0\u30e0\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u308b\u914d\u5217\u307e\u305f\u306f\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u5185\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5024\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>\u30b3\u30fc\u30c9\u306e\u30ab\u30d0\u30ec\u30c3\u30b8\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30c6\u30b9\u30c8\u306b\u4f7f\u7528\u3067\u304d\u308b\u30e9\u30f3\u30c0\u30e0\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u5024\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>\u30c7\u30fc\u30bf\u3092\u5b89\u5168\u306b\u4fdd\u3064\u305f\u3081\u306b\u3001\u6697\u53f7\u5316\u30ad\u30fc\u3084\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u30e9\u30f3\u30c0\u30e0\u306b\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>\u30e9\u30f3\u30c0\u30e0\u306a\u30b2\u30fc\u30e0\u30ad\u30e3\u30e9\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u3067\u3001\u30b2\u30fc\u30e0\u306e\u30d0\u30e9\u30a8\u30c6\u30a3\u3068\u9762\u767d\u3055\u304c\u5897\u3059\u3002<\/li>\n<\/ol>\n<p>\u4f7f\u7528\u4f8b\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> java.util.Random;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">RandomExample<\/span> {\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n        <span class=\"hljs-type\">Random<\/span> <span class=\"hljs-variable\">random<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Random<\/span>();\r\n        \r\n        <span class=\"hljs-comment\">\/\/ \u751f\u6210\u4e00\u4e2a\u968f\u673a\u7684\u6574\u6570<\/span>\r\n        <span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">randomNumber<\/span> <span class=\"hljs-operator\">=<\/span> random.nextInt();\r\n        System.out.println(randomNumber);\r\n        \r\n        <span class=\"hljs-comment\">\/\/ \u751f\u6210\u4e00\u4e2a0\u52309\u4e4b\u95f4\u7684\u968f\u673a\u6574\u6570<\/span>\r\n        <span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">randomDigit<\/span> <span class=\"hljs-operator\">=<\/span> random.nextInt(<span class=\"hljs-number\">10<\/span>);\r\n        System.out.println(randomDigit);\r\n        \r\n        <span class=\"hljs-comment\">\/\/ \u751f\u6210\u4e00\u4e2a\u968f\u673a\u7684\u7d22\u5f15\u503c<\/span>\r\n        String[] names = {<span class=\"hljs-string\">\"Alice\"<\/span>, <span class=\"hljs-string\">\"Bob\"<\/span>, <span class=\"hljs-string\">\"Charlie\"<\/span>, <span class=\"hljs-string\">\"David\"<\/span>};\r\n        <span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">randomIndex<\/span> <span class=\"hljs-operator\">=<\/span> random.nextInt(names.length);\r\n        System.out.println(names[randomIndex]);\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u30e9\u30f3\u30c0\u30e0\u306a\u6570\u751f\u6210\u5668\u306f\u6570\u7406\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u57fa\u3065\u304f\u64ec\u4f3c\u4e71\u6570\u3067\u3042\u308a\u3001\u771f\u306e\u4e71\u6570\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Random\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3042\u308brandom.nextInt()\u306f\u3001\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u969b\u306b\u7528\u3044\u3089\u308c\u308b\u3002 \u30e9\u30f3\u30c0\u30e0\u306a\u6574\u6570\u3092\u751f\u6210\u3067\u304d\u307e\u3059\u3002 \u4e71\u6570\u3092\u751f\u6210\u3057\u3001\u78ba\u7387\u7684\u306a\u30a4\u30d9\u30f3\u30c8\u306e\u767a\u751f\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3067\u304d\u307e\u3059\u3002 \u8981\u7d20\u3078\u30e9\u30f3\u30c0\u30e0\u306b\u30a2\u30af\u30bb\u30b9 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-93877","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) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>java \u306e random.nextInt() \u306e\u7528\u9014\u306f\uff1f - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/java-\u306e-random-nextint-\u306e\u7528\u9014\u306f\uff1f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"java \u306e random.nextInt() \u306e\u7528\u9014\u306f\uff1f\" \/>\n<meta property=\"og:description\" content=\"Random\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3042\u308brandom.nextInt()\u306f\u3001\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u969b\u306b\u7528\u3044\u3089\u308c\u308b\u3002 \u30e9\u30f3\u30c0\u30e0\u306a\u6574\u6570\u3092\u751f\u6210\u3067\u304d\u307e\u3059\u3002 \u4e71\u6570\u3092\u751f\u6210\u3057\u3001\u78ba\u7387\u7684\u306a\u30a4\u30d9\u30f3\u30c8\u306e\u767a\u751f\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3067\u304d\u307e\u3059\u3002 \u8981\u7d20\u3078\u30e9\u30f3\u30c0\u30e0\u306b\u30a2\u30af\u30bb\u30b9 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java-\u306e-random-nextint-\u306e\u7528\u9014\u306f\uff1f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-21T08:11:28+00:00\" \/>\n<meta property=\"article:modified_time\" 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