{"id":115848,"date":"2024-03-23T04:23:04","date_gmt":"2024-03-22T19:23:04","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%9e%e3%83%ab%e3%83%81%e3%82%b9%e3%83%ac%e3%83%83%e3%83%89%e3%81%a7%e3%82%b0%e3%83%ad%e3%83%bc%e3%83%90%e3%83%ab%e5%a4%89%e6%95%b0%e3%82%92%e5%85%b1%e6%9c%89%e3%81%99%e3%82%8b\/"},"modified":"2024-04-04T14:18:29","modified_gmt":"2024-04-04T05:18:29","slug":"java%e3%81%a7%e3%83%9e%e3%83%ab%e3%83%81%e3%82%b9%e3%83%ac%e3%83%83%e3%83%89%e3%81%a7%e3%82%b0%e3%83%ad%e3%83%bc%e3%83%90%e3%83%ab%e5%a4%89%e6%95%b0%e3%82%92%e5%85%b1%e6%9c%89%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%9e%e3%83%ab%e3%83%81%e3%82%b9%e3%83%ac%e3%83%83%e3%83%89%e3%81%a7%e3%82%b0%e3%83%ad%e3%83%bc%e3%83%90%e3%83%ab%e5%a4%89%e6%95%b0%e3%82%92%e5%85%b1%e6%9c%89%e3%81%99%e3%82%8b\/","title":{"rendered":"Java\u3067\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u3092\u5171\u6709\u3059\u308b\u306b\u306f"},"content":{"rendered":"

Java\u3067\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u3092\u5171\u6709\u3059\u308b\u65b9\u6cd5\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n

    \n
  1. volatile \u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b: \u5171\u6709\u5909\u6570\u3092 volatile \u578b\u3068\u3057\u3066\u5ba3\u8a00\u3059\u308b\u3068\u3001\u30b9\u30ec\u30c3\u30c9\u3054\u3068\u306b\u5171\u6709\u5909\u6570\u306e\u8aad\u307f\u66f8\u304d\u304c\u3001\u81ea\u8eab\u306e\u30ef\u30fc\u30ad\u30f3\u30b0\u30e1\u30e2\u30ea\u30fc\u3067\u306f\u306a\u304f\u30e1\u30a4\u30f3\u30e1\u30e2\u30ea\u30fc\u304b\u3089\u884c\u308f\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b9\u30ec\u30c3\u30c9\u9593\u306e\u53ef\u8996\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/li>\n
  2. synchronized\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u3046\u3002synchronized\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u3063\u3066\u5171\u6709\u5909\u6570\u306e\u8aad\u307f\u66f8\u304d\u52d5\u4f5c\u3092\u98fe\u308a\u3064\u3051\u3001\u540c\u4e00\u6642\u9593\u306b\u3072\u3068\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u3060\u3051\u304c\u5171\u6709\u5909\u6570\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3001\u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u540c\u6642\u306b\u5171\u6709\u5909\u6570\u3092\u5909\u66f4\u3057\u3066\u3001\u30c7\u30fc\u30bf\u4e0d\u4e00\u81f4\u554f\u984c\u304c\u8d77\u3053\u308b\u306e\u3092\u9632\u3050\u3002<\/li>\n
  3. \u30ed\u30c3\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f7f\u3046\uff1a\u30ed\u30c3\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u305d\u306e\u5b9f\u88c5\u30af\u30e9\u30b9\uff08ReentrantLock\u306a\u3069\uff09\u3092\u4f7f\u7528\u3057\u3066\u5171\u6709\u5909\u6570\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u4fdd\u8b77\u3057\u3001lock()\u30e1\u30bd\u30c3\u30c9\u306b\u3088\u3063\u3066\u30ed\u30c3\u30af\u3092\u53d6\u5f97\u3057\u3001unlock()\u30e1\u30bd\u30c3\u30c9\u306b\u3088\u3063\u3066\u30ed\u30c3\u30af\u3092\u89e3\u653e\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u540c\u6642\u306b1\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u3060\u3051\u304c\u5171\u6709\u5909\u6570\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3002<\/li>\n
  4. Atomic\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b: AtomicInteger\u3084AtomicLong\u306a\u3069\u306eAtomic\u30af\u30e9\u30b9\u306f\u3001\u901a\u5e38\u306e\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u306b\u4ee3\u308f\u308b\u3082\u306e\u3067\u3001getAndIncrement()\u3001compareAndSet()\u306a\u3069\u306e\u539f\u5b50\u64cd\u4f5c\u306e\u30bb\u30c3\u30c8\u3092\u63d0\u4f9b\u3057\u3001\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u4e0b\u3067\u306e\u539f\u5b50\u6027\u3068\u53ef\u8996\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/li>\n
  5. ThreadLocal\u30af\u30e9\u30b9\u3092\u5229\u7528\u3059\u308b\uff1a\u30b9\u30ec\u30c3\u30c9\u3054\u3068\u306b\u5171\u6709\u5909\u6570\u306e\u72ec\u7acb\u3057\u305f\u30b3\u30d4\u30fc\u3092\u6301\u3061\u3001\u5404\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u5e72\u6e09\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u5177\u4f53\u7684\u306a\u30d3\u30b8\u30cd\u30b9\u30cb\u30fc\u30ba\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8981\u4ef6\u306b\u3088\u3063\u3066\u3001\u3069\u306e\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b\u304b\u304c\u6c7a\u5b9a\u3057\u307e\u3059\u304c\u3001\u4e0a\u8a18\u306e\u65b9\u6cd5\u306f\u3059\u3079\u3066\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u306e\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u5171\u6709\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    Java\u3067\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u3092\u5171\u6709\u3059\u308b\u65b9\u6cd5\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002 volatile \u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b: \u5171\u6709\u5909\u6570\u3092 volatile \u578b\u3068\u3057\u3066\u5ba3\u8a00\u3059\u308b\u3068\u3001\u30b9\u30ec\u30c3\u30c9\u3054\u3068\u306b\u5171\u6709\u5909\u6570\u306e\u8aad\u307f\u66f8\u304d\u304c\u3001\u81ea\u8eab\u306e\u30ef\u30fc\u30ad\u30f3\u30b0\u30e1 […]<\/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-115848","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nJava\u3067\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u3092\u5171\u6709\u3059\u308b\u306b\u306f - 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\u3067\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u3092\u5171\u6709\u3059\u308b\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u3067\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u3092\u5171\u6709\u3059\u308b\u306b\u306f\" \/>\n<meta property=\"og:description\" content=\"Java\u3067\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u3092\u5171\u6709\u3059\u308b\u65b9\u6cd5\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002 volatile \u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b: \u5171\u6709\u5909\u6570\u3092 volatile \u578b\u3068\u3057\u3066\u5ba3\u8a00\u3059\u308b\u3068\u3001\u30b9\u30ec\u30c3\u30c9\u3054\u3068\u306b\u5171\u6709\u5909\u6570\u306e\u8aad\u307f\u66f8\u304d\u304c\u3001\u81ea\u8eab\u306e\u30ef\u30fc\u30ad\u30f3\u30b0\u30e1 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u3067\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u3092\u5171\u6709\u3059\u308b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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