{"id":478828,"date":"2023-08-09T09:38:54","date_gmt":"2023-08-09T09:38:54","guid":{"rendered":""},"modified":"2023-09-05T11:17:39","modified_gmt":"2023-09-05T11:17:39","slug":"scala","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/scala\/","title":{"rendered":"\u30b9\u30ab\u30e9"},"content":{"rendered":"<p>Scala \u306f\u300cScalable Language\u300d\u306e\u7565\u3067\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u3068\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u6982\u5ff5\u3092\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u7d44\u307f\u5408\u308f\u305b\u305f\u6700\u65b0\u306e\u30de\u30eb\u30c1\u30d1\u30e9\u30c0\u30a4\u30e0 \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u3059\u3002\u65e2\u5b58\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306e\u6b20\u70b9\u3092\u88dc\u3044\u3001\u5805\u7262\u3067\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e\u5f37\u529b\u3067\u8868\u73fe\u529b\u8c4a\u304b\u3067\u7c21\u6f54\u306a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u63d0\u4f9b\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u8c4a\u5bcc\u306a\u6a5f\u80fd\u30bb\u30c3\u30c8\u3068 Java \u3068\u306e\u4e92\u63db\u6027\u3092\u91cd\u8996\u3057\u305f Scala \u306f\u3001Web \u958b\u767a\u3001\u30c7\u30fc\u30bf\u5206\u6790\u3001\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u5206\u91ce\u3067\u4eba\u6c17\u3092\u535a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>Scala\u306e\u8d77\u6e90\u306e\u6b74\u53f2<\/h2>\n<p>Scala \u306e\u59cb\u307e\u308a\u306f\u3001\u30b9\u30a4\u30b9\u306e\u30ed\u30fc\u30b6\u30f3\u30cc\u9023\u90a6\u5de5\u79d1\u5927\u5b66 (EPFL) \u306e\u6559\u6388\u3067\u3042\u308b Martin Odersky \u6c0f\u304c\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3068\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u8a00\u8a9e\u306e\u958b\u767a\u306b\u7740\u624b\u3057\u305f 2001 \u5e74\u306b\u9061\u308a\u307e\u3059\u3002Scala \u304c\u521d\u3081\u3066\u8a00\u53ca\u3055\u308c\u305f\u306e\u306f\u30012003 \u5e74\u306e\u300cPizza into Java\u300d\u3068\u3044\u3046\u7814\u7a76\u8ad6\u6587\u3067\u3001Scala \u306e\u6838\u3068\u306a\u308b\u30a2\u30a4\u30c7\u30a2\u304c\u7d39\u4ecb\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u8a00\u8a9e\u306f 2003 \u5e74\u306b\u6b63\u5f0f\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u3001\u5b66\u8853\u7814\u7a76\u3068\u5b9f\u969b\u306e\u696d\u754c\u306e\u30cb\u30fc\u30ba\u306e\u4e21\u65b9\u306b\u3088\u3063\u3066\u958b\u767a\u304c\u9032\u3081\u3089\u308c\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<h2>Scala\u306e\u8a73\u7d30\u60c5\u5831<\/h2>\n<p>Scala \u306f Java \u4eee\u60f3\u30de\u30b7\u30f3 (JVM) \u4e0a\u306b\u69cb\u7bc9\u3055\u308c\u3066\u304a\u308a\u3001Java \u3068\u306e\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u76f8\u4e92\u904b\u7528\u6027\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u3053\u306e\u4e92\u63db\u6027\u306b\u3088\u308a\u3001\u958b\u767a\u8005\u306f\u65e2\u5b58\u306e Java \u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u30c4\u30fc\u30eb\u3092\u6d3b\u7528\u3057\u306a\u304c\u3089\u3001Scala \u306e\u8868\u73fe\u529b\u8c4a\u304b\u306a\u69cb\u6587\u3068\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Scala \u306e\u69cb\u6587\u306f\u7c21\u6f54\u3067\u8868\u73fe\u529b\u306b\u5bcc\u3093\u3067\u3044\u308b\u305f\u3081\u3001\u958b\u767a\u8005\u306f Java \u306b\u6bd4\u3079\u3066\u7c21\u6f54\u3067\u8aad\u307f\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>Scala\u306e\u5185\u90e8\u69cb\u9020<\/h2>\n<p>Scala \u306f\u3001\u672c\u8cea\u7684\u306b\u62e1\u5f35\u6027\u3068\u9069\u5fdc\u6027\u3092\u6301\u3064\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8a00\u8a9e\u306f\u3001\u578b\u63a8\u8ad6\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5f37\u529b\u306a\u578b\u30b7\u30b9\u30c6\u30e0\u306b\u57fa\u3065\u3044\u3066\u304a\u308a\u3001\u958b\u767a\u8005\u306f\u578b\u306e\u5b89\u5168\u6027\u3092\u72a0\u7272\u306b\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u5b9a\u578b\u53e5\u3092\u6e1b\u3089\u3057\u3066\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u3067\u304d\u307e\u3059\u3002Scala \u306e\u578b\u30b7\u30b9\u30c6\u30e0\u306f\u30af\u30e9\u30b9\u3068\u7279\u6027\u306e\u4e21\u65b9\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001\u7279\u6027\u306f\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u3068\u69cb\u6210\u3092\u53ef\u80fd\u306b\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<h2>Scala \u306e\u4e3b\u8981\u6a5f\u80fd\u306e\u5206\u6790<\/h2>\n<p>Scala \u306b\u306f\u3001\u4ed6\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3068\u306f\u4e00\u7dda\u3092\u753b\u3059\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0:<\/strong> Scala \u306f\u3001\u4e0d\u5909\u30c7\u30fc\u30bf\u69cb\u9020\u3001\u9ad8\u968e\u95a2\u6570\u3001\u30d1\u30bf\u30fc\u30f3 \u30de\u30c3\u30c1\u30f3\u30b0\u306a\u3069\u306e\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u6982\u5ff5\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u958b\u767a\u8005\u306f\u3088\u308a\u7c21\u6f54\u3067\u30e2\u30b8\u30e5\u30fc\u30eb\u5316\u3055\u308c\u305f\u3001\u7406\u89e3\u3057\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\uff1a<\/strong> Scala \u306f\u5b8c\u5168\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u3067\u3042\u308a\u3001\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u3082\u542b\u3081\u3059\u3079\u3066\u304c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3059\u3002\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u3068\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u306e\u7d71\u5408\u306b\u3088\u308a\u3001\u30b3\u30fc\u30c9\u304c\u7c21\u7d20\u5316\u3055\u308c\u3001\u4e00\u8cab\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u624b\u6cd5\u304c\u4fc3\u9032\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u540c\u6642\u5b9f\u884c\u6027:<\/strong> Scala \u306f\u3001Actors \u30e2\u30c7\u30eb\u3068 Akka \u30c4\u30fc\u30eb\u30ad\u30c3\u30c8\u3092\u901a\u3058\u3066\u3001\u540c\u6642\u5b9f\u884c\u6027\u3068\u4e26\u5217\u51e6\u7406\u306e\u7d44\u307f\u8fbc\u307f\u30b5\u30dd\u30fc\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u3067\u5fdc\u7b54\u6027\u306e\u9ad8\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u578b\u63a8\u8ad6:<\/strong> Scala \u306e\u5f37\u529b\u306a\u578b\u63a8\u8ad6\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u308a\u3001\u660e\u793a\u7684\u306a\u578b\u6ce8\u91c8\u306e\u5fc5\u8981\u6027\u304c\u6e1b\u308a\u3001\u3088\u308a\u30af\u30ea\u30fc\u30f3\u3067\u4fdd\u5b88\u3057\u3084\u3059\u3044\u30b3\u30fc\u30c9\u304c\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>DSL \u30b5\u30dd\u30fc\u30c8:<\/strong> Scala \u306e\u67d4\u8edf\u306a\u69cb\u6587\u3068\u9ad8\u968e\u95a2\u6570\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u56fa\u6709\u8a00\u8a9e (DSL) \u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306e\u7406\u60f3\u7684\u306a\u8a00\u8a9e\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u958b\u767a\u8005\u306f\u30d3\u30b8\u30cd\u30b9 \u30ed\u30b8\u30c3\u30af\u3092\u3088\u308a\u81ea\u7136\u3067\u7c21\u6f54\u306a\u65b9\u6cd5\u3067\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>Scala\u306e\u7a2e\u985e<\/h2>\n<p>Scala \u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0 \u30cb\u30fc\u30ba\u306b\u5bfe\u5fdc\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u578b\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30bf\u30a4\u30d7<\/th>\n<th>\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u4e0d\u5909\u578b<\/strong><\/td>\n<td>Scala \u306f\u4e0d\u5909\u6027\u3092\u4fc3\u9032\u3057\u3001\u30b3\u30fc\u30c9\u306e\u5b89\u5168\u6027\u3092\u9ad8\u3081\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30b1\u30fc\u30b9\u30af\u30e9\u30b9<\/strong><\/td>\n<td>\u8efd\u91cf\u3067\u4e0d\u5909\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u7279\u6027<\/strong><\/td>\n<td>\u591a\u91cd\u7d99\u627f\u3092\u901a\u3058\u3066\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u3092\u4fc3\u9032\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30aa\u30d7\u30b7\u30e7\u30f3<\/strong><\/td>\n<td>\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u5024\u3092\u51e6\u7406\u3057\u3001null \u95a2\u9023\u306e\u30a8\u30e9\u30fc\u3092\u524a\u6e1b\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0<\/strong><\/td>\n<td>\u30c7\u30fc\u30bf\u64cd\u4f5c\u3068\u6761\u4ef6\u5206\u5c90\u3092\u7c21\u7d20\u5316\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Scala \u306e\u4f7f\u3044\u65b9\u3001\u554f\u984c\u3001\u89e3\u6c7a\u7b56<\/h2>\n<p>Scala \u306f\u3055\u307e\u3056\u307e\u306a\u5206\u91ce\u3067\u5fdc\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30a6\u30a7\u30d6\u958b\u767a\uff1a<\/strong> Scala \u306e\u8868\u73fe\u529b\u8c4a\u304b\u306a\u69cb\u6587\u3068 Play Framework \u306b\u3088\u308a\u3001\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306a Web \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u69cb\u7bc9\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>\u30d3\u30c3\u30b0\u30c7\u30fc\u30bf\u51e6\u7406:<\/strong> Scala \u3068 Apache Spark \u306e\u7d71\u5408\u306b\u3088\u308a\u3001\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u51e6\u7406\u3068\u5206\u6790\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u5206\u6563\u30b7\u30b9\u30c6\u30e0:<\/strong> Scala \u306e Actor \u30e2\u30c7\u30eb\u3068 Akka \u306a\u3069\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u3001\u4e26\u884c\u30b7\u30b9\u30c6\u30e0\u3068\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u306e\u958b\u767a\u3092\u5bb9\u6613\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>Scala \u958b\u767a\u306b\u304a\u3051\u308b\u4e00\u822c\u7684\u306a\u8ab2\u984c\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5b66\u7fd2\u66f2\u7dda\uff1a<\/strong> \u3053\u306e\u8a00\u8a9e\u306e\u8c4a\u5bcc\u306a\u6a5f\u80fd\u30bb\u30c3\u30c8\u306f\u3001\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u521d\u3081\u3066\u5b66\u3076\u958b\u767a\u8005\u306b\u3068\u3063\u3066\u306f\u5b66\u7fd2\u66f2\u7dda\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u30d3\u30eb\u30c9\u6642\u9593:<\/strong> Scala \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u578b\u30b7\u30b9\u30c6\u30e0\u306e\u8907\u96d1\u3055\u3068\u5e83\u7bc4\u306a\u578b\u63a8\u8ad6\u306b\u3088\u308a\u3001\u30d3\u30eb\u30c9\u6642\u9593\u304c\u9577\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u4e92\u63db\u6027:<\/strong> Scala \u306f Java \u3068\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u4e00\u90e8\u306e Java \u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u30b9\u30e0\u30fc\u30ba\u306b\u7d71\u5408\u3055\u308c\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u8ab2\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306b\u306f\u3001\u5fb9\u5e95\u7684\u306a\u5b66\u7fd2\u3001\u52b9\u7387\u7684\u306a\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u305f\u3081\u306e sbt \u306a\u3069\u306e\u30d3\u30eb\u30c9 \u30c4\u30fc\u30eb\u306e\u4f7f\u7528\u3001\u30b9\u30e0\u30fc\u30ba\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u7d71\u5408\u306e\u305f\u3081\u306e\u76f8\u4e92\u904b\u7528\u30e1\u30ab\u30cb\u30ba\u30e0\u306e\u6d3b\u7528\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h2>\u4e3b\u306a\u7279\u5fb4\u3068\u6bd4\u8f03<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u7279\u6027<\/th>\n<th>Java\u3068\u306e\u6bd4\u8f03<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u7c21\u6f54<\/strong><\/td>\n<td>Scala \u306e\u69cb\u6587\u306f\u3088\u308a\u7c21\u6f54\u3067\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4e0d\u5909\u6027<\/strong><\/td>\n<td>Scala \u306f\u8a2d\u8a08\u4e0a\u3001\u4e0d\u5909\u6027\u3092\u91cd\u8996\u3057\u3066\u3044\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u578b\u63a8\u8ad6<\/strong><\/td>\n<td>Scala \u306e\u578b\u63a8\u8ad6\u306b\u3088\u308a\u5197\u9577\u6027\u304c\u524a\u6e1b\u3055\u308c\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6a5f\u80fd\u7684\u7279\u5fb4<\/strong><\/td>\n<td>Scala \u306f\u30cd\u30a4\u30c6\u30a3\u30d6\u95a2\u6570\u30b5\u30dd\u30fc\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Scala\u306b\u95a2\u9023\u3059\u308b\u5c55\u671b\u3068\u5c06\u6765\u306e\u6280\u8853<\/h2>\n<p>Scala \u306e\u5c06\u6765\u306f\u3001\u7d99\u7d9a\u7684\u306a\u9032\u6b69\u3068\u65b0\u305f\u306a\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306b\u3088\u3063\u3066\u6709\u671b\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>Dotty (Scala 3):<\/strong> \u578b\u306e\u5b89\u5168\u6027\u3001\u8868\u73fe\u529b\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u9593\u306e\u6539\u5584\u306b\u91cd\u70b9\u3092\u7f6e\u3044\u305f Scala \u306e\u65b0\u3057\u3044\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u3002<\/li>\n<li><strong>\u30b0\u30e9\u30a2\u30ebVM:<\/strong> Scala \u30b3\u30fc\u30c9\u3092\u30cd\u30a4\u30c6\u30a3\u30d6\u5b9f\u884c\u53ef\u80fd\u30d5\u30a1\u30a4\u30eb\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u8d77\u52d5\u6642\u9593\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u91d1\u5c5e:<\/strong> \u6539\u5584\u3055\u308c\u305f\u30c4\u30fc\u30eb \u30b5\u30dd\u30fc\u30c8\u3068 IDE \u7d71\u5408\u3092\u63d0\u4f9b\u3059\u308b Scala \u7528\u306e\u8a00\u8a9e\u30b5\u30fc\u30d0\u30fc\u3002<\/li>\n<\/ul>\n<h2>\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u3068 Scala<\/h2>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001Scala \u306e\u6a5f\u80fd\u3092\u3055\u307e\u3056\u307e\u306a\u76ee\u7684\u3067\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u540c\u6642\u5b9f\u884c\u51e6\u7406:<\/strong> Scala \u306e Actor \u30e2\u30c7\u30eb\u3068 Akka \u30c4\u30fc\u30eb\u30ad\u30c3\u30c8\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u53d7\u4fe1\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u63a5\u7d9a\u3092\u52b9\u7387\u7684\u306b\u7ba1\u7406\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u5206\u6563\u30b7\u30b9\u30c6\u30e0:<\/strong> \u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e Scala \u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc \u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u6a5f\u80fd\u6027\u3068\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u51e6\u7406:<\/strong> \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3067\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u8fc5\u901f\u306a\u30c7\u30fc\u30bf\u51e6\u7406\u3068\u5fdc\u7b54\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u304c\u3001\u3053\u308c\u306f Scala \u306e\u6a5f\u80fd\u7684\u304a\u3088\u3073\u4e26\u884c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u6a5f\u80fd\u3092\u4f7f\u7528\u3057\u3066\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<p>Scala \u3068\u305d\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/www.scala-lang.org\/\" target=\"_new\" rel=\"noopener nofollow\">Scala\u516c\u5f0f\u30b5\u30a4\u30c8<\/a><\/li>\n<li><a href=\"https:\/\/twitter.github.io\/scala_school\/\" target=\"_new\" rel=\"noopener nofollow\">Twitter \u306b\u3088\u308b Scala \u30b9\u30af\u30fc\u30eb<\/a><\/li>\n<li><a href=\"https:\/\/www.coursera.org\/learn\/scala-functional-programming\" target=\"_new\" rel=\"noopener nofollow\">Coursera \u30b3\u30fc\u30b9: Scala \u3067\u306e\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u539f\u5247<\/a><\/li>\n<\/ul>\n<p>\u7d50\u8ad6\u3068\u3057\u3066\u3001Scala \u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u3068\u95a2\u6570\u578b\u30d1\u30e9\u30c0\u30a4\u30e0\u3092\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u7d44\u307f\u5408\u308f\u305b\u305f\u5f37\u529b\u3067\u591a\u7528\u9014\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3068\u3057\u3066\u306e\u5730\u4f4d\u3092\u78ba\u7acb\u3057\u307e\u3057\u305f\u3002\u8868\u73fe\u529b\u8c4a\u304b\u306a\u69cb\u6587\u3001\u95a2\u6570\u578b\u6a5f\u80fd\u3001Java \u3068\u306e\u4e92\u63db\u6027\u306b\u3088\u308a\u3001Scala \u306f\u3001\u540c\u6642\u5b9f\u884c\u6027\u3001\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u51e6\u7406\u3092\u5fc5\u8981\u3068\u3059\u308b\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e\u8cb4\u91cd\u306a\u30c4\u30fc\u30eb\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002Scala \u306f\u9032\u5316\u3092\u7d9a\u3051\u3066\u304a\u308a\u3001\u5c06\u6765\u7684\u306b\u306f\u3055\u3089\u306b\u9769\u65b0\u7684\u3067\u52b9\u7387\u7684\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2 \u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u73fe\u3059\u308b\u53ef\u80fd\u6027\u3092\u79d8\u3081\u3066\u3044\u307e\u3059\u3002<\/p>","protected":false},"featured_media":470413,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478828","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Scala: A Comprehensive Overview<\/mark>","faq_items":[{"question":"What is Scala known for?","answer":"<p>Scala, short for \"Scalable Language,\" is renowned for seamlessly combining object-oriented and functional programming concepts. It offers expressive syntax, immutability, and powerful type inference, making it an ideal choice for modern software development.<\/p>"},{"question":"Who created Scala and when?","answer":"<p>Scala was developed by Martin Odersky, a professor at EPFL, Switzerland. The language's initial ideas were introduced in a 2003 research paper titled \"Pizza into Java,\" and Scala was officially released the same year.<\/p>"},{"question":"How does Scala differ from Java?","answer":"<p>Scala differs from Java in several ways:<\/p><ul><li><strong>Conciseness:<\/strong> Scala's syntax is more concise and expressive.<\/li><li><strong>Immutability:<\/strong> Scala encourages immutability by design.<\/li><li><strong>Functional Features:<\/strong> Scala natively supports functional programming concepts.<\/li><\/ul>"},{"question":"What are the key features of Scala?","answer":"<p>Scala's key features include:<\/p><ul><li><strong>Functional Programming:<\/strong> Embraces immutable data structures, higher-order functions, and pattern matching.<\/li><li><strong>Object-Oriented Programming:<\/strong> Everything is an object, unifying primitive and object types.<\/li><li><strong>Concurrency:<\/strong> Built-in support for concurrency and parallelism through Actors and Akka.<\/li><li><strong>Type Inference:<\/strong> Powerful type inference reduces the need for explicit type annotations.<\/li><\/ul>"},{"question":"How is Scala used in web development?","answer":"<p>Scala's expressive syntax and Play Framework make it suitable for building responsive web applications. Its blend of functional and object-oriented paradigms offers developers a powerful toolkit for creating dynamic web experiences.<\/p>"},{"question":"What is Scala's future direction?","answer":"<p>Scala's future looks promising with the introduction of \"Dotty,\" also known as Scala 3, which aims to enhance type safety and expressiveness. Additionally, technologies like GraalVM and Metals are emerging to improve performance and tooling support.<\/p>"},{"question":"How can proxy servers benefit from Scala?","answer":"<p>Proxy servers can leverage Scala's concurrency handling, distributed system capabilities, and real-time processing features. Scala's Actor model and functional programming support can enhance the efficiency and scalability of proxy server solutions.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/478828","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/478828\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/470413"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=478828"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}