{"id":9762,"date":"2020-02-11T00:00:47","date_gmt":"2020-02-10T15:00:47","guid":{"rendered":"https:\/\/flxy.jp\/?p=9762"},"modified":"2025-05-06T17:59:08","modified_gmt":"2025-05-06T08:59:08","slug":"java%e3%81%8b%e3%82%89%e3%81%ae%e7%a7%bb%e8%a1%8c%e7%b5%8c%e9%a8%93%e8%80%85%e3%81%8c%e6%84%9f%e5%8b%95%e3%81%99%e3%82%8bkotlin%e5%85%a5%e9%96%80%e3%80%82%e5%88%9d%e5%bf%83%e8%80%85%e5%90%91%e3%81%91","status":"publish","type":"post","link":"https:\/\/flxy.jp\/media\/article\/9762","title":{"rendered":"Kotlin\u5165\u9580\uff5c\u521d\u5fc3\u8005\u304c\u77e5\u308b\u3079\u304d\u52c9\u5f37\u306e\u30dd\u30a4\u30f3\u30c8\u3068Java\u304b\u3089\u306e\u79fb\u884c\u30e1\u30ea\u30c3\u30c8"},"content":{"rendered":"<!-- 6\/28\u306f\u3066\u306a\u5e83\u544a\u7528\u306b\u30bf\u30a4\u30c8\u30eb\u5909\u66f4\u3002\u65e7\u30bf\u30a4\u30c8\u30eb\u300cJava\u304b\u3089\u306e\u79fb\u884c\u7d4c\u9a13\u8005\u304c\u611f\u52d5\u3059\u308bKotlin\u5165\u9580\u3002\u521d\u5fc3\u8005\u5411\u3051\u52c9\u5f37\u6cd5\u3082\u304f\u308f\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u300d -->\n\n<p>\u30e4\u30d5\u30fc\u682a\u5f0f\u4f1a\u793e\u3067Android\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u3057\u3066\u3044\u308b\u7247\u6df5\u96c4\u4ecb\uff08<a href=\"https:\/\/twitter.com\/Buchi_orz\">@Buchi_orz<\/a>\uff09\u3068\u7533\u3057\u307e\u3059\u3002\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3001iOS\u3001Android\u306a\u3069\u69d8\u3005\u306a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u7d4c\u9a13\u3057\u3001\u73fe\u5728\u306fYahoo!\u30cb\u30e5\u30fc\u30b9\u306eAndroid\u30a2\u30d7\u30ea\u3092\u62c5\u5f53\u3057\u3066\u3044\u307e\u3059\u3002\u4eca\u56de\u306f\u3053\u308c\u304b\u3089Kotlin\u3092\u59cb\u3081\u3088\u3046\u3068\u3059\u308b\u8aad\u8005\u306b\u3001Kotlin\u306e\u9b45\u529b\u3068\u6700\u521d\u306b\u77e5\u3063\u3066\u304a\u304d\u3079\u304d\u30dd\u30a4\u30f3\u30c8\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<!--more--><\/p>\n\n<!--CTA\u30dc\u30bf\u30f3\uff1a\u3053\u3053\u304b\u3089\u30b3\u30d4\u30fc-->\n\n<div class=\"cta-btn-box\">\n<p>\u6848\u4ef6\u63a2\u3057\u306e\u60a9\u307f\u4ea4\u6e09\u306e\u4e0d\u5b89\u3001\u5c02\u4efb\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u304c\u5168\u3066\u30b5\u30dd\u30fc\u30c8<\/p>\n<a href=\"https:\/\/flxy.jp\/form\/expert\/input\" class=\"cta-btn-01\">\u4eca\u3059\u3050\u7121\u6599\u30ad\u30e3\u30ea\u30a2\u76f8\u8ac7\u3092\u7533\u3057\u8fbc\u3080<\/a>\n<\/div>\n\n<!--CTA\u30dc\u30bf\u30f3\uff1a\u3053\u3053\u307e\u3067\u30b3\u30d4\u30fc-->\n\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">\u76ee\u6b21<\/p><ul class=\"toc_list\"><li><a href=\"#iOSAndroidKotlin\">\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3001iOS\u3001Android\u3068\u69d8\u3005\u306a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u7d4c\u9a13\u3057\u3066Kotlin\u306b\u305f\u3069\u308a\u7740\u304f<\/a><\/li><li><a href=\"#JavaKotlin5\">Java\u304b\u3089Kotlin\u306b\u79fb\u884c\u3057\u305f\u3068\u304d\u306e\u611f\u52d55\u3064\u306e\u30dd\u30a4\u30f3\u30c8<\/a><ul><li><a href=\"#1\">1. \u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u3067\u77ed\u304f\u66f8\u3051\u308b<\/a><\/li><li><a href=\"#2_Null\">2. Null\u5b89\u5168\u3067\u30af\u30e9\u30c3\u30b7\u30e5\u3092\u9632\u3052\u308b<\/a><\/li><li><a href=\"#3\">3. \u30ea\u30b9\u30c8\u64cd\u4f5c\u3092\u6c17\u6301\u3061\u3088\u304f\u66f8\u3051\u308b<\/a><\/li><li><a href=\"#4\">4. \u30c7\u30d5\u30a9\u30eb\u30c8\u5f15\u6570\u3068\u540d\u524d\u4ed8\u304d\u5f15\u6570\u3067\u4e0d\u5177\u5408\u304c\u8d77\u3053\u308b\u306e\u3092\u9632\u3050<\/a><\/li><li><a href=\"#5_Kotlin_KTX\">5. Kotlin KTX\u3067\u5b9f\u88c5\u91cf\u304c\u6e1b\u308b<\/a><\/li><\/ul><\/li><li><a href=\"#Kotlin\">Kotlin\u306e\u52c9\u5f37\u3092\u59cb\u3081\u308b\u969b\u306e\u30dd\u30a4\u30f3\u30c8<\/a><ul><li><a href=\"#Kotlin-2\">Kotlin\u30b9\u30bf\u30fc\u30c8\u30d6\u30c3\u30af<\/a><\/li><li><a href=\"#Kotlin-3\">Kotlin\u30a4\u30f3\u30fb\u30a2\u30af\u30b7\u30e7\u30f3<\/a><\/li><li><a href=\"#Kotlin-4\">Kotlin\u516c\u5f0f\u30b5\u30a4\u30c8<\/a><\/li><\/ul><\/li><li><a href=\"#Kotlin-5\">\u6700\u5f8c\u306b\u30fc\u30fcKotlin\u306e\u5b66\u7fd2\u30b3\u30b9\u30c8\u306f\u305d\u3053\u307e\u3067\u9ad8\u304f\u306a\u3044<\/a><\/li><\/ul><\/div>\n<h2 id=\"0\"><span id=\"iOSAndroidKotlin\">\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3001iOS\u3001Android\u3068\u69d8\u3005\u306a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u7d4c\u9a13\u3057\u3066Kotlin\u306b\u305f\u3069\u308a\u7740\u304f<\/span><\/h2>\n\n<p>\u79c1\u306f\u30a6\u30a7\u30d6\u5236\u4f5c\u4f1a\u793e\u3067\u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2\u304b\u3089\u30ad\u30e3\u30ea\u30a2\u3092\u30b9\u30bf\u30fc\u30c8\u3057\u307e\u3057\u305f\u3002\u4ee5\u964d\u3001iOS\u3001Android\u306a\u3069\u69d8\u3005\u306a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u30d7\u30ed\u30c0\u30af\u30c8\u306b\u643a\u308f\u308a\u30012016\u5e74\u306b\u30e4\u30d5\u30fc\u682a\u5f0f\u4f1a\u793e\u306bAndroid\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u3057\u3066\u53c2\u753b\u30022019\u5e74\u3088\u308aYahoo!\u30cb\u30e5\u30fc\u30b9\u306eAndroid\u30a2\u30d7\u30ea\u3092\u62c5\u5f53\u3057\u3066\u3044\u307e\u3059\u3002iOS\u30a2\u30d7\u30ea\u306e\u958b\u767a\u3068Android\u958b\u767a\u3092\u6bd4\u8f03\u3059\u308b\u3068\u3001Android\u958b\u767a\u306f\u81ea\u7531\u5ea6\u304c\u9ad8\u3044\u3068\u8a00\u3048\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5de5\u592b\u306e\u3057\u304c\u3044\u3082\u3042\u308a\u3001\u305d\u3053\u304c\u697d\u3057\u3055\u306b\u3064\u306a\u304c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n<p>\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306f2\u5e74\u3001iOS\u306f2\u5e74\u3001Android\u306f6\u5e74\u7d4c\u9a13\u3057\u3066\u3044\u307e\u3059\u3002\u8a00\u8a9e\u3068\u3057\u3066\u306f\u30a6\u30a7\u30d6\u5236\u4f5c\u4f1a\u793e\u6642\u4ee3\u304b\u3089Java\u3092\u5229\u7528\u3057\u3066\u304a\u308a\u3001\u305d\u306eKotlin\u79fb\u884c\u3092\u884c\u3063\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n\n<p>Java\u3082Kotlin\u3082\u89e6\u3063\u3066\u304d\u3066\u306f\u3058\u3081\u3066\u308f\u304b\u308b\u3053\u3068\u306a\u306e\u3067\u3059\u304c\u3001Kotlin\u306f\u3068\u3066\u3082\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3057\u3084\u3059\u3044\u30dd\u30a4\u30f3\u30c8\u304c\u591a\u304f\u3001\u306f\u3058\u3081\u3066\u89e6\u308c\u305f\u6642\u306b\u306f\u611f\u52d5\u3057\u307e\u3057\u305f\u30025\u3064\u306b\u7d5e\u3063\u3066\u305d\u306e\u9b45\u529b\u3092\u304a\u4f1d\u3048\u3057\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n<!--CTA\u30dc\u30bf\u30f3\uff1a\u3053\u3053\u304b\u3089\u30b3\u30d4\u30fc-->\n\n<div class=\"cta-btn-box\">\n<p>\u6848\u4ef6\u63a2\u3057\u306e\u60a9\u307f\u4ea4\u6e09\u306e\u4e0d\u5b89\u3001\u5c02\u4efb\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u304c\u5168\u3066\u30b5\u30dd\u30fc\u30c8<\/p>\n<a href=\"https:\/\/flxy.jp\/form\/expert\/input\" class=\"cta-btn-01\">\u4eca\u3059\u3050\u7121\u6599\u30ad\u30e3\u30ea\u30a2\u76f8\u8ac7\u3092\u7533\u3057\u8fbc\u3080<\/a>\n<\/div>\n\n<!--CTA\u30dc\u30bf\u30f3\uff1a\u3053\u3053\u307e\u3067\u30b3\u30d4\u30fc-->\n\n<h2 id=\"1\"><span id=\"JavaKotlin5\">Java\u304b\u3089Kotlin\u306b\u79fb\u884c\u3057\u305f\u3068\u304d\u306e\u611f\u52d55\u3064\u306e\u30dd\u30a4\u30f3\u30c8<\/span><\/h2>\n\n<p>\u79c1\u304cKotlin\u3092\u59cb\u3081\u305f\u306e\u306f2016\u5e74\u3002\u6700\u521d\u306f\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u304b\u3089\u5b9f\u9a13\u7684\u306b\u5c0e\u5165\u3092\u59cb\u3081\u307e\u3057\u305f\u3002Kotlin\u306f\u3001Java\u306b\u6bd4\u3079\u3066\u5fc5\u8981\u306a\u8a18\u8ff0\u91cf\u304c\u6e1b\u308b\u306e\u3067\u3001\u30b3\u30fc\u30c9\u3092\u8aad\u3080\u306e\u3082\u697d\u306b\u306a\u308a\u307e\u3059\u3057\u3001Java \u304b\u3089Kotlin\u3078\u306e\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u6642\u306b\u306f\u30ea\u30b9\u30c8\u64cd\u4f5c\u306a\u3093\u304b\u3082\u6c17\u6301\u3061\u3088\u304f\u66f8\u3051\u307e\u3059\u3002\u8a18\u8ff0\u91cf\u306f\u6e1b\u308b\u306e\u3067\u3059\u304c\u3001\u81ea\u7531\u5ea6\u306f\u9ad8\u3044\u306e\u3067\u3001Android\u958b\u767a\u306e\u918d\u9190\u5473\u3068\u3057\u3066\u611f\u3058\u3066\u3044\u308b\u697d\u3057\u3055\u306f\u6e1b\u3063\u3066\u304a\u3089\u305a\u3001\u3080\u3057\u308dKotlin\u3060\u3068\u3055\u3089\u306b\u5de5\u592b\u306e\u3057\u304c\u3044\u304c\u51fa\u3066\u304d\u305f\u3068\u611f\u3058\u3066\u3044\u307e\u3059\u3002<\/p>\n\n<p>\u307e\u305f\u3001Java\u3068Kotlin\u306f\u4e92\u63db\u6027\u3082\u3042\u308a\u3001\u5c0e\u5165\u30b3\u30b9\u30c8\u306f\u4f4e\u304f\u3001\u5c0e\u5165\u3059\u308b\u3053\u3068\u306b\u3088\u308b\u30e1\u30ea\u30c3\u30c8\u306e\u307b\u3046\u304c\u591a\u3044\u3068\u8a00\u3048\u307e\u3059\u3002\u305d\u3053\u3067\u611f\u3058\u305f5\u3064\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n<h3 id=\"2\"><span id=\"1\">1. \u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u3067\u77ed\u304f\u66f8\u3051\u308b<\/span><\/h3>\n\n<p>\u307e\u305a1\u3064\u76ee\u306f\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u3002<\/p>\n\n<p>\u4f8b\u3048\u3070\u3001Java\u3067\u66f8\u3044\u3066\u3044\u305f\u3053\u3061\u3089\u306e\u30b3\u30fc\u30c9\u3002<\/p>\n\n<pre><code class=\"java\">public class ToDo {\nprivate final Strnig _mTitle;\nprivate final String _mText;\n\n\/**\n* \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\n*\/\npublic ToDo(@NonNull final String aTitle,\n@Nullable final String aText) {\n_mTitle = aTitle;\n_mText = aText;\n}\n\npublic String getTitle() {\nreturn _mTitle;\n}\n\npublic String getText() {\nreturn _mText;\n}\n}\n<\/code><\/pre>\n\n<p>Kotlin\u3067\u66f8\u304f\u3068\u3001\u3053\u3053\u307e\u3067\u77ed\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n<pre><code class=\"kotlin\">\/\/ Null\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u5909\u6570\u306e\u5834\u5408\u306f\u578b\u306e\u5f8c\u308d\u306b `?` \u304c\u3064\u304d\u307e\u3059 (Java\u3060\u3068@Nullable)\ndata class ToDo(\nval title: String,\nval text: String?)\n<\/code><\/pre>\n\n<p><img decoding=\"async\" loading=\"lazy\" title=\"sample_01.png\" src=\"https:\/\/flxy.jp\/wp-content\/uploads\/2020\/01\/sample_01.png\" alt=\"Sample 01\" width=\"746\" height=\"444\" border=\"0\" \/><\/p>\n\n<p>\u300cgetter\u3001setter\u306f\u3069\u3053\u306b&#8230;\u300d\u3068\u601d\u308f\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001Kotlin\u306edata\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u5b9f\u88c5\u3059\u308b\u5fc5\u8981\u306f\u306a\u304f\u81ea\u52d5\u7684\u306b\u751f\u6210\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n\n<h3 id=\"3\"><span id=\"2_Null\">2. Null\u5b89\u5168\u3067\u30af\u30e9\u30c3\u30b7\u30e5\u3092\u9632\u3052\u308b<\/span><\/h3>\n\n<p>2\u3064\u76ee\u306bNull\u5b89\u5168\u3002<\/p>\n\n<p>Kotlin\u306fNull\u5b89\u5168\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3068\u3057\u3066\u3082\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5b9f\u884c\u6642\u306b\u610f\u56f3\u3057\u3066\u3044\u306a\u3044\u7b87\u6240\u3067NullPointerException\u304c\u767a\u751f\u3057\u3066\u30a2\u30d7\u30ea\u304c\u30af\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u3088\u3046\u306a\u4e8b\u614b\u3082\u9632\u3052\u307e\u3059\u3002<\/p>\n\n<p>\u4e0a\u8a18\u306eKotlin\u306e\u4f8b\u3067\u3082\u300c?\u300d\u30de\u30fc\u30af\u304c2\u7b87\u6240\u3064\u3044\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u8a18\u8ff0\u306b\u3088\u308a\u3001Null\u8a31\u5bb9\u578b\u3068\u306a\u308a\u3001\u30de\u30fc\u30af\u3092\u3064\u3051\u306a\u304b\u3063\u305f\u5834\u5408\u306fNull\u975e\u8a31\u5bb9\u578b\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n<p>\u5b9f\u969b\u306b\u3069\u306e\u3088\u3046\u306b\u4f7f\u3046\u306e\u304b\u3001\u30b3\u30fc\u30c9\u3067\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n<pre><code class=\"kotlin\">fun main(args : Array) {\n\/\/ Null\u975e\u8a31\u5bb9\u578b\u306eToDo\u3092\u751f\u6210\nval todo: ToDo = ToDo(\"title\", \"text\")\n\n\/\/ title\u30d7\u30ed\u30d1\u30c6\u30a3\u306fNull\u975e\u8a31\u5bb9\u306a\u306e\u3067OK\nprintString(todo.title)\n\n\/\/ text\u30d7\u30ed\u30d1\u30c6\u30a3\u306fNull\u8a31\u5bb9\u306e\u305f\u3081\u30a8\u30e9\u30fc\u3068\u306a\u308b\nprintString(todo.text)\n\n\/\/ Null\u8a31\u5bb9\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5834\u5408\u3001Kotlin\u306e\u30b9\u30b3\u30fc\u30d7\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u51fa\u529b\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3068\u306a\u308b\ntodo.text?.let {\nprintString(it)\n}\n\n\/\/ Kotlin\u306e\u30a8\u30eb\u30d3\u30b9\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308aNull\u306e\u5834\u5408\u3001\u7a7a\u6587\u5b57\u3092\u51fa\u529b\u3055\u305b\u308b\u3053\u3068\u3082\u53ef\u80fd\u3068\u306a\u308b\nprintString(todo.text ?: \"\")\n}\n\n\/**\n* Null\u975e\u8a31\u5bb9\u306e\u5f15\u6570text\u3092Log\u51fa\u529b\n*\/\nfun printString(text: String) {\nprintln(text)\n}\n<\/code><\/pre>\n\n<p><img decoding=\"async\" loading=\"lazy\" title=\"sample_02.png\" src=\"https:\/\/flxy.jp\/wp-content\/uploads\/2020\/01\/sample_02.png\" alt=\"Sample 02\" width=\"747\" height=\"447\" border=\"0\" \/><\/p>\n\n<p>\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u3042\u307e\u308a\u5229\u70b9\u304c\u611f\u3058\u3089\u308c\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001API\u901a\u4fe1\u3092\u884c\u3046\u969b\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u3068\u304d\u306a\u3069\u306b\u5a01\u529b\u3092\u767a\u63ee\u3057\u307e\u3059\u3002<\/p>\n\n<h3 id=\"4\"><span id=\"3\">3. \u30ea\u30b9\u30c8\u64cd\u4f5c\u3092\u6c17\u6301\u3061\u3088\u304f\u66f8\u3051\u308b<\/span><\/h3>\n\n<p>3\u3064\u76ee\u306b\u30ea\u30b9\u30c8\u64cd\u4f5c\u3002<\/p>\n\n<p>Kotlin\u72ec\u81ea\u306e\u3082\u306e\u3067\u306f\u306a\u3044\u306e\u3067\u3001\u771f\u65b0\u3057\u3055\u3092\u611f\u3058\u308b\u65b9\u306f\u5c11\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001Android\u958b\u767a\u306b\u304a\u3044\u3066Java\u3067\u66f8\u3044\u3066\u3044\u305f\u3088\u3046\u306a\u30ea\u30b9\u30c8\u64cd\u4f5c\u3092Kotlin\u3060\u3068\u6c17\u6301\u3061\u3088\u304f\u66f8\u3051\u307e\u3059\u3002<\/p>\n\n<p>\u4f8b\u3048\u3070\u3001List\u306b\u5165\u3063\u3066\u3044\u308b\u6587\u5b57\u5217\u3092\u5168\u3066\u5927\u6587\u5b57\u306b\u5909\u63db\u3057\u305f\u3044\u5834\u5408\u306f\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n\n<pre><code class=\"kotlin\">\/\/ \u6587\u5b57\u5217\u306e\u914d\u5217\u3092\u4f5c\u6210\nval strList: List = listOf(\"first\", \"second\", \"third\")\n\nval newStrList: List = strList.map { it.toUpperCase() }\n<\/code><\/pre>\n\n<p>\u5927\u6587\u5b57\u306b\u5909\u63db\u3059\u308b\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u6587\u5b57\u6570\u304c5\u6587\u5b57\u306e\u3082\u306e\u3092\u62bd\u51fa\u3057\u305f\u3044\u5834\u5408\u3082\u540c\u69d8\u306b\u7c21\u5358\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n<pre><code class=\"kotlin\">\/\/ \u6587\u5b57\u5217\u306e\u914d\u5217\u3092\u4f5c\u6210\nval strList: List = listOf(\"first\", \"second\", \"third\")\n\nval newStrList: List = strList.map {\nit.toUpperCase()\n}.filter {\nit.length == 5\n}\n<\/code><\/pre>\n\n<p><img decoding=\"async\" loading=\"lazy\" title=\"sample_03.png\" src=\"https:\/\/flxy.jp\/wp-content\/uploads\/2020\/01\/sample_03.png\" alt=\"Sample 03\" width=\"747\" height=\"447\" border=\"0\" \/><\/p>\n\n<p>\u4ed6\u306b\u3082\u30ea\u30b9\u30c8\u64cd\u4f5c\u3092\u3059\u308b\u4e0a\u3067\u4fbf\u5229\u306a\u95a2\u6570\u304c\u6a19\u6e96\u3067\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u30ea\u30b9\u30c8\u64cd\u4f5c\u3092\u3059\u308b\u306e\u304c\u697d\u3057\u304f\u306a\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n<h3 id=\"5\"><span id=\"4\">4. \u30c7\u30d5\u30a9\u30eb\u30c8\u5f15\u6570\u3068\u540d\u524d\u4ed8\u304d\u5f15\u6570\u3067\u4e0d\u5177\u5408\u304c\u8d77\u3053\u308b\u306e\u3092\u9632\u3050<\/span><\/h3>\n\n<p>4\u3064\u76ee\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u5f15\u6570\u3068\u540d\u524d\u4ed8\u304d\u5f15\u6570\u3002<\/p>\n\n<p>Java\u306e\u5834\u5408\u3060\u3068\u5f15\u6570\u306e\u9055\u3046\u30e1\u30bd\u30c3\u30c9\u3092\u7528\u610f\u3057\u3088\u3046\u3068\u3057\u305f\u5834\u5408\u3001\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u3067\u5b9f\u88c5\u3057\u305f\u308a\u3001Builder\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u7528\u3057\u305f\u308a\u3059\u308b\u304b\u3082\u3057\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001Kotlin\u3067\u3042\u308c\u3070\u7c21\u5358\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n<p>\u5f15\u6570\u306e\u9806\u5e8f\u306b\u95a2\u3057\u3066\u3082\u3001\u540d\u524d\u4ed8\u304d\u3067\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u53ef\u80fd\u306a\u306e\u3067\u3001\u610f\u56f3\u3057\u306a\u3044\u7b87\u6240\u306b\u5024\u3092\u5165\u308c\u3066\u3057\u307e\u3046\u3088\u3046\u306a\u4e0d\u5177\u5408\u3092\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n<p>\u4f8b\u3068\u3057\u3066\u3001id\u3001title\u3001text\u8981\u7d20\u3092\u6301\u3063\u305f\u30c7\u30fc\u30bf\u30af\u30e9\u30b9Note\u3092\u307f\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n<pre><code class=\"kotlin\">\/\/ id\u4ee5\u5916\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u5f15\u6570\u3092\u6301\u3064\ndata class Note(\nval id: Int,\nval title: String = \"\",\nval text: String = \"\")\n\n\/\/ \u5168\u3066\u306e\u5f15\u6570\u3092\u6307\u5b9a\u3057\u3066\u751f\u6210\nval hogeNote = Note(0, \"hoge\", \"fuga\")\n\n\/\/ text\u4ee5\u5916\u3092\u6307\u5b9a\u3057\u3066\u751f\u6210\nval fugaNote = Note(0, \"hoge\")\n\n\/\/ title\u4ee5\u5916\u3092\u6307\u5b9a\u3057\u3066\u751f\u6210 (\u540d\u524d\u4ed8\u304d\u5f15\u6570\u3092\u4f7f\u7528\u3059\u308b)\nval piyoNote = Note(id = 0, text = \"fuga\")\n\n\/\/ id\u306e\u307f\u6307\u5b9a\u3057\u3066\u751f\u6210\nval fooNote = Note(0)\n\n\/\/ id\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u5f15\u6570\u3092\u6301\u305f\u306a\u3044\u306e\u3067\u4ee5\u4e0b\u306e\u4f8b\u306f\u30a8\u30e9\u30fc\u3068\u306a\u308b\nval barNote = Note()\n<\/code><\/pre>\n\n<p><img decoding=\"async\" loading=\"lazy\" title=\"sample_04.png\" src=\"https:\/\/flxy.jp\/wp-content\/uploads\/2020\/01\/sample_04.png\" alt=\"Sample 04\" width=\"747\" height=\"447\" border=\"0\" \/><\/p>\n\n<p>\u4e0a\u8a18\u306e\u4f8b\u3060\u3068\u5c11\u3057\u7c21\u5358\u3059\u304e\u308b\u306e\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306bRetrofit\u3092\u4f7f\u7528\u3057\u3066API\u901a\u4fe1\u3092\u884c\u3046\u4f8b\u3092\u307f\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n<pre><code>\/\/ API\nclass NoteRepositoryImpl {\ninterface Service {\n@GET(ApiUrl.NOTES)\nfun getAllNote(\n@Query(\"os\") type: String = \"android\"\n): Single&amp;lt;List&amp;gt;\n}\n\nfun load(): Single&amp;lt;List&amp;gt; {\nval service = Retrofit.Builder()\n.baseUrl(BASE_URL)\n.addConverterFactory(GsonConverterFactory.create())\n.addCallAdapterFactory(RxJava2CallAdapterFactory.create())\n.client(OkHttpClient.Builder().build())\n.build()\n.create(Service::class.java)\n\n\/\/ \u5f15\u6570\u3092\u6307\u5b9a\u3057\u3066\u3044\u306a\u3044\u306e\u3067API\u901a\u4fe1\u6642\u306bos\u306e\u5024\u306fandroid\u3068\u3057\u3066\u9001\u3089\u308c\u308b\nreturn service.getAllNote()\n}\n}\n<\/code><\/pre>\n\n<p><img decoding=\"async\" loading=\"lazy\" title=\"sample_05.png\" src=\"https:\/\/flxy.jp\/wp-content\/uploads\/2020\/01\/sample_05.png\" alt=\"Sample 05\" width=\"746\" height=\"447\" border=\"0\" \/><\/p>\n\n<p>\u3053\u306e\u3088\u3046\u306a\u5b9f\u88c5\u3092\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u5fc5\u8981\u306a\u5834\u5408\u306b\u306f\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6307\u5b9a\u3001\u4e0d\u8981\u306a\u5834\u5408\u306b\u306f\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6307\u5b9a\u305b\u305a\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n<p>\u30c7\u30d5\u30a9\u30eb\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u5909\u66f4\u306b\u306a\u3063\u305f\u5834\u5408\u3082\u3001\u547c\u3073\u51fa\u3057\u5148\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5909\u66f4\u3059\u308b\u3060\u3051\u306a\u306e\u3067\u7c21\u5358\u3067\u3059\u306d\u3002<\/p>\n\n<h3 id=\"6\"><span id=\"5_Kotlin_KTX\">5. Kotlin KTX\u3067\u5b9f\u88c5\u91cf\u304c\u6e1b\u308b<\/span><\/h3>\n\n<p>\u6700\u5f8c\u306bKotlin KTX\u3002<\/p>\n\n<p>Kotlin KTX\u3068\u306f\u3001Kotlin\u306e\u62e1\u5f35\u6a5f\u80fd\u30bb\u30c3\u30c8 (Kotlin extensions) \u3067\u3042\u308a\u3001Kotlin\u3092\u3082\u3063\u3068\u4fbf\u5229\u306b\u4f7f\u3046\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u3066\u304f\u308c\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n\n<p>\u5c0e\u5165\u3082\u7c21\u5358\u3067\u3001build.gradle (\u30d3\u30eb\u30c9\u30c4\u30fc\u30eb) \u306edependencies\u306b\u4f7f\u3044\u305f\u3044\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u8a18\u8ff0\u3057\u3066Sync\u3059\u308b\u3060\u3051\u3067\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n<p>Kotlin KTX \u3092\u4f7f\u7528\u3057\u306a\u304b\u3063\u305f\u5834\u5408\u3068\u3001\u4f7f\u7528\u3057\u305f\u5834\u5408\u306e\u9055\u3044\u3092\u307f\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n<pre><code class=\"kotlin\">\/**\n* View\u306e\u8868\u793a\u30fb\u975e\u8868\u793a\n* Core KTX\n*\/\n\/\/ Kotlin KTX\u3092\u4f7f\u7528\u3057\u306a\u304b\u3063\u305f\u5834\u5408\nif (hoge &amp;gt; 0) {\nview.visibility = VIEW.VISIBLE\n} else {\nview.visibility = VIEW.GONE\n}\n\n\/\/ Kotlin KTX\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\nview.isVisible = hoge &amp;gt; 0\n\n\/**\n* Bundle\u3092\u4f5c\u6210\n* Core KTX\n*\/\n\/\/ Kotlin KTX\u3092\u4f7f\u7528\u3057\u306a\u304b\u3063\u305f\u5834\u5408\nval bundle = Bundle()\nbundle.putString(\"hoge\", \"fuga\")\nbundle.putBoolean(\"isHoge\", true)\n\n\/\/ \u30b9\u30b3\u30fc\u30d7\u95a2\u6570\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\nval bundle = Bundle().apply {\nputString(\"hoge\", \"fuga\")\nputBoolean(\"isHoge\", true)\n}\n\n\/\/ Kotlin KTX\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\nval bundle = bundleOf(\n\"hoge\" to \"fuga\",\n\"isHoge\" to true)\n\n\/**\n* ViewModel\u3092\u751f\u6210\n* Fragment KTX\n*\/\n\/\/ Kotlin KTX\u3092\u4f7f\u7528\u3057\u306a\u304b\u3063\u305f\u5834\u5408\nval viewModel by lazy {\nViewModelProviders.of(this).get(HogeViewModel::class.java)\n}\n\n\/\/ Kotlin KTX\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\nval viewModel: HogeViewModel by ViewModels()\n<\/code><\/pre>\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001Kotlin KTX\u3092\u4f7f\u3046\u3053\u3068\u306b\u3088\u308a\u5b9f\u88c5\u3057\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u91cf\u304c\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n<p>\u4eca\u5f8c\u3082\u4fbf\u5229\u306a\u62e1\u5f35\u6a5f\u80fd\u304c\u5897\u3048\u3066\u3044\u304f\u306f\u305a\u3067\u3059\u3002\u305d\u3057\u3066\u3001Kotlin\u3067\u306f\u7c21\u5358\u306b\u3053\u306e\u3088\u3046\u306a\u62e1\u5f35\u6a5f\u80fd\u3092\u81ea\u5206\u3067\u4f5c\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002Java\u3060\u3068\u9762\u5012\u3060\u3063\u305f\u51e6\u7406\u3082Kotlin\u3060\u3068\u7c21\u5358\u306b\u66f8\u3051\u308b\u306e\u3067\u3001\u3069\u3093\u3069\u3093\u4f7f\u3063\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n<p>\u4ee5\u4e0a\u3001\u79c1\u304cKotlin\u306e\u958b\u767a\u3092\u59cb\u3081\u305f\u969b\u306b\u611f\u52d5\u3057\u305f\u30dd\u30a4\u30f3\u30c8\u30925\u3064\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<\/p>\n\n<p>\u4ed6\u306b\u3082\u3001Java\u306e\u5834\u5408\u3060\u3068\u30af\u30e9\u30b9\u540d\u3068\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u540c\u3058\u306b\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u304b\u3063\u305f\u306e\u304c\u3001Kotlin\u3060\u30681\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u8907\u6570\u306e\u30af\u30e9\u30b9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u305f\u308a\u3001\u62e1\u5f35\u95a2\u6570\u3068\u3044\u3046\u65e2\u5b58\u306e\u30af\u30e9\u30b9\u306b\u30e6\u30fc\u30b6\u30fc\u304c\u72ec\u81ea\u3067\u62e1\u5f35\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u6a5f\u80fd\u304c\u3042\u3063\u305f\u308a\u3068Java\u3068\u6bd4\u3079\u308b\u3068\u4fbf\u5229\u306a\u6a5f\u80fd\u304c\u3044\u304f\u3064\u3082\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n<!--CTA\u30dc\u30bf\u30f3\uff1a\u3053\u3053\u304b\u3089\u30b3\u30d4\u30fc-->\n\n<div class=\"cta-btn-box\">\n<p>\u6848\u4ef6\u63a2\u3057\u306e\u60a9\u307f\u4ea4\u6e09\u306e\u4e0d\u5b89\u3001\u5c02\u4efb\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u304c\u5168\u3066\u30b5\u30dd\u30fc\u30c8<\/p>\n<a href=\"https:\/\/flxy.jp\/form\/expert\/input\" class=\"cta-btn-01\">\u4eca\u3059\u3050\u7121\u6599\u30ad\u30e3\u30ea\u30a2\u76f8\u8ac7\u3092\u7533\u3057\u8fbc\u3080<\/a>\n<\/div>\n\n<!--CTA\u30dc\u30bf\u30f3\uff1a\u3053\u3053\u307e\u3067\u30b3\u30d4\u30fc-->\n\n<h2 id=\"7\"><span id=\"Kotlin\">Kotlin\u306e\u52c9\u5f37\u3092\u59cb\u3081\u308b\u969b\u306e\u30dd\u30a4\u30f3\u30c8<\/span><\/h2>\n\n<p>\u4e0a\u8a18\u306e5\u3064\u306e\u30dd\u30a4\u30f3\u30c8\u3067\u8aac\u660e\u3057\u305f\u3088\u3046\u306b\u3001Java\u3067\u5b9f\u88c5\u3057\u3088\u3046\u3068\u601d\u3046\u3068\u5c11\u3057\u9762\u5012\u3060\u3063\u305f\u51e6\u7406\u3082\u3001Kotlin\u3060\u3068\u7c21\u5358\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5fc5\u7136\u7684\u306b\u30b3\u30fc\u30c9\u306e\u8a18\u8ff0\u91cf\u3082\u6e1b\u308a\u3057\u3001\u53ef\u8aad\u6027\u3082\u3088\u304f\u306a\u308a\u307e\u3059\u3002Android\u958b\u767a\u3067\u306f\u516c\u5f0f\u8a00\u8a9e\u3068\u3057\u3066\u63a1\u7528\u3055\u308c\u3066\u304a\u308a\u3001Kotlin\u3092\u4f7f\u308f\u306a\u3044\u3068\u3044\u3046\u624b\u306f\u8003\u3048\u3089\u308c\u306a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n<p>\u3057\u304b\u3057\u3001\u300c\u65b0\u3057\u304fKotlin\u3092\u5b66\u307c\u3046\u3068\u3057\u3066\u3082\u3069\u3053\u304b\u3089\u59cb\u3081\u305f\u3089\u3044\u3044\u304b\u308f\u304b\u3089\u306a\u3044\u300d\u3068\u3044\u3046\u65b9\u3082\u5c11\u306a\u304f\u306a\u3044\u3067\u3057\u3087\u3046\u3002\u305d\u3053\u3067\u3001\u79c1\u304cKotlin\u3092\u5b66\u3076\u306b\u3042\u305f\u3063\u3066\u53c2\u8003\u306b\u3057\u305f\u66f8\u7c4d\u3084Web\u30b5\u30a4\u30c8\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n<h3 id=\"8\"><span id=\"Kotlin-2\">Kotlin\u30b9\u30bf\u30fc\u30c8\u30d6\u30c3\u30af<\/span><\/h3>\n\n<p>\u300c<a href=\"https:\/\/www.amazon.co.jp\/dp\/4865940391\/\">Kotlin\u30b9\u30bf\u30fc\u30c8\u30d6\u30c3\u30af &#8211; \u65b0\u3057\u3044Android\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0<\/a>\u300d\u3001\u901a\u79f0\u300c\u8d64\u3079\u3053\u672c\u300d\u3002Kotlin\u7b2c1\u4eba\u8005\u306e\u9577\u6fa4\u592a\u90ce\u3055\u3093\u306e\u672c\u3067\u3059\u3002<\/p>\n\n<p>Kotlin\u306e\u6587\u6cd5\u3060\u3051\u3067\u306a\u304f\u3001\u5b9f\u969b\u306b\u3069\u306e\u3088\u3046\u306bKotlin\u3092\u4f7f\u3048\u3070\u3044\u3044\u306e\u304b\u304c\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u304b\u3089Kotlin\u3092\u59cb\u3081\u3066\u307f\u3088\u3046\u3068\u3044\u3046\u65b9\u306b\u306f\u4e00\u756a\u304a\u3059\u3059\u3081\u3067\u304d\u308b\u672c\u3067\u3059\u3002<\/p>\n\n<h3 id=\"9\"><span id=\"Kotlin-3\">Kotlin\u30a4\u30f3\u30fb\u30a2\u30af\u30b7\u30e7\u30f3<\/span><\/h3>\n\n<p>\u300c<a href=\"https:\/\/www.amazon.co.jp\/dp\/4839961743\/\">Kotlin\u30a4\u30f3\u30fb\u30a2\u30af\u30b7\u30e7\u30f3<\/a>\u300d\u306fKotlin\u3092\u5c11\u3057\u89e6\u3063\u3066\u307f\u3066\u3001\u300c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u9762\u306a\u3069\u3082\u3046\u5c11\u3057\u8a73\u7d30\u3082\u77e5\u308a\u305f\u3044\u300d\u3068\u3044\u3046\u65b9\u306b\u304a\u3059\u3059\u3081\u3067\u304d\u308b\u66f8\u7c4d\u3067\u3059\u3002<\/p>\n\n<p>\u5b8c\u5168\u306b\u521d\u5fc3\u8005\u306e\u65b9\u306b\u306f\u5c11\u3057\u96e3\u3057\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001Kotlin\u306e\u57fa\u790e\u3092\u5b66\u3093\u3060\u5f8c\u306b\u304a\u3059\u3059\u3081\u3067\u304d\u308b\u4e00\u518a\u3067\u3059\u3002<\/p>\n\n<h3 id=\"10\"><span id=\"Kotlin-4\">Kotlin\u516c\u5f0f\u30b5\u30a4\u30c8<\/span><\/h3>\n\n<p>\u300c<a href=\"https:\/\/kotlinlang.org\/\">Kotlin\u516c\u5f0f\u30b5\u30a4\u30c8<\/a>\u300d\u306b\u306f\u5b9f\u969b\u306b\u30b3\u30fc\u30c9\u3092\u89e6\u308a\u306a\u304c\u3089Kotlin\u306e\u8a00\u8a9e\u3092\u5b66\u3076\u3053\u3068\u304c\u3067\u304d\u308b\n\u300c<a href=\"https:\/\/play.kotlinlang.org\/#eyJ2ZXJzaW9uIjoiMS4zLjYxIiwicGxhdGZvcm0iOiJqYXZhIiwiYXJncyI6IiIsImpzQ29kZSI6IiIsIm5vbmVNYXJrZXJzIjp0cnVlLCJ0aGVtZSI6ImlkZWEiLCJjb2RlIjoiLyoqXG4gKiBZb3UgY2FuIGVkaXQsIHJ1biwgYW5kIHNoYXJlIHRoaXMgY29kZS4gXG4gKiBwbGF5LmtvdGxpbmxhbmcub3JnIFxuICovXG5cbmZ1biBtYWluKCkge1xuICAgIHByaW50bG4oXCJIZWxsbywgd29ybGQhISFcIilcbn0ifQ==\">Playground<\/a>\u300d\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n<p>\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u4e00\u901a\u308aKotlin\u306e\u8a00\u8a9e\u4ed5\u69d8\u306a\u3069\u3092\u5b66\u3093\u3060\u5f8c\u306b\u3001\u4e0a\u8a18\u306e\u66f8\u7c4d\u3092\u8aad\u3093\u3067\u307f\u308b\u3068\u3044\u3046\u4f7f\u3044\u65b9\u3082\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n<!--CTA\u30dc\u30bf\u30f3\uff1a\u3053\u3053\u304b\u3089\u30b3\u30d4\u30fc-->\n\n<div class=\"cta-btn-box\">\n<p>\u6848\u4ef6\u63a2\u3057\u306e\u60a9\u307f\u4ea4\u6e09\u306e\u4e0d\u5b89\u3001\u5c02\u4efb\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u304c\u5168\u3066\u30b5\u30dd\u30fc\u30c8<\/p>\n<a href=\"https:\/\/flxy.jp\/form\/expert\/input\" class=\"cta-btn-01\">\u4eca\u3059\u3050\u7121\u6599\u30ad\u30e3\u30ea\u30a2\u76f8\u8ac7\u3092\u7533\u3057\u8fbc\u3080<\/a>\n<\/div>\n\n<!--CTA\u30dc\u30bf\u30f3\uff1a\u3053\u3053\u307e\u3067\u30b3\u30d4\u30fc-->\n\n<h2 id=\"11\"><span id=\"Kotlin-5\">\u6700\u5f8c\u306b\u30fc\u30fcKotlin\u306e\u5b66\u7fd2\u30b3\u30b9\u30c8\u306f\u305d\u3053\u307e\u3067\u9ad8\u304f\u306a\u3044<\/span><\/h2>\n\n<p>\u5b9f\u969b\u306b\u4f55\u3089\u304b\u306e\u958b\u767a\u8a00\u8a9e\u3092\u5b66\u3093\u3060\u3053\u3068\u306e\u3042\u308b\u65b9\u3067\u3042\u308c\u3070\u3001Kotlin\u306e\u5b66\u7fd2\u30b3\u30b9\u30c8\u306f\u305d\u3053\u307e\u3067\u9ad8\u304f\u306a\u3044\u3067\u3057\u3087\u3046\u3002\u5b8c\u5168\u306b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u304c\u521d\u3081\u3066\u306e\u65b9\u3067\u3042\u3063\u3066\u3082\u3001\u66f8\u7c4d\u3084\u516c\u5f0f\u30b5\u30a4\u30c8\u306a\u3069\u5b66\u3076\u74b0\u5883\u306f\u6574\u3063\u3066\u304a\u308a\u3001\u697d\u3057\u304f\u30de\u30b9\u30bf\u30fc\u3067\u304d\u307e\u3059\u3002<\/p>\n\n<p>\u5b9f\u969b\u306b\u696d\u52d9\u3067Kotlin\u3092\u4f7f\u7528\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304b\u3089\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3082\u3088\u304f\u306a\u308a\u30a2\u30d7\u30ea\u306e\u30af\u30e9\u30c3\u30b7\u30e5\u3082\u6e1b\u5c11\u3057\u305f\u3088\u3046\u306b\u611f\u3058\u3066\u3044\u307e\u3059\u3002<\/p>\n\n<p>\u4eca\u56de\u306f\u7d39\u4ecb\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u304c\u3001Kotlin 1.3\u304b\u3089Coroutine\u304cStable\u3068\u3057\u3066\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f\u3002\u4eca\u5f8c\u3082\u9b45\u529b\u7684\u306a\u6a5f\u80fd\u304c\u3069\u3093\u3069\u3093\u8ffd\u52a0\u3055\u308c\u3066\u3044\u304f\u306f\u3059\u3002\u3053\u308c\u3092\u6a5f\u306bKotlin\u3092\u59cb\u3081\u3066\u307f\u3066\u306f\u3044\u304b\u304c\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n\n<p>\u6700\u5f8c\u306b\u79c1\u304c\u958b\u767a\u306b\u643a\u308f\u3063\u3066\u3044\u308bYahoo!\u30cb\u30e5\u30fc\u30b9 \u30a2\u30d7\u30ea\u3082\u305c\u3072\u4f7f\u3063\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u4f55\u304b\u6c17\u306b\u306a\u308b\u70b9\u304c\u3042\u308c\u3070\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u9802\u3051\u308b\u3068\u3068\u3066\u3082\u5b09\u3057\u3044\u3067\u3059\u3002<\/p>\n\n<div class=\"outline_box\"><center>\n<img decoding=\"async\" loading=\"lazy\" title=\"IMG_0900.jpg\" src=\"https:\/\/flxy.jp\/wp-content\/uploads\/2020\/01\/IMG_0900-1.jpg\" alt=\"IMG 0900\" width=\"746\" height=\"498\" border=\"0\" \/><\/center>\n<b>\u7247\u6df5\u96c4\u4ecb\uff08<a href=\"https:\/\/twitter.com\/Buchi_orz\">@Buchi_orz<\/a>\uff09<\/b>\n\u682a\u5f0f\u4f1a\u793e\u30b9\u30d1\u30fc\u30ba\u306b\u3066\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2\u304b\u3089\u30ad\u30e3\u30ea\u30a2\u3092\u30b9\u30bf\u30fc\u30c8\u3001\u682a\u5f0f\u4f1a\u793eDMM.com\u30e9\u30dc\u3092\u7d4c\u3066\u3001\u30e4\u30d5\u30fc\u682a\u5f0f\u4f1a\u793e\u306b\u5165\u793e\u3002\u5973\u6027\u5411\u3051\u30e1\u30c7\u30a3\u30a2TRILL\u3092\u62c5\u5f53\u5f8c\u3001\u73fe\u5728\u30e4\u30d5\u30fc\u682a\u5f0f\u4f1a\u793e\u30e1\u30c7\u30a3\u30a2\u30ab\u30f3\u30d1\u30cb\u30fc \u30e1\u30c7\u30a3\u30a2\u7d71\u62ec\u672c\u90e8\u3067Yahoo!\u30cb\u30e5\u30fc\u30b9\u306eAndroid\u30a2\u30d7\u30ea\u3092\u62c5\u5f53\u3002<\/div>\n\n<div style=\"text-align: right;\"><a href=\"https:\/\/zineinc.co.jp\/\"><span style=\"font-size: 10pt;\">\u7de8\u96c6\u30fb\u64ae\u5f71 \/ 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href=\"https:\/\/flxy.jp\/media\/article\/10976\">Kotlin\u30a8\u30d0\u30f3\u30b8\u30a7\u30ea\u30b9\u30c8\u304c\u89e3\u8aac\uff01\u300eKotlin\u30b9\u30bf\u30fc\u30c8\u30d6\u30c3\u30af\u300f\u8457\u8005\u306b\u3088\u308b\u300cKotlin\u300d\u7fd2\u5f97\u306e\u30b9\u30b9\u30e1<\/a><\/li>\n<li><a href=\"https:\/\/flxy.jp\/media\/article\/23458\">Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5e74\u53ce\u306f? \u5358\u4fa1\u76f8\u5834\u3084\u5c06\u6765\u6027\u3092\u89e3\u8aac<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u30e4\u30d5\u30fc\u682a\u5f0f\u4f1a\u793e\u3067Android\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u3057\u3066\u3044\u308b\u7247\u6df5\u96c4\u4ecb\uff08@Buchi_orz\uff09\u3068\u7533\u3057\u307e\u3059\u3002\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3001iOS\u3001A &#8230; <\/p>","protected":false},"author":1,"featured_media":22748,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[7,727,722,724],"top":[],"infeed":[],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/posts\/9762"}],"collection":[{"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/comments?post=9762"}],"version-history":[{"count":22,"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/posts\/9762\/revisions"}],"predecessor-version":[{"id":35323,"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/posts\/9762\/revisions\/35323"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/media\/22748"}],"wp:attachment":[{"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/media?parent=9762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/categories?post=9762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/tags?post=9762"},{"taxonomy":"top","embeddable":true,"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/top?post=9762"},{"taxonomy":"infeed","embeddable":true,"href":"https:\/\/flxy.jp\/media\/wp-json\/wp\/v2\/infeed?post=9762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}