{"id":6283,"date":"2026-04-28T17:45:23","date_gmt":"2026-04-28T08:45:23","guid":{"rendered":"https:\/\/relasic.jp\/contents\/?post_type=column&#038;p=6283"},"modified":"2026-08-20T16:33:11","modified_gmt":"2026-08-20T07:33:11","slug":"kotlin%e3%82%a8%e3%83%b3%e3%82%b8%e3%83%8b%e3%82%a2%e3%81%ae%e8%bb%a2%e8%81%b7%e3%81%8c%e3%80%8c%e4%bb%8a%e3%80%8d%e3%81%aa%e7%90%86%e7%94%b1-%e2%94%80%e2%94%802030%e5%b9%b4%e3%80%8c79%e4%b8%87","status":"publish","type":"column","link":"https:\/\/c202606.relasic.jp\/contents\/column\/kotlin%e3%82%a8%e3%83%b3%e3%82%b8%e3%83%8b%e3%82%a2%e3%81%ae%e8%bb%a2%e8%81%b7%e3%81%8c%e3%80%8c%e4%bb%8a%e3%80%8d%e3%81%aa%e7%90%86%e7%94%b1-%e2%94%80%e2%94%802030%e5%b9%b4%e3%80%8c79%e4%b8%87\/","title":{"rendered":"Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u8ee2\u8077\u304c\u300c\u4eca\u300d\u306a\u7406\u7531 \u2500\u25002030\u5e74\u300c79\u4e07\u4eba\u4e0d\u8db3\u300d\u6642\u4ee3\u306b\u3001\u3042\u306a\u305f\u306eJava\u7d4c\u9a13\u304c\u6b66\u5668\u306b\u306a\u308b"},"content":{"rendered":"\n<p class=\"lassic-supervisor-line\" style=\"margin:0 0 28px;font-size:13px;color:#6B7178;\">\u76e3\u4fee\u30fb\u7de8\u96c6\u8cac\u4efb\u8005\uff1a\u725b\u5c3e \u662d\u660c\uff08\u682a\u5f0f\u4f1a\u793eLASSIC \u57f7\u884c\u5f79\u54e1\uff09<\/p>\n\n\n<!-- \u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\uff08group\u306e\u5916\uff09 -->\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/relasic.jp\/contents\/assets\/2026\/04\/img-14.jpg\" alt=\"Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u8ee2\u8077\u304c\u4eca\u306a\u7406\u7531 2030\u5e7479\u4e07\u4eba\u4e0d\u8db3\u6642\u4ee3\u306bJava\u7d4c\u9a13\u304c\u6b66\u5668\u306b\u306a\u308b\" class=\"wp-image-xxxx\" style=\"width:730px\"\/><\/figure>\n<\/div>\n\n<!-- \u672c\u6587\u30b0\u30eb\u30fc\u30d7 -->\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n\n<!-- \u30ea\u30fc\u30c9\u65871 -->\n\n<p class=\"wp-block-paragraph\">\u300cJava\u306f\u66f8\u3051\u308b\u3051\u3069\u3001\u6b21\u306b\u4f55\u3092\u5b66\u3079\u3070\u3044\u3044\u306e\u304b\u5206\u304b\u3089\u306a\u3044\u300d\u2500\u2500\u305d\u3093\u306a\u60a9\u307f\u3092\u62b1\u3048\u3066\u3044\u307e\u305b\u3093\u304b\u3002\u7d4c\u6e08\u7523\u696d\u7701\u306e\u8a66\u7b97\u3067\u306f\u30012030\u5e74\u306bIT\u4eba\u6750\u304c\u6700\u5927\u7d0479\u4e07\u4eba\u4e0d\u8db3\u3059\u308b\u3068\u4e88\u6e2c\u3055\u308c\u3066\u3044\u307e\u3059*1\u3002<\/p>\n\n\n<!-- \u30ea\u30fc\u30c9\u65872 -->\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u4e00\u65b9\u3067\u3001Google\u304c2019\u5e74\u306bAndroid\u958b\u767a\u306e\u63a8\u5968\u8a00\u8a9e\u3068\u3057\u3066\u300cKotlin-first\u300d\u3092\u5ba3\u8a00\u3057\u3066\u4ee5\u964d\u3001<mark style=\"background-color:#fcf100\" class=\"has-inline-color\">Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u6c42\u4eba\u306f\u7740\u5b9f\u306b\u62e1\u5927<\/mark>\u3092\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002Kotlin\u306f\u3001Java\u3068\u306e\u9ad8\u3044\u76f8\u4e92\u904b\u7528\u6027\u3092\u5099\u3048\u306a\u304c\u3089\u3001\u30b3\u30fc\u30c9\u91cf\u3092\u7d0440%\u524a\u6e1b\u3067\u304d\u308b\u30e2\u30c0\u30f3\u306a\u8a00\u8a9e\u3067\u3059\u3002\u3064\u307e\u308a\u3001Java\u7d4c\u9a13\u8005\u306b\u3068\u3063\u3066\u306f\u65e2\u5b58\u306e\u30b9\u30ad\u30eb\u8cc7\u7523\u3092\u305d\u306e\u307e\u307e\u6d3b\u304b\u305b\u308b\u300c\u96a3\u306e\u8a00\u8a9e\u300d\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n\n\n<!-- \u30ea\u30fc\u30c9\u65873 -->\n\n<p class=\"wp-block-paragraph\">\u672c\u8a18\u4e8b\u3067\u306f\u3001Kotlin\u306e\u6280\u8853\u7684\u7279\u5fb4\u304b\u3089\u8ee2\u8077\u5e02\u5834\u306e\u6700\u65b0\u52d5\u5411\u3001\u5e74\u53ce\u30c7\u30fc\u30bf\u3001\u305d\u3057\u3066\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u5bfe\u5fdc\u306e\u6c42\u4eba\u4e8b\u60c5\u307e\u3067\u3001Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u3057\u3066\u306e\u30ad\u30e3\u30ea\u30a2\u3092\u8003\u3048\u308b\u3046\u3048\u3067\u5fc5\u8981\u306a\u60c5\u5831\u3092\u7db2\u7f85\u7684\u306b\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002<\/p>\n\n\n<!-- \u3053\u306e\u8a18\u4e8b\u306e\u30dd\u30a4\u30f3\u30c8 -->\n\n<p class=\"has-white-background-color has-background wp-block-paragraph\"><strong>\u3010\u3053\u306e\u8a18\u4e8b\u306e\u30dd\u30a4\u30f3\u30c8\u3011<\/strong><br>\u25cf Kotlin\u306f2024\u5e74\u306b\u30d0\u30fc\u30b8\u30e7\u30f32.0\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u3001Android\u3060\u3051\u3067\u306a\u304f\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u3084\u30de\u30eb\u30c1\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u9818\u57df\u3067\u3082\u63a1\u7528\u304c\u9032\u3093\u3067\u3044\u307e\u3059<br>\u25cf \u6b63\u793e\u54e1\u306eKotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u5e73\u5747\u5e74\u53ce\u306f\u7d04577\u4e07\u5186\u3001\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u5bfe\u5fdc\u7387\u304c\u9ad8\u304f\u3001\u50cd\u304d\u65b9\u306e\u9078\u629e\u80a2\u304c\u5e83\u3044\u8a00\u8a9e\u3067\u3059<br>\u25cf Java\u7d4c\u9a13\u304c\u3042\u308c\u3070\u5b66\u7fd2\u30b3\u30b9\u30c8\u3092\u6291\u3048\u3066\u79fb\u884c\u3067\u304d\u3001IT\u4eba\u6750\u4e0d\u8db3\u304c\u6df1\u523b\u5316\u3059\u308b\u4e2d\u3067\u30ad\u30e3\u30ea\u30a2\u306e\u9078\u629e\u80a2\u304c\u5e83\u304c\u308a\u307e\u3059<\/p>\n\n\n<!-- CV\u753b\u50cf\uff08\u30ea\u30f3\u30af\u4ed8\u304d\u30fb500px\uff09\u30ea\u30fc\u30c9\u6587\u5f8c -->\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/relasic.jp\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img decoding=\"async\" src=\"https:\/\/relasic.jp\/contents\/assets\/2026\/04\/img_cv.png\" alt=\"\u30ea\u30e9\u30b7\u30af \u4f1a\u54e1\u767b\u9332\u306f\u3053\u3061\u3089\" class=\"wp-image-xxxx\" style=\"width:500px\"\/><\/a><\/figure>\n<\/div>\n\n<!-- \u76ee\u6b21\u30bf\u30a4\u30c8\u30eb\uff08\u67a0\u5916\u30fb\u592a\u5b57\uff09 -->\n\n<p class=\"wp-block-paragraph\" style=\"font-weight:700\">\u76ee\u6b21<\/p>\n\n\n<!-- \u76ee\u6b21\u30dc\u30c3\u30af\u30b9\uff08\u67a0\u7dda\u3042\u308a\uff09 -->\n\n<div class=\"wp-block-group has-border-color has-white-background-color has-background\" style=\"border-color:#1a365d;border-width:1px;border-radius:0px;padding-top:24px;padding-right:28px;padding-bottom:24px;padding-left:28px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-bba1aa89 wp-block-group-is-layout-constrained\">\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:0px;margin-bottom:8px\"><a href=\"#section1\">1. \u3010\u30b5\u30de\u30ea\u30fc\u3011Kotlin\u8ee2\u8077\u3067\u62bc\u3055\u3048\u308b\u3079\u304d5\u3064\u306e\u30dd\u30a4\u30f3\u30c8<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:8px;margin-bottom:8px\"><a href=\"#section2\">2. Kotlin\u3068\u306f\u4f55\u304b\u2500\u2500Java\u306e\u300c\u6b21\u300d\u3092\u62c5\u3046\u30e2\u30c0\u30f3\u8a00\u8a9e<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:8px;margin-bottom:8px\"><a href=\"#section3\">3. Kotlin\u8ee2\u8077\u5e02\u5834\u306e\u6700\u65b0\u52d5\u5411\u2500\u2500\u6c42\u4eba\u6570\u30fb\u5e74\u53ce\u30fb\u6c42\u3081\u3089\u308c\u308b\u30b9\u30ad\u30eb<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:4px;margin-bottom:4px;font-size:14px\">\u3000\u3000<a href=\"#section3-1\">3-1. \u6c42\u4eba\u6570\u306e\u63a8\u79fb\u3068\u7279\u5fb4<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:4px;margin-bottom:4px;font-size:14px\">\u3000\u3000<a href=\"#section3-2\">3-2. \u5e74\u53ce\u30c7\u30fc\u30bf<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:4px;margin-bottom:4px;font-size:14px\">\u3000\u3000<a href=\"#section3-3\">3-3. \u6c42\u3081\u3089\u308c\u308b\u30b9\u30ad\u30eb\u30bb\u30c3\u30c8<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:8px;margin-bottom:8px\"><a href=\"#section4\">4. 2030\u5e74\u300c\u6700\u592779\u4e07\u4eba\u4e0d\u8db3\u300d\u2500\u2500IT\u4eba\u6750\u4e0d\u8db3\u3068Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5e0c\u5c11\u4fa1\u5024<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:8px;margin-bottom:8px\"><a href=\"#section5\">5. Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u2500\u2500\u5834\u6240\u306b\u7e1b\u3089\u308c\u306a\u3044\u50cd\u304d\u65b9\u306e\u5b9f\u614b<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:8px;margin-bottom:8px\"><a href=\"#section6\">6. Java\u7d4c\u9a13\u8005\u304cKotlin\u3078\u79fb\u884c\u3059\u308b\u305f\u3081\u306e\u5177\u4f53\u7684\u30b9\u30c6\u30c3\u30d7<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:8px;margin-bottom:0px\"><a href=\"#section7\">7. \u307e\u3068\u3081<\/a><\/p>\n\n\n<\/div><\/div>\n\n\n<!-- \u30bb\u30af\u30b7\u30e7\u30f31\uff1a\u30b5\u30de\u30ea\u30fc -->\n\n<h2 id=\"section1\" class=\"wp-block-heading\">1. \u3010\u30b5\u30de\u30ea\u30fc\u3011Kotlin\u8ee2\u8077\u3067\u62bc\u3055\u3048\u308b\u3079\u304d5\u3064\u306e\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kotlin\u306f2011\u5e74\u306bJetBrains\u793e\u304c\u958b\u767a\u3057\u30012017\u5e74\u306bGoogle\u304cAndroid\u516c\u5f0f\u8a00\u8a9e\u3068\u3057\u3066\u63a1\u7528\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u3059\u30022024\u5e745\u6708\u306b\u306f\u30d0\u30fc\u30b8\u30e7\u30f32.0\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u3001K2\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u6b63\u5f0f\u5c0e\u5165\u306b\u3088\u308a\u958b\u767a\u52b9\u7387\u304c\u3055\u3089\u306b\u5411\u4e0a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u793e\u54e1\u306e\u5e73\u5747\u5e74\u53ce\u306f\u7d04577\u4e07\u5186\u3067\u3001\u7d4c\u9a13\u3084\u30b9\u30ad\u30eb\u306b\u3088\u3063\u3066\u306f1,000\u4e07\u5186\u3092\u8d85\u3048\u308b\u6c42\u4eba\u3082\u3042\u308a\u307e\u3059\u3002\u7d4c\u6e08\u7523\u696d\u7701\u306e\u8abf\u67fb\u306b\u3088\u308b\u30682030\u5e74\u307e\u3067\u306b\u6700\u5927\u7d0479\u4e07\u4eba\u306eIT\u4eba\u6750\u304c\u4e0d\u8db3\u3059\u308b\u898b\u8fbc\u307f\u3067\u3042\u308a\u3001Kotlin\u306e\u3088\u3046\u306a\u30e2\u30c0\u30f3\u8a00\u8a9e\u3092\u6271\u3048\u308b\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5e0c\u5c11\u6027\u306f\u4eca\u5f8c\u3055\u3089\u306b\u9ad8\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IT\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u7d048\u5272\u304c\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u7d99\u7d9a\u3092\u5e0c\u671b\u3057\u3066\u304a\u308a\u3001Kotlin\u6c42\u4eba\u306f\u30ea\u30e2\u30fc\u30c8\u5bfe\u5fdc\u7387\u304c\u9ad8\u3044\u3053\u3068\u3082\u8ee2\u8077\u5148\u3068\u3057\u3066\u6ce8\u76ee\u3055\u308c\u308b\u7406\u7531\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n\n\n<!-- \u30bb\u30af\u30b7\u30e7\u30f32\uff1aKotlin\u3068\u306f\u4f55\u304b -->\n\n<h2 id=\"section2\" class=\"wp-block-heading\">2. Kotlin\u3068\u306f\u4f55\u304b\u2500\u2500Java\u306e\u300c\u6b21\u300d\u3092\u62c5\u3046\u30e2\u30c0\u30f3\u8a00\u8a9e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kotlin\u306f\u3001\u30c1\u30a7\u30b3\u5171\u548c\u56fd\u30d7\u30e9\u30cf\u306b\u672c\u793e\u3092\u7f6e\u304f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u4f01\u696dJetBrains\u793e\u304c\u958b\u767a\u3057\u30012011\u5e74\u306b\u767a\u8868\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u3059\u3002\u30ed\u30b7\u30a2\u30fb\u30b5\u30f3\u30af\u30c8\u30da\u30c6\u30eb\u30d6\u30eb\u30af\u306e\u7814\u7a76\u6240\u3067\u8a95\u751f\u3057\u3001Java\u4eee\u60f3\u30de\u30b7\u30f3\uff08JVM\uff09\u4e0a\u3067\u52d5\u4f5c\u3059\u308b\u9759\u7684\u578b\u4ed8\u3051\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u8a00\u8a9e\u3068\u3057\u3066\u3001Java\u3068\u306e\u9ad8\u3044\u76f8\u4e92\u904b\u7528\u6027\u3092\u6301\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2017\u5e74\u306bGoogle\u304cKotlin\u3092Android\u30a2\u30d7\u30ea\u958b\u767a\u306e\u516c\u5f0f\u8a00\u8a9e\u3068\u3057\u3066\u63a1\u7528\u3057\u30012019\u5e74\u306b\u306f\u300cKotlin-first\u300d\u3092\u5ba3\u8a00\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u4ee5\u964d\u3001Android\u30a2\u30d7\u30ea\u958b\u767a\u306e\u73fe\u5834\u3067\u306fKotlin\u304c\u4e8b\u5b9f\u4e0a\u306e\u6a19\u6e96\u8a00\u8a9e\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<!-- \u672c\u6587\u5185\u753b\u50cf -->\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/relasic.jp\/contents\/assets\/2026\/04\/img-8.jpg\" alt=\"Java\u304b\u3089Kotlin\u3078\u306e\u79fb\u884c\u30a4\u30e1\u30fc\u30b8\" class=\"wp-image-xxxx\" style=\"object-fit:cover;width:750px;height:420px\"\/><\/figure>\n<\/div>\n\n<!-- Kotlin\u306e\u6280\u8853\u7684\u7279\u5fb4 \u30c6\u30fc\u30d6\u30eb -->\n\n<p class=\"wp-block-paragraph\"><strong>Kotlin\u306e\u6280\u8853\u7684\u7279\u5fb4<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-white-background-color has-background has-fixed-layout\"><tbody>\n<tr><td><strong>\u7279\u5fb4<\/strong><\/td><td><strong>\u5185\u5bb9<\/strong><\/td><\/tr>\n<tr><td>\u7c21\u6f54\u6027<\/td><td>Java\u3068\u6bd4\u3079\u3066\u30b3\u30fc\u30c9\u91cf\u3092\u7d0440%\u524a\u6e1b\u53ef\u80fd\uff08JetBrains\u793e\u306e\u767a\u8868\u306b\u3088\u308b\uff09\u3002\u30bb\u30df\u30b3\u30ed\u30f3\u4e0d\u8981\u3001\u578b\u63a8\u8ad6\u306a\u3069\u8a18\u8ff0\u304c\u30b7\u30f3\u30d7\u30eb<\/td><\/tr>\n<tr><td>Null Safety<\/td><td>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306bnull\u53c2\u7167\u306e\u53ef\u80fd\u6027\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001NullPointerException\u3092\u672a\u7136\u306b\u9632\u6b62<\/td><\/tr>\n<tr><td>Java\u4e92\u63db\u6027<\/td><td>Java\u30b3\u30fc\u30c9\u304b\u3089Kotlin\u3092\u547c\u3073\u51fa\u3059\u3001\u307e\u305f\u306f\u305d\u306e\u9006\u3082\u53ef\u80fd\u3002\u65e2\u5b58\u306eJava\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3078\u306e\u6bb5\u968e\u7684\u5c0e\u5165\u304c\u5bb9\u6613<\/td><\/tr>\n<tr><td>\u30de\u30eb\u30c1\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0<\/td><td>Kotlin Multiplatform\uff08KMP\uff09\u306b\u3088\u308a\u3001iOS\u30fbAndroid\u30fbWeb\u30fb\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u3067\u5171\u901a\u30ed\u30b8\u30c3\u30af\u3092\u5171\u6709\u53ef\u80fd<\/td><\/tr>\n<tr><td>\u30b3\u30eb\u30fc\u30c1\u30f3<\/td><td>\u69cb\u9020\u5316\u3055\u308c\u305f\u4e26\u884c\u51e6\u7406\u3092\u7c21\u6f54\u306b\u8a18\u8ff0\u3067\u304d\u3001\u975e\u540c\u671f\u51e6\u7406\u306e\u30b3\u30fc\u30c9\u304c\u8aad\u307f\u3084\u3059\u3044<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2024\u5e745\u6708\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305fKotlin 2.0\u3067\u306f\u3001K2\u30b3\u30f3\u30d1\u30a4\u30e9\u304c\u5b89\u5b9a\u7248\u3068\u3057\u3066\u6b63\u5f0f\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u901f\u5ea6\u306e\u5411\u4e0a\u3068\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6539\u5584\u304c\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002JetBrains\u793e\u306fKotlin\u306e\u516c\u5f0f\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u306b\u304a\u3044\u3066\u3001\u8a00\u8a9e\u306e\u9032\u5316\u3001\u30de\u30eb\u30c1\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u5bfe\u5fdc\u306e\u5f37\u5316\u3001\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u306e\u5145\u5b9f\u3092\u91cd\u70b9\u65b9\u91dd\u3068\u3057\u3066\u63b2\u3052\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u516c\u5f0f\u30b5\u30a4\u30c8\uff08<a href=\"https:\/\/kotlinlang.org\/\" target=\"_blank\" rel=\"noopener\">https:\/\/kotlinlang.org\/<\/a>\uff09\u3067\u306f\u3001\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3001\u30b3\u30fc\u30c9\u30b5\u30f3\u30d7\u30eb\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u304c\u5305\u62ec\u7684\u306b\u63d0\u4f9b\u3055\u308c\u3066\u304a\u308a\u3001\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9\u304c\u5145\u5b9f\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001Kotlin Koans\uff08<a href=\"https:\/\/play.kotlinlang.org\/koans\" target=\"_blank\" rel=\"noopener\">https:\/\/play.kotlinlang.org\/koans<\/a>\uff09\u3068\u3044\u3046\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u306a\u6f14\u7fd2\u74b0\u5883\u3082\u7121\u6599\u3067\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n<!-- \u30bb\u30af\u30b7\u30e7\u30f33\uff1aKotlin\u8ee2\u8077\u5e02\u5834\u306e\u6700\u65b0\u52d5\u5411 -->\n\n<h2 id=\"section3\" class=\"wp-block-heading\">3. Kotlin\u8ee2\u8077\u5e02\u5834\u306e\u6700\u65b0\u52d5\u5411\u2500\u2500\u6c42\u4eba\u6570\u30fb\u5e74\u53ce\u30fb\u6c42\u3081\u3089\u308c\u308b\u30b9\u30ad\u30eb<\/h2>\n\n\n<!-- \u30bb\u30af\u30b7\u30e7\u30f33-1 -->\n\n<h3 id=\"section3-1\" class=\"wp-block-heading\">3-1. \u6c42\u4eba\u6570\u306e\u63a8\u79fb\u3068\u7279\u5fb4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">2026\u5e74\u73fe\u5728\u3001Kotlin\u3092\u542b\u3080\u6c42\u4eba\u306f\u4e3b\u8981\u6c42\u4eba\u30b5\u30a4\u30c8\u3067\u6570\u5343\u4ef6\u898f\u6a21\u306b\u9054\u3057\u3066\u3044\u307e\u3059\u3002Kotlin\u306e\u6c42\u4eba\u306f\u300cAndroid\u30a8\u30f3\u30b8\u30cb\u30a2\u300d\u300c\u30e2\u30d0\u30a4\u30eb\u30a8\u30f3\u30b8\u30cb\u30a2\u300d\u3068\u3044\u3046\u8077\u7a2e\u533a\u5206\u306b\u542b\u307e\u308c\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u8a00\u8a9e\u5358\u4f53\u3067\u306e\u691c\u7d22\u3067\u306f\u5b9f\u614b\u3088\u308a\u5c11\u306a\u304f\u898b\u3048\u308b\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002\u5b9f\u969b\u306eAndroid\u30a8\u30f3\u30b8\u30cb\u30a2\u6c42\u4eba\u3067\u306f\u3001Kotlin\u30b9\u30ad\u30eb\u304c\u307b\u307c\u5fc5\u9808\u6761\u4ef6\u3068\u306a\u3063\u3066\u3044\u307e\u3059\uff08Relasic\u7de8\u96c6\u90e8\u8abf\u3079\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jetpack Compose\u306a\u3069Kotlin\u3092\u524d\u63d0\u3068\u3057\u305f\u65b0\u3057\u3044Android\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u666e\u53ca\u306b\u4f34\u3044\u3001Kotlin\u5bfe\u5fdc\u3092\u6c42\u3081\u308b\u30dd\u30b8\u30b7\u30e7\u30f3\u306f\u5897\u52a0\u50be\u5411\u306b\u3042\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u9818\u57df\u3067\u306fKtor\u3084Spring Boot\uff08Kotlin\u5bfe\u5fdc\uff09\u3092\u6d3b\u7528\u3057\u305f\u958b\u767a\u304c\u5e83\u304c\u3063\u3066\u304a\u308a\u3001Kotlin Multiplatform\uff08KMP\uff09\u306e\u666e\u53ca\u306b\u3088\u3063\u3066iOS\u3068Android\u306e\u5171\u901a\u30ed\u30b8\u30c3\u30af\u3092Kotlin\u3067\u8a18\u8ff0\u3059\u308b\u958b\u767a\u30b9\u30bf\u30a4\u30eb\u3082\u62e1\u5927\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<!-- \u30bb\u30af\u30b7\u30e7\u30f33-2 -->\n\n<h3 id=\"section3-2\" class=\"wp-block-heading\">3-2. \u5e74\u53ce\u30c7\u30fc\u30bf<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-white-background-color has-background has-fixed-layout\"><tbody>\n<tr><td><strong>\u533a\u5206<\/strong><\/td><td><strong>\u5e74\u53ce\u76ee\u5b89<\/strong><\/td><td><strong>\u51fa\u5178<\/strong><\/td><\/tr>\n<tr><td>\u6b63\u793e\u54e1\uff08\u5e73\u5747\uff09<\/td><td>\u7d04577\u4e07\u5186<\/td><td>\u30b9\u30bf\u30f3\u30d0\u30a4\u300c\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u5e74\u53ce\u30e9\u30f3\u30ad\u30f3\u30b0\u300d<\/td><\/tr>\n<tr><td>\u6b63\u793e\u54e1\uff08\u7d4c\u9a13\u8005\u5e2f\uff09<\/td><td>450\u4e07\u301c1,000\u4e07\u5186<\/td><td>Relasic\u7de8\u96c6\u90e8\u8abf\u3079\uff082025\u5e74\u6642\u70b9\uff09<\/td><\/tr>\n<tr><td>\u6b63\u793e\u54e1\u30fb\u30b7\u30cb\u30a2\u5c64<\/td><td>800\u4e07\u301c1,200\u4e07\u5186\u8d85<\/td><td>Relasic\u7de8\u96c6\u90e8\u8abf\u3079\uff082025\u5e74\u6642\u70b9\uff09<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5e74\u53ce\u306f\u3001\u7d4c\u9a13\u5e74\u6570\u3084\u62c5\u5f53\u9818\u57df\u306b\u3088\u3063\u3066\u5e45\u304c\u3042\u308a\u307e\u3059\u3002Android\u30a2\u30d7\u30ea\u958b\u767a\u306e\u307f\u306e\u7d4c\u9a13\u3067\u3042\u308c\u3070450\u4e07\u301c700\u4e07\u5186\u7a0b\u5ea6\u304c\u76f8\u5834\u3067\u3059\u304c\u3001\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u3084KMP\u5bfe\u5fdc\u306e\u7d4c\u9a13\u3092\u6301\u3064\u30a8\u30f3\u30b8\u30cb\u30a2\u306f800\u4e07\u5186\u4ee5\u4e0a\u306e\u6c42\u4eba\u306b\u3082\u624b\u304c\u5c4a\u304d\u307e\u3059\u3002<\/p>\n\n\n<!-- \u30bb\u30af\u30b7\u30e7\u30f33-3 -->\n\n<h3 id=\"section3-3\" class=\"wp-block-heading\">3-3. \u6c42\u3081\u3089\u308c\u308b\u30b9\u30ad\u30eb\u30bb\u30c3\u30c8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kotlin\u6c42\u4eba\u3067\u983b\u51fa\u3059\u308b\u30b9\u30ad\u30eb\u8981\u4ef6\u3092\u6574\u7406\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e3\u968e\u5c64\u306b\u5206\u985e\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-white-background-color has-background has-fixed-layout\"><tbody>\n<tr><td><strong>\u30ec\u30d9\u30eb<\/strong><\/td><td><strong>\u30b9\u30ad\u30eb<\/strong><\/td><td><strong>\u5e74\u53ce\u76ee\u5b89<\/strong><\/td><\/tr>\n<tr><td>\u5fc5\u9808<\/td><td>Kotlin\u57fa\u672c\u6587\u6cd5\u3001Android\u30a2\u30d7\u30ea\u958b\u767a\u7d4c\u9a13\uff081\u5e74\u4ee5\u4e0a\uff09\u3001Git<\/td><td>450\u4e07\u301c600\u4e07\u5186<\/td><\/tr>\n<tr><td>\u6b53\u8fce<\/td><td>Jetpack Compose\u3001MVVM\/MVI\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3001CI\/CD\u69cb\u7bc9<\/td><td>600\u4e07\u301c800\u4e07\u5186<\/td><\/tr>\n<tr><td>\u512a\u9047<\/td><td>KMP\u3001\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9Kotlin\uff08Ktor\/Spring Boot\uff09\u3001\u30c1\u30fc\u30e0\u30ea\u30fc\u30c9\u7d4c\u9a13<\/td><td>800\u4e07\u301c1,200\u4e07\u5186\u8d85<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n\n<!-- \u30bb\u30af\u30b7\u30e7\u30f34\uff1aIT\u4eba\u6750\u4e0d\u8db3 -->\n\n<h2 id=\"section4\" class=\"wp-block-heading\">4. 2030\u5e74\u300c\u6700\u592779\u4e07\u4eba\u4e0d\u8db3\u300d\u2500\u2500IT\u4eba\u6750\u4e0d\u8db3\u3068Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5e0c\u5c11\u4fa1\u5024<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7d4c\u6e08\u7523\u696d\u7701\u304c2019\u5e74\u306b\u516c\u8868\u3057\u305f\u300cIT\u4eba\u6750\u9700\u7d66\u306b\u95a2\u3059\u308b\u8abf\u67fb\u300d\u306b\u3088\u308b\u3068\u3001IT\u9700\u8981\u306e\u9ad8\u4f4d\u30b7\u30ca\u30ea\u30aa\u3067\u306f2030\u5e74\u306b\u6700\u5927\u7d0479\u4e07\u4eba\u306eIT\u4eba\u6750\u304c\u4e0d\u8db3\u3059\u308b\u3068\u8a66\u7b97\u3055\u308c\u3066\u3044\u307e\u3059*1\u3002\u3053\u306e\u8a66\u7b97\u306fIT\u9700\u8981\u306e\u4f38\u3073\u7387\u3068\u52b4\u50cd\u751f\u7523\u6027\u306e\u4e0a\u6607\u7387\u3092\u5909\u6570\u3068\u3057\u3066\u8a2d\u5b9a\u3057\u3066\u304a\u308a\u3001\u4e2d\u4f4d\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u7d0416\u4e07\u301c45\u4e07\u4eba\uff08\u52b4\u50cd\u751f\u7523\u6027\u306e\u524d\u63d0\u6761\u4ef6\u306b\u3088\u308a\u5909\u52d5\uff09\u306e\u4e0d\u8db3\u304c\u898b\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IPA\uff08\u72ec\u7acb\u884c\u653f\u6cd5\u4eba\u60c5\u5831\u51e6\u7406\u63a8\u9032\u6a5f\u69cb\uff09\u306e\u300c\u30c7\u30b8\u30bf\u30eb\u6642\u4ee3\u306e\u30b9\u30ad\u30eb\u5909\u9769\u7b49\u306b\u95a2\u3059\u308b\u8abf\u67fb\uff082024\u5e74\u5ea6\uff09\u300d\u3067\u306f\u3001DX\u63a8\u9032\u4eba\u6750\u306e\u91cf\u306b\u3064\u3044\u306658.5%\u306e\u4f01\u696d\u304c\u300c\u5927\u5e45\u306b\u4e0d\u8db3\u3057\u3066\u3044\u308b\u300d\u3068\u56de\u7b54\u3057\u3066\u3044\u307e\u3059*2\u3002\u7279\u306b\u5148\u7aefIT\u4eba\u6750\uff08AI\u30fbIoT\u30fb\u30d3\u30c3\u30b0\u30c7\u30fc\u30bf\u30fb\u30af\u30e9\u30a6\u30c9\u9818\u57df\uff09\u306e\u4e0d\u8db3\u306f\u6df1\u523b\u3067\u3001\u5f93\u6765\u578bIT\u4eba\u6750\u3068\u306f\u5bfe\u7167\u7684\u306b\u9700\u7d66\u30ae\u30e3\u30c3\u30d7\u306e\u62e1\u5927\u304c\u4e88\u6e2c\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3046\u3057\u305f\u69cb\u9020\u7684\u306a\u4eba\u6750\u4e0d\u8db3\u306e\u4e2d\u3067\u3001Kotlin\u306e\u3088\u3046\u306a\u30e2\u30c0\u30f3\u8a00\u8a9e\u3092\u6271\u3048\u308b\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5e0c\u5c11\u6027\u306f\u9ad8\u307e\u3063\u3066\u3044\u307e\u3059\u3002TIOBE Index\u306e\u8a00\u8a9e\u4eba\u6c17\u30e9\u30f3\u30ad\u30f3\u30b0\u3067\u306f\u3001Kotlin\u306f2024\u5e747\u6708\u6642\u70b9\u306720\u4f4d\u306b\u30e9\u30f3\u30af\u30a4\u30f3\u3057\u3001\u524d\u5e74\u306e26\u4f4d\u304b\u3089\u4e0a\u6607\u3057\u3066\u3044\u307e\u3059*3\u3002Kotlin\u306f\u8a00\u8a9e\u3068\u3057\u3066\u6210\u9577\u6bb5\u968e\u306b\u3042\u308a\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u4f9b\u7d66\u304c\u307e\u3060\u9650\u3089\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u30b9\u30ad\u30eb\u3092\u6301\u3064\u4eba\u6750\u306b\u3068\u3063\u3066\u306f\u6709\u5229\u306a\u8ee2\u8077\u74b0\u5883\u304c\u7d9a\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5e02\u5834\u4fa1\u5024\u304c\u9ad8\u30443\u3064\u306e\u7406\u7531<\/strong><\/p>\n\n\n\n<p class=\"has-white-background-color has-background wp-block-paragraph\">\u25cf <strong>Java\u304b\u3089\u306e\u79fb\u884c\u9700\u8981<\/strong>\uff1a\u65e2\u5b58\u306eJava\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092Kotlin\u3078\u6bb5\u968e\u7684\u306b\u79fb\u884c\u3059\u308b\u4f01\u696d\u304c\u5897\u52a0\u3057\u3066\u304a\u308a\u3001\u4e21\u8a00\u8a9e\u3092\u6271\u3048\u308b\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u91cd\u5b9d\u3055\u308c\u307e\u3059<br>\u25cf <strong>\u5bfe\u5fdc\u9818\u57df\u306e\u5e83\u3055<\/strong>\uff1aAndroid\u958b\u767a\u3060\u3051\u3067\u306a\u304f\u3001\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u3001KMP\u306b\u3088\u308b\u30af\u30ed\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u958b\u767a\u306b\u3082\u5bfe\u5fdc\u3067\u304d\u3001\u30ad\u30e3\u30ea\u30a2\u306e\u5e45\u304c\u5e83\u304c\u308a\u307e\u3059<br>\u25cf <strong>Google\u3068JetBrains\u306e\u7d99\u7d9a\u7684\u6295\u8cc7<\/strong>\uff1aKotlin\u8ca1\u56e3\u306b\u3088\u308b\u8a00\u8a9e\u958b\u767a\u306e\u63a8\u9032\u3001JetBrains\u306b\u3088\u308bAI\u30cd\u30a4\u30c6\u30a3\u30d6\u30c4\u30fc\u30ea\u30f3\u30b0\u3078\u306e\u6295\u8cc7\u306a\u3069\u3001\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u306e\u6210\u9577\u304c\u7d9a\u3044\u3066\u3044\u307e\u3059<\/p>\n\n\n<!-- \u30bb\u30af\u30b7\u30e7\u30f35\uff1a\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af -->\n\n<h2 id=\"section5\" class=\"wp-block-heading\">5. Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u2500\u2500\u5834\u6240\u306b\u7e1b\u3089\u308c\u306a\u3044\u50cd\u304d\u65b9\u306e\u5b9f\u614b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d1\u30fc\u30bd\u30eb\u7dcf\u5408\u7814\u7a76\u6240\u306e\u300c\u7b2c\u5341\u56de\u30fb\u30c6\u30ec\u30ef\u30fc\u30af\u306b\u95a2\u3059\u308b\u8abf\u67fb\u300d\uff082025\u5e747\u6708\u5b9f\u65bd\uff09\u306b\u3088\u308b\u3068\u3001\u6b63\u793e\u54e1\u306e\u30c6\u30ec\u30ef\u30fc\u30af\u5b9f\u65bd\u7387\u306f22.5%\u3067\u30012023\u5e74\u4ee5\u964d\u306f\u5b89\u5b9a\u7684\u306a\u5b9a\u7740\u50be\u5411\u3092\u793a\u3057\u3066\u3044\u307e\u3059*4\u3002\u4e00\u65b9\u3001IT\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u9650\u5b9a\u3059\u308b\u3068\u3001\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u306e\u5b9f\u65bd\u7387\u306f\u3053\u306e\u5168\u4f53\u5e73\u5747\u3092\u5927\u304d\u304f\u4e0a\u56de\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c6\u30ec\u30ea\u30e2\u7dcf\u7814\uff08\u682a\u5f0f\u4f1a\u793eLASSIC\u904b\u55b6\uff09\u304c\u5b9f\u65bd\u3057\u305f\u8abf\u67fb\u3067\u306f\u3001\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u7d4c\u9a13\u8005\u306e\u7d048\u5272\u304c\u4eca\u5f8c\u3082\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u306e\u7d99\u7d9a\u3092\u5e0c\u671b\u3057\u3066\u3044\u307e\u3059*5\u3002\u307e\u305f\u30012025\u5e747\u6708\u306e\u8abf\u67fb\u3067\u306f\u3001IT\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u7d047\u5272\u304c\u300c\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u304c\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u300d\u3092\u50cd\u304f\u3046\u3048\u3067\u306e\u91cd\u8981\u306a\u6761\u4ef6\u3068\u56de\u7b54\u3057\u3066\u3044\u307e\u3059*6\u3002\u51fa\u793e\u56de\u5e30\u306e\u65b9\u91dd\u304c\u6253\u3061\u51fa\u3055\u308c\u305f\u5834\u5408\u300143.7%\u304c\u300c\u540c\u3058\u8077\u7a2e\u3067\u306e\u8ee2\u8077\u3092\u8003\u3048\u308b\u304d\u3063\u304b\u3051\u306b\u306a\u308b\u300d\u3068\u56de\u7b54\u3057\u3066\u304a\u308a\u3001<mark style=\"background-color:#fcf100\" class=\"has-inline-color\">\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u306e\u53ef\u5426\u304c\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u8ee2\u8077\u610f\u5411\u306b\u76f4\u7d50\u3057\u3066\u3044\u308b<\/mark>\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kotlin\u958b\u767a\u306f\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3001\u30c6\u30b9\u30c8\u3001\u30c7\u30d7\u30ed\u30a4\u3068\u3044\u3063\u305f\u5de5\u7a0b\u306e\u307b\u307c\u3059\u3079\u3066\u3092\u30aa\u30f3\u30e9\u30a4\u30f3\u3067\u5b8c\u7d50\u3067\u304d\u308b\u305f\u3081\u3001\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u3068\u306e\u89aa\u548c\u6027\u304c\u9ad8\u3044\u8077\u7a2e\u3067\u3059\u3002Android Studio\u3084IntelliJ IDEA\u3068\u3044\u3063\u305fJetBrains\u88fd\u306e\u958b\u767a\u74b0\u5883\u306f\u30ed\u30fc\u30ab\u30ebPC\u3067\u52d5\u4f5c\u3057\u3001Git\u306b\u3088\u308b\u30d0\u30fc\u30b8\u30e7\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3068CI\/CD\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30c1\u30fc\u30e0\u958b\u767a\u3082\u9060\u9694\u3067\u9032\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-white-background-color has-background has-fixed-layout\"><tbody>\n<tr><td><strong>\u50cd\u304d\u65b9<\/strong><\/td><td><strong>Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u50be\u5411<\/strong><\/td><td><strong>\u5099\u8003<\/strong><\/td><\/tr>\n<tr><td>\u30d5\u30eb\u30ea\u30e2\u30fc\u30c8<\/td><td>\u81ea\u793e\u958b\u767a\u4f01\u696d\u3084\u30b9\u30bf\u30fc\u30c8\u30a2\u30c3\u30d7\u3067\u591a\u3044<\/td><td>\u5730\u65b9\u5728\u4f4f\u3067\u3082\u5fdc\u52df\u53ef\u80fd\u306a\u6c42\u4eba\u304c\u5897\u52a0<\/td><\/tr>\n<tr><td>\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\uff08\u90311\u301c3\u51fa\u793e\uff09<\/td><td>\u5927\u624b\u4f01\u696d\u30fbSIer\u3067\u4e3b\u6d41<\/td><td>\u30c1\u30fc\u30e0\u30d3\u30eb\u30c7\u30a3\u30f3\u30b0\u76ee\u7684\u306e\u51fa\u793e\u304c\u4e2d\u5fc3<\/td><\/tr>\n<tr><td>\u30d5\u30eb\u51fa\u793e<\/td><td>\u53d7\u8a17\u958b\u767a\u30fb\u5e38\u99d0\u578b\u3067\u4e00\u90e8\u3042\u308a<\/td><td>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8981\u4ef6\u304c\u53b3\u3057\u3044\u6848\u4ef6\u306b\u9650\u5b9a<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n\n<!-- \u30bb\u30af\u30b7\u30e7\u30f36\uff1aJava\u7d4c\u9a13\u8005\u306e\u79fb\u884c\u30b9\u30c6\u30c3\u30d7 -->\n\n<h2 id=\"section6\" class=\"wp-block-heading\">6. Java\u7d4c\u9a13\u8005\u304cKotlin\u3078\u79fb\u884c\u3059\u308b\u305f\u3081\u306e\u5177\u4f53\u7684\u30b9\u30c6\u30c3\u30d7<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kotlin\u306fJava\u3092\u30d9\u30fc\u30b9\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001Java\u7d4c\u9a13\u8005\u306b\u3068\u3063\u3066\u306f\u7fd2\u5f97\u306e\u969c\u58c1\u304c\u4f4e\u3044\u8a00\u8a9e\u3067\u3059\u3002JetBrains\u793e\u306e\u767a\u8868\u306b\u3088\u308b\u3068\u3001\u540c\u3058\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u5834\u5408\u306bKotlin\u306fJava\u306e\u7d0440%\u306e\u30b3\u30fc\u30c9\u91cf\u3067\u8a18\u8ff0\u53ef\u80fd\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d71\uff1a\u57fa\u790e\u6587\u6cd5\u306e\u7fd2\u5f97\uff08\u76ee\u5b89\uff1a2\u301c4\u9031\u9593\uff09<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kotlin\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\uff08<a href=\"https:\/\/kotlinlang.org\/docs\/home.html\" target=\"_blank\" rel=\"noopener\">https:\/\/kotlinlang.org\/docs\/home.html<\/a>\uff09\u3068Kotlin Koans\uff08<a href=\"https:\/\/play.kotlinlang.org\/koans\" target=\"_blank\" rel=\"noopener\">https:\/\/play.kotlinlang.org\/koans<\/a>\uff09\u3092\u6d3b\u7528\u3057\u3066\u3001null\u5b89\u5168\u6027\u3001\u62e1\u5f35\u95a2\u6570\u3001\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u3001\u30b3\u30eb\u30fc\u30c1\u30f3\u3068\u3044\u3063\u305fKotlin\u56fa\u6709\u306e\u6a5f\u80fd\u3092\u5b66\u3073\u307e\u3059\u3002Java\u7d4c\u9a13\u8005\u3067\u3042\u308c\u3070\u3001\u57fa\u672c\u6587\u6cd5\u306f2\u301c4\u9031\u9593\u3067\u7fd2\u5f97\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d72\uff1aAndroid\u958b\u767a\u307e\u305f\u306f\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u958b\u767a\u306e\u5b9f\u8df5\uff08\u76ee\u5b89\uff1a1\u301c3\u30f6\u6708\uff09<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Android\u958b\u767a\u3067\u3042\u308c\u3070\u3001Google\u304c\u63d0\u4f9b\u3059\u308b\u516c\u5f0f\u30b3\u30fc\u30b9\uff08<a href=\"https:\/\/developer.android.com\/courses\" target=\"_blank\" rel=\"noopener\">https:\/\/developer.android.com\/courses<\/a>\uff09\u3067Jetpack Compose\u3068Kotlin\u3092\u7528\u3044\u305f\u5b9f\u8df5\u7684\u306a\u958b\u767a\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u3089\u308c\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u3067\u3042\u308c\u3070\u3001Ktor\u307e\u305f\u306fSpring Boot\uff08Kotlin\u5bfe\u5fdc\uff09\u3067API\u30b5\u30fc\u30d0\u30fc\u3092\u69cb\u7bc9\u3059\u308b\u7d4c\u9a13\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d73\uff1a\u30dd\u30fc\u30c8\u30d5\u30a9\u30ea\u30aa\u306e\u69cb\u7bc9\u3068\u8ee2\u8077\u6d3b\u52d5\uff08\u76ee\u5b89\uff1a1\u301c2\u30f6\u6708\uff09<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">GitHub\u306b\u500b\u4eba\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u516c\u958b\u3057\u3001Kotlin\u3067\u306e\u5b9f\u88c5\u529b\u3092\u53ef\u8996\u5316\u3057\u307e\u3059\u3002\u8ee2\u8077\u6d3b\u52d5\u3067\u306f\u3001Java\u7d4c\u9a13\u3068Kotlin\u30b9\u30ad\u30eb\u306e\u4e21\u65b9\u3092\u30a2\u30d4\u30fc\u30eb\u3067\u304d\u308b\u3053\u3068\u304c\u5f37\u307f\u306b\u306a\u308a\u307e\u3059\u3002\u65e2\u5b58\u306eJava\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092Kotlin\u3078\u90e8\u5206\u79fb\u884c\u3057\u305f\u7d4c\u9a13\u304c\u3042\u308c\u3070\u3001\u5b9f\u52d9\u3067\u306e\u5373\u6226\u529b\u3068\u3057\u3066\u8a55\u4fa1\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-white-background-color has-background has-fixed-layout\"><tbody>\n<tr><td><strong>\u30b9\u30c6\u30c3\u30d7<\/strong><\/td><td><strong>\u671f\u9593\u76ee\u5b89<\/strong><\/td><td><strong>\u4e3b\u306a\u5b66\u7fd2\u5185\u5bb9<\/strong><\/td><td><strong>\u6d3b\u7528\u30ea\u30bd\u30fc\u30b9<\/strong><\/td><\/tr>\n<tr><td>1. \u57fa\u790e\u6587\u6cd5<\/td><td>2\u301c4\u9031\u9593<\/td><td>null\u5b89\u5168\u6027\u3001\u62e1\u5f35\u95a2\u6570\u3001\u30b3\u30eb\u30fc\u30c1\u30f3<\/td><td>kotlinlang.org\u3001Kotlin Koans<\/td><\/tr>\n<tr><td>2. \u5b9f\u8df5\u958b\u767a<\/td><td>1\u301c3\u30f6\u6708<\/td><td>Jetpack Compose\u3001Ktor\u3001Spring Boot<\/td><td>Android\u516c\u5f0f\u30b3\u30fc\u30b9\u3001JetBrains Academy<\/td><\/tr>\n<tr><td>3. \u8ee2\u8077\u6e96\u5099<\/td><td>1\u301c2\u30f6\u6708<\/td><td>\u30dd\u30fc\u30c8\u30d5\u30a9\u30ea\u30aa\u4f5c\u6210\u3001\u6c42\u4eba\u5fdc\u52df<\/td><td>GitHub\u3001Relasic<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n\n<!-- \u30bb\u30af\u30b7\u30e7\u30f37\uff1a\u307e\u3068\u3081 -->\n\n<h2 id=\"section7\" class=\"wp-block-heading\">7. \u307e\u3068\u3081<\/h2>\n\n\n\n<p class=\"has-white-background-color has-background wp-block-paragraph\">Kotlin\u306f\u3001Java\u306e\u8cc7\u7523\u3092\u6d3b\u304b\u3057\u306a\u304c\u3089\u751f\u7523\u6027\u3068\u5b89\u5168\u6027\u3092\u9ad8\u3081\u3089\u308c\u308b\u30e2\u30c0\u30f3\u8a00\u8a9e\u3067\u3059\u30022024\u5e74\u306e\u30d0\u30fc\u30b8\u30e7\u30f32.0\u30ea\u30ea\u30fc\u30b9\u306b\u3088\u308a\u6280\u8853\u7684\u306a\u6210\u719f\u5ea6\u304c\u5897\u3057\u3001Android\u958b\u767a\u3060\u3051\u3067\u306a\u304f\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u3084\u30de\u30eb\u30c1\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u9818\u57df\u3067\u3082\u63a1\u7528\u304c\u62e1\u5927\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7d4c\u6e08\u7523\u696d\u7701\u306e\u8a66\u7b97\u306b\u3088\u308b2030\u5e74\u6700\u5927\u7d0479\u4e07\u4eba\u306eIT\u4eba\u6750\u4e0d\u8db3\u3068\u3044\u3046\u69cb\u9020\u7684\u306a\u80cc\u666f\u306b\u52a0\u3048\u3001\u5148\u7aefIT\u4eba\u6750\u3078\u306e\u9700\u8981\u30b7\u30d5\u30c8\u304c\u9032\u3080\u4e2d\u3067\u3001Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5e02\u5834\u4fa1\u5024\u306f\u4eca\u5f8c\u3055\u3089\u306b\u9ad8\u307e\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u6b63\u793e\u54e1\u306e\u5e73\u5747\u5e74\u53ce\u306f\u7d04577\u4e07\u5186\u3001\u7d4c\u9a13\u3084\u30b9\u30ad\u30eb\u306b\u3088\u3063\u3066\u306f1,000\u4e07\u5186\u8d85\u306e\u6c34\u6e96\u3082\u8996\u91ce\u306b\u5165\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001IT\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u7d047\u5272\u304c\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u3092\u91cd\u8981\u306a\u5c31\u52b4\u6761\u4ef6\u3068\u56de\u7b54\u3057\u3066\u3044\u308b\u73fe\u5728\u3001Kotlin\u958b\u767a\u306e\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u89aa\u548c\u6027\u306e\u9ad8\u3055\u306f\u3001\u8ee2\u8077\u5148\u9078\u3073\u306b\u304a\u3051\u308b\u5927\u304d\u306a\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Java\u7d4c\u9a13\u8005\u3067\u3042\u308c\u3070\u3001Kotlin\u3078\u306e\u79fb\u884c\u306f\u6570\u30f6\u6708\u306e\u30b9\u30ad\u30eb\u30a2\u30c3\u30d7\u3067\u5b9f\u73fe\u53ef\u80fd\u3067\u3059\u3002\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3084Kotlin Koans\u3001Google\u306e\u516c\u5f0f\u30b3\u30fc\u30b9\u306a\u3069\u3001\u7121\u6599\u3067\u5229\u7528\u3067\u304d\u308b\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9\u3082\u5145\u5b9f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:#fcf100\" class=\"has-inline-color\">2030\u5e74\u306b\u5411\u3051\u3066IT\u4eba\u6750\u306e\u4e89\u596a\u6226\u304c\u672c\u683c\u5316\u3059\u308b\u524d\u306b\u3001Kotlin\u3068\u3044\u3046\u30b9\u30ad\u30eb\u3092\u624b\u306b\u5165\u308c\u308b\u3053\u3068\u306f\u3001\u30ad\u30e3\u30ea\u30a2\u306e\u9078\u629e\u80a2\u3092\u5e83\u3052\u308b\u6709\u52b9\u306a\u4e00\u624b<\/mark>\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n\n\n<!-- CTA -->\n\n<p class=\"wp-block-paragraph\"><strong>Relasic\uff08\u30ea\u30e9\u30b7\u30af\uff09\u306b\u3064\u3044\u3066<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Relasic\uff08\u682a\u5f0f\u4f1a\u793eLASSIC\u904b\u55b6\uff09\u306f\u3001\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u5bfe\u5fdc\u306e\u6b63\u793e\u54e1\u6c42\u4eba\u306b\u7279\u5316\u3057\u305f\u8ee2\u8077\u652f\u63f4\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002Kotlin\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u306f\u3058\u3081\u3001IT\u30fbWeb\u9818\u57df\u306e\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u5bfe\u5fdc\u6c42\u4eba\u3092\u53d6\u308a\u63c3\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u81ea\u5206\u306eJava\u7d4c\u9a13\u306f\u3001Kotlin\u306e\u6c42\u4eba\u3067\u3069\u3046\u8a55\u4fa1\u3055\u308c\u308b\u306e\u3060\u308d\u3046\u300d\u2500\u2500\u305d\u3093\u306a\u7591\u554f\u3092\u304a\u6301\u3061\u3067\u3057\u305f\u3089\u3001\u307e\u305a\u306f\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u5bfe\u5fdc\u306e\u6c42\u4eba\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>\u25bc \u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u5bfe\u5fdc\u306e\u6c42\u4eba\u3092\u898b\u308b<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">\u30ad\u30e3\u30ea\u30a2\u76f8\u8ac7\u30fb\u6c42\u4eba\u7d39\u4ecb\u306f\u7121\u6599\u3067\u3054\u5229\u7528\u3044\u305f\u3060\u3051\u307e\u3059<\/p>\n\n\n<!-- CV\u753b\u50cf\uff08\u30ea\u30f3\u30af\u4ed8\u304d\u30fb450px\uff09\u8a18\u4e8b\u672b\u5c3e -->\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/relasic.jp\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img decoding=\"async\" src=\"https:\/\/relasic.jp\/contents\/assets\/2026\/04\/img_cv.png\" alt=\"\u30ea\u30e9\u30b7\u30af \u4f1a\u54e1\u767b\u9332\u306f\u3053\u3061\u3089\" class=\"wp-image-xxxx\" style=\"width:450px\"\/><\/a><\/figure>\n<\/div>\n\n<!-- \u51fa\u5178\u30bf\u30a4\u30c8\u30eb -->\n\n<aside class=\"lassic-credit-card\" style=\"margin:40px 0;padding:28px 24px;background:#F4F4F2;border-radius:8px;font-size:14px;line-height:1.8;color:#2C3338;\"><p style=\"margin:0 0 18px;line-height:1.5;\"><img src=\"https:\/\/lassic.co.jp\/wordpress\/wp-content\/uploads\/2026\/08\/%E7%9B%A3%E4%BF%AE%E8%80%85%EF%BC%88%E7%89%9B%E5%B0%BE%E3%81%95%E3%82%93%EF%BC%89%E3%83%97%E3%83%AD%E3%83%95%E3%82%A3%E3%83%BC%E3%83%AB%E7%94%BB%E5%83%8F.jpg\" alt=\"\u725b\u5c3e \u662d\u660c\" width=\"96\" height=\"96\" loading=\"lazy\" decoding=\"async\" style=\"width:96px;height:96px;border-radius:50%;object-fit:cover;object-position:50% 16%;background:#fff;float:left;margin:0 18px 0 0;\"><span style=\"display:block;font-size:12px;font-weight:bold;letter-spacing:.04em;color:#6B7178;padding-top:22px;\">\u25c6 \u76e3\u4fee\u30fb\u7de8\u96c6\u8cac\u4efb\u8005<\/span><span style=\"display:block;font-size:18px;font-weight:bold;color:#2C3338;margin-top:4px;\">\u725b\u5c3e \u662d\u660c<\/span><\/p><div style=\"clear:both;\"><\/div><p style=\"margin:0 0 24px;font-size:13.5px;line-height:1.9;\">\u682a\u5f0f\u4f1a\u793eLASSIC \u57f7\u884c\u5f79\u54e1 \u4e8b\u696d\u63a8\u9032\u672c\u90e8\u9577\u30022009\u5e74\u307e\u3067\u682a\u5f0f\u4f1a\u793e\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\uff08\u73fe\u30d1\u30fc\u30bd\u30eb\u30ad\u30e3\u30ea\u30a2\uff09\u3067\u8ee2\u8077\u30b5\u30a4\u30c8DODA\u306e\u7de8\u96c6\u9577\u3092\u7d048\u5e74\u9593\u52d9\u3081\u308b\u30022020\u5e74\u304b\u3089\u682a\u5f0f\u4f1a\u793eLASSIC\u306b\u3066\u30c6\u30ec\u30ea\u30e2\u7dcf\u7814\u3092\u958b\u8a2d\u3001Remogu\u30fb\u30ea\u30e9\u30b7\u30af\u306e\u30b5\u30a4\u30c8\u76e3\u4fee\u8005\u3092\u52d9\u3081\u308b\u3002<br>\u5c02\u9580\u9818\u57df\uff1a\u4eba\u6750\u30fb\u63a1\u7528\u9818\u57df\u306e\u7de8\u96c6\uff0f\u30e1\u30c7\u30a3\u30a2\u904b\u55b6\u3001\u8abf\u67fb\u30e1\u30c7\u30a3\u30a2\u306e\u76e3\u4fee\u3002<br><a href=\"https:\/\/teleremo.lassic.co.jp\/profile\/ushio\/\" target=\"_blank\" rel=\"noopener\" style=\"color:#2C3338;text-decoration:underline;\">\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u8a73\u7d30\uff08\u30c6\u30ec\u30ea\u30e2\u7dcf\u7814\uff09<\/a><\/p><p style=\"margin:0 0 8px;font-size:12px;font-weight:bold;letter-spacing:.04em;color:#6B7178;\">\u25c6 \u3053\u306e\u8a18\u4e8b\u306b\u3064\u3044\u3066<\/p><p style=\"margin:0 0 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