CINXE.COM

<!DOCTYPE html> <html lang="en" class=" page_restyled_v2"> <head> <title>Kotlin for Education</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-5P98');</script> <link rel="dns-prefetch" href="//fonts.googleapis.com"> <link rel="dns-prefetch" href="//fonts.gstatic.com"> <link rel="dns-prefetch" href="//resources.jetbrains.com"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="icon" type="image/svg+xml" href="/assets/images/favicon.svg?&v=8607ff59d5296c7642ecd72bd3daa79b"> <link rel="alternate icon" href="/assets/images/favicon.ico?&v=551939ffa02d7c28c0be13a9d2b33a74" /> <link rel="apple-touch-icon" href="/assets/images/apple-touch-icon.png?&v=65eea4012614e3c0f62e5f5689d7eee8"/> <link rel="apple-touch-icon" sizes="72x72" href="/assets/images/apple-touch-icon-72x72.png?&v=3500d5728534ae35584b6b53bff33aab"/> <link rel="apple-touch-icon" sizes="114x114" href="/assets/images/apple-touch-icon-114x114.png?&v=76cfa8bcf5814916963457a0850d1e26"/> <link rel="apple-touch-icon" sizes="144x144" href="/assets/images/apple-touch-icon-144x144.png?&v=73ddf35e504822ad0deb51e244d8fc9d"/> <meta property="og:title" content="Kotlin Programming Language"/> <meta property="og:type" content="website"/> <meta property="og:url" content="https://kotlinlang.org/education/"/> <meta property="og:image" content="https://kotlinlang.org/assets/images/open-graph/education.png"/> <meta property="og:description" content=""> <meta property="og:site_name" content="Kotlin"/> <meta name="twitter:card" content="summary_large_image"> <meta name="twitter:site" content="@kotlin"> <meta name="twitter:title" content="Kotlin Programming Language"> <meta name="twitter:description" content=""> <meta name="twitter:image:src" content="https://kotlinlang.org/assets/images/open-graph/education.png"> <link rel="stylesheet" href="/_assets/styles-v2.css?&v=218907acac160cb82db44dc6d178cd28"> <link rel="stylesheet" href="/_assets/shared.css"/> <link rel="stylesheet" href="/_assets/common.css?&v=4c1506eb9d0bb160025644697246620b"/> </head> <body class="page_js_no">  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-5P98" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>  <div class="global-layout"> <header class="ktl-header-module_header-menu_wh71L ktl-header-module_border_paN11" data-test="header"><div class="ktl-logo-large-module_container_35w4p rs-text-3 rs-text-3_hardness_average rs-text-3_theme_dark"><a class="ktl-logo-large-module_link_AOGas" href="https://kotlinlang.org" aria-label="Kotlin Home Page"><svg width="98" height="22" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M43.314 1.067h-4.031L30.5 10.422V1.098H27.27v20.273H30.5v-9.82l8.814 9.82h4.177l-9.397-10.484 9.22-9.82Z" fill="#fff"></path><path d="M54.303 7.186c-1.153-.66-2.45-.994-3.901-.994-1.478 0-2.803.33-3.973.994a7.042 7.042 0 0 0-2.735 2.758c-.65 1.179-.976 2.515-.976 4.01 0 1.494.325 2.835.972 4.01a6.967 6.967 0 0 0 2.716 2.758c1.166.659 2.486.993 3.964.993 1.46 0 2.766-.33 3.923-.993a6.941 6.941 0 0 0 2.694-2.759c.642-1.178.963-2.515.963-4.01 0-1.494-.32-2.83-.963-4.009a6.949 6.949 0 0 0-2.684-2.758Zm-.204 9.328c-.357.74-.859 1.314-1.505 1.73-.646.415-1.392.622-2.233.622-.85 0-1.604-.207-2.26-.623a4.184 4.184 0 0 1-1.528-1.73c-.361-.74-.542-1.589-.542-2.555 0-.966.185-1.815.551-2.555a4.177 4.177 0 0 1 1.537-1.73c.656-.415 1.415-.623 2.278-.623.832 0 1.573.208 2.22.623a4.125 4.125 0 0 1 1.5 1.73c.353.74.529 1.59.529 2.555-.009.962-.19 1.815-.547 2.556ZM64.555 2.836h-3.132v2.52c0 .397-.095.695-.29.889-.194.198-.492.298-.899.298h-1.537v2.664h2.667v7.978c0 .83.167 1.562.506 2.194a3.591 3.591 0 0 0 1.442 1.472c.624.348 1.36.52 2.21.52h2.391v-2.782h-1.798c-.466 0-.841-.163-1.13-.483-.29-.325-.434-.75-.434-1.282V9.207h3.448V6.543h-3.448V2.836h.004ZM73.68.286h-3.186V21.37h3.187V.286ZM80.498.312H77.28v3.273h3.218V.312ZM80.466 6.544H77.28V21.37h3.186V6.544ZM96.67 8.99a4.969 4.969 0 0 0-1.899-2.054c-.818-.492-1.772-.74-2.866-.74-1.161 0-2.178.284-3.05.848-.697.447-1.257 1.052-1.7 1.797l-.018-2.298H84.09V21.37h3.191v-8.298c0-.8.154-1.513.457-2.136a3.39 3.39 0 0 1 1.293-1.45c.556-.342 1.202-.514 1.948-.514.669 0 1.238.14 1.717.42.48.28.841.682 1.085 1.201.249.52.37 1.142.37 1.87v8.907h3.192v-9.355c0-1.138-.226-2.149-.674-3.025Z" fill="#fff"></path><path d="M20 21H0V1h20L9.793 10.855 20 21Z" fill="url(#kotlin-logo-large_svg__a)"></path><defs><radialGradient id="kotlin-logo-large_svg__a" cx="0" cy="0" r="1" gradientUnits="userSpaceOnUse" gradientTransform="translate(19.335 1.822) scale(22.9097)"><stop offset="0.003" stop-color="#EF4857"></stop><stop offset="0.469" stop-color="#D211EC"></stop><stop offset="1" stop-color="#7F52FF"></stop></radialGradient></defs></svg></a><a class="ktl-logo-large-module_version-tag_k12Hw" href="https://github.com/JetBrains/kotlin/releases/tag/v2.0.21" target="_blank">v2.0.21</a></div><nav class="ktl-horizontal-menu-module_nav_gbA7M"><ul class="ktl-horizontal-menu-module_menu-list_TJnOF"><li class="ktl-horizontal-menu-module_menu-item-wrap_j6zB-"><span class="ktl-horizontal-menu-module_menu-item_CXDEW rs-text-2 rs-text-2_theme_dark">Solutions</span><ul class="ktl-horizontal-menu-module_dropdown-menu_jwdWI rs-text-2 rs-text-2_theme_dark"><li><a class="ktl-horizontal-menu-module_dropdown-menu-item_9gjwH" href="/lp/mobile/">Multiplatform</a></li><li><a class="ktl-horizontal-menu-module_dropdown-menu-item_9gjwH" href="/lp/server-side/">Server-side</a></li><li><a class="ktl-horizontal-menu-module_dropdown-menu-item_9gjwH" href="/docs/data-science-overview.html">Data science</a></li><li><a class="ktl-horizontal-menu-module_dropdown-menu-item_9gjwH" href="/docs/android-overview.html">Android</a></li></ul></li><li class="ktl-horizontal-menu-module_menu-item-wrap_j6zB-"><a href="/docs/home.html" class="ktl-horizontal-menu-module_menu-item_CXDEW rs-text-2 rs-text-2_theme_dark">Docs</a></li><li class="ktl-horizontal-menu-module_menu-item-wrap_j6zB-"><a href="/community/" class="ktl-horizontal-menu-module_menu-item_CXDEW rs-text-2 rs-text-2_theme_dark">Community</a></li><li class="ktl-horizontal-menu-module_menu-item-wrap_j6zB-"><span href="/education/" class="ktl-horizontal-menu-module_menu-item_CXDEW rs-text-2 rs-text-2_theme_dark ktl-horizontal-menu-module_item-active_Zca2K">Teach</span></li><li class="ktl-horizontal-menu-module_menu-item-wrap_j6zB-"><span class="ktl-horizontal-menu-module_menu-item_CXDEW rs-text-2 rs-text-2_theme_dark">Play</span><ul class="ktl-horizontal-menu-module_dropdown-menu_jwdWI rs-text-2 rs-text-2_theme_dark ktl-horizontal-menu-module_dropdown-menu-align-right_YeB-9"><li><a class="ktl-horizontal-menu-module_dropdown-menu-item_9gjwH" href="https://play.kotlinlang.org/">Playground</a></li><li><a class="ktl-horizontal-menu-module_dropdown-menu-item_9gjwH" href="https://play.kotlinlang.org/byExample">Examples</a></li><li><a class="ktl-horizontal-menu-module_dropdown-menu-item_9gjwH" href="https://play.kotlinlang.org/koans">Koans</a></li></ul></li></ul></nav><button type="button" class="ktl-search-button-module_button_YHJPv ktl-search-button-module_active_lUmdh" data-test="header-search-button" aria-label="Search"><svg width="24" height="24" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.847 6.861A6.99 6.99 0 0 0 9.587 3a6.997 6.997 0 1 0 4.186 12.601l6.106 6.106 1.414-1.414-6.107-6.106a6.99 6.99 0 0 0 .66-7.326ZM14.587 10a5 5 0 1 1-10.001 0 5 5 0 0 1 10 0Z" fill="currentColor"></path></svg></button></header> <div class="teach-wrapper" data-test="teach-index-page"><nav class="teach-sticky-menu"><div class="ktl-top-menu-module_top-menu_PRX9X"><a href="/education/" class="ktl-top-menu-module_logo_CNH2W rs-h3 rs-h3_theme_light">Teach</a><nav class="ktl-horizontal-menu-module_horizontal-menu_pB2-S rs-text-2 rs-text-2_theme_light"><span class="ktl-horizontal-menu-module_item-active_Dot-8">Overview</span><a href="/education/why-teach-kotlin.html" class="ktl-horizontal-menu-module_item_yv0RR rs-link rs-link_hardness_average rs-link_mode_clear rs-link_theme_light">Why Teach Kotlin</a><a href="/education/courses.html" class="ktl-horizontal-menu-module_item_yv0RR rs-link rs-link_hardness_average rs-link_mode_clear rs-link_theme_light">List of Courses</a></nav><a data-test="button" target="_blank" rel="noopener" href="https://surveys.jetbrains.com/s3/kotlin-slack-signup-educators" type="button" class="_main_d4ewd2_17 _modeClassic_d4ewd2_168 _sizeM_d4ewd2_99 _alignIconLeft_d4ewd2_77 _light_d4ewd2_59 _withIcon_d4ewd2_144 teach-sticky-menu__button"><svg viewBox="0 0 24 24" class="_icon_1lgbkjk_3 _sizeM_1lgbkjk_17 _icon_d4ewd2_569"><path d="M9.586 6.601h1.9v-1.9a1.837 1.837 0 00-1.9-1.9 1.9 1.9 0 000 3.8zm1.9 7.6v4.7a1.837 1.837 0 01-1.9 1.9 1.9 1.9 0 01-1.9-1.9v-4.7a1.899 1.899 0 011.9-1.9 1.837 1.837 0 011.9 1.9zm-5.864 1.773a1.839 1.839 0 01-.737.127 1.9 1.9 0 010-3.8h1.9v1.9a1.839 1.839 0 01-1.163 1.773zm3.963-4.673h-4.7a1.9 1.9 0 010-3.8h4.7a1.838 1.838 0 011.9 1.9 1.9 1.9 0 01-1.9 1.9zm11.4-1.9a1.967 1.967 0 00-1.9-1.9 1.899 1.899 0 00-1.9 1.9v1.9h1.9a1.9 1.9 0 001.9-1.9zm-5.862 1.773a1.839 1.839 0 01-.738.127 1.9 1.9 0 01-1.9-1.9v-4.7a1.839 1.839 0 011.9-1.9 1.898 1.898 0 011.9 1.9v4.7a1.837 1.837 0 01-1.162 1.773zm-.738 9.628a1.839 1.839 0 001.9-1.9 1.9 1.9 0 00-1.9-1.9h-1.9v1.9a1.899 1.899 0 001.9 1.9zm4.7-4.7h-4.7a1.9 1.9 0 110-3.8h4.7a1.836 1.836 0 011.9 1.9 1.9 1.9 0 01-1.9 1.9z"></path></svg>Join Educators</a></div></nav><section class="ktl-layout ktl-layout--center ktl-offset-top-xl"><h1 class="ktl-hero ktl-offset-bottom-xxl">Teach Computer Science with Kotlin</h1><div class="teach-launch-course"><div class="ktl-text-1 teach-launch-course__text">The Programming in Kotlin course is a comprehensive toolkit for teaching Kotlin and can be easily customized to align with specific educational needs. The course comes with slides, lecture notes, and assessment resources.<div class="teach-launch-course__button-wrap"><a data-test="button" target="_blank" rel="noopener" href="https://drive.google.com/drive/folders/1nN3LuyEfmBaSDZpnb4VA9kDuLakmVXH1?usp=drive_link" type="button" class="_main_d4ewd2_17 _modeClassic_d4ewd2_168 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _light_d4ewd2_59 teach-launch-course__button">Download all materials →</a></div></div><div class="teach-launch-course__links-block teach-launch-course__links-block_first"><div class="ktl-h4 ktl-offset-bottom-xs">Lecture slides</div><ul class="teach-launch-course__list teach-launch-course__list_large rs-text-2 rs-text-2_theme_light"><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/presentation/d/18EB_yQ6O9hOiyyyxTqSr-4fWpU-8NvJSRqRosSWFsSE/edit?usp=drive_link">Introduction to Kotlin</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/presentation/d/1RvnmqWM-Q_hYi1dWwqN1ieK2pZAwlThOkLI9j5yqViU/edit?usp=drive_link">Object-oriented programming</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/presentation/d/1R7n5plsn5caGpYrI9omxbEuX6pazjDj2d9X0IQ2AdLg/edit?usp=drive_link">Generics</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/presentation/d/1o0c25j-5UKE1Qw94W26numHxMU_xL0uFchCWJfaOuUc/edit?usp=drive_link">Collections</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/presentation/d/19C10TZM1kT0AzEjqSfLZs1_HC3Ye0E9h6muVDikl4uo/edit?usp=drive_link">Functional programming</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/presentation/d/1Plt2cpm-GRzxHt1Vu8C90FWnuSYToucWXPLaJKlBRMc/edit?usp=drive_link">Build systems</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/presentation/d/1n8rTULotZHei3ktajyupwRpKdPDACBAZeBo2GqwYhHY/edit?usp=drive_link">Parallel and concurrent programming</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/presentation/d/1WT0kVeLpZ8-cS1211oXVvjPesgPgTJxIuIJHkU6-49k/edit?usp=drive_link">Asynchronous programming</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/presentation/d/11mYc_tt2c7qw72i8gaQ9vePTcd0F0LbZCS6ep9PFG28/edit?usp=drive_link">JVM + the Kotlin compiler</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/presentation/d/1_F9CVHdbXoRagLUpBGjpwS9DDbzB2K-Cfv4Pz5qKza4/edit?usp=drive_link">Exceptions</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/presentation/d/1sAzzlOs4H3MYEUUYb5NnmAOJsO9YQSss4YAywZaNDJw/edit?usp=drive_link">Testing</a></li></ul></div><div class="teach-launch-course__links-block teach-launch-course__links-block_second"><div class="ktl-h4 ktl-offset-bottom-xs"><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://docs.google.com/document/d/1plW4HJQWuzHDRI2QiTr8hqg5WwIMFQ0Le9AoUmiw3qY/edit?usp=drive_link">Syllabus</a></div><div class="ktl-h4 ktl-offset-bottom-xs">Assessment resources</div><ul class="teach-launch-course__list rs-text-2 rs-text-2_theme_light"><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href=" https://forms.gle/UJ91acwMAk17qax7A">Quizzes</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://forms.gle/GhtGZHprkTUzr5hV6">Homework assignments</a></li><li><a class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" href="https://forms.gle/wTm3M8GfgaVCsxsQ8">Tests</a></li></ul></div></div><div class="teach-top-mobile-buttons"><a data-test="button" target="_blank" rel="noopener" href="https://surveys.jetbrains.com/s3/kotlin-slack-signup-educators" type="button" class="_main_d4ewd2_17 _modeClassic_d4ewd2_168 _sizeM_d4ewd2_99 _alignIconLeft_d4ewd2_77 _light_d4ewd2_59 _withIcon_d4ewd2_144 teach-cta-block-button"><svg viewBox="0 0 24 24" class="_icon_1lgbkjk_3 _sizeM_1lgbkjk_17 _icon_d4ewd2_569"><path d="M9.586 6.601h1.9v-1.9a1.837 1.837 0 00-1.9-1.9 1.9 1.9 0 000 3.8zm1.9 7.6v4.7a1.837 1.837 0 01-1.9 1.9 1.9 1.9 0 01-1.9-1.9v-4.7a1.899 1.899 0 011.9-1.9 1.837 1.837 0 011.9 1.9zm-5.864 1.773a1.839 1.839 0 01-.737.127 1.9 1.9 0 010-3.8h1.9v1.9a1.839 1.839 0 01-1.163 1.773zm3.963-4.673h-4.7a1.9 1.9 0 010-3.8h4.7a1.838 1.838 0 011.9 1.9 1.9 1.9 0 01-1.9 1.9zm11.4-1.9a1.967 1.967 0 00-1.9-1.9 1.899 1.899 0 00-1.9 1.9v1.9h1.9a1.9 1.9 0 001.9-1.9zm-5.862 1.773a1.839 1.839 0 01-.738.127 1.9 1.9 0 01-1.9-1.9v-4.7a1.839 1.839 0 011.9-1.9 1.898 1.898 0 011.9 1.9v4.7a1.837 1.837 0 01-1.162 1.773zm-.738 9.628a1.839 1.839 0 001.9-1.9 1.9 1.9 0 00-1.9-1.9h-1.9v1.9a1.899 1.899 0 001.9 1.9zm4.7-4.7h-4.7a1.9 1.9 0 110-3.8h4.7a1.836 1.836 0 011.9 1.9 1.9 1.9 0 01-1.9 1.9z"></path></svg>Join Educators Сommunity</a><a data-test="button" href="why-teach-kotlin.html" type="button" class="_main_d4ewd2_17 _modeOutline_d4ewd2_389 _sizeM_d4ewd2_99 _alignIconLeft_d4ewd2_77 _light_d4ewd2_59 teach-cta-block-button">Why Teach Kotlin →</a></div><div class="teach-features ktl-row ktl-offset-top-l"><div class="ktl-col-12 ktl-col-md-4"><div class="teach-feature"><div class="teach-feature__icon ktl-offset-bottom-m"><img src="/assets/images/ktl-component/teach/icons/teach-academically-recognized-icon.svg" alt="Academically recognized"/></div><div class="teach-feature__content"><div class="ktl-h3 ktl-offset-bottom-s">Academically recognized</div><div class="ktl-text-2">Over 300 of the world’s top universities include Kotlin in various computer science courses (as of June 2023).</div></div></div></div><div class="ktl-col-12 ktl-col-md-4"><div class="teach-feature"><div class="teach-feature__icon ktl-offset-bottom-m"><img src="/assets/images/ktl-component/teach/icons/teach-popular-icon.svg" alt="Language of the industry"/></div><div class="teach-feature__content"><div class="ktl-h3 ktl-offset-bottom-s">Language of the industry</div><div class="ktl-text-2">Kotlin is used by top companies such as Google, Amazon, Twitter, Reddit, Netflix, Uber, Slack, just to name a few.</div></div></div></div><div class="ktl-col-12 ktl-col-md-4"><div class="teach-feature"><div class="teach-feature__icon ktl-offset-bottom-m"><img src="/assets/images/ktl-component/teach/icons/teach-multiplatform-icon.svg" alt="Multiplatform"/></div><div class="teach-feature__content"><div class="ktl-h3 ktl-offset-bottom-s">Multiplatform</div><div class="ktl-text-2">Kotlin is a top choice for teaching Android development. It is also being adopted for teaching multiplatform development, web, server-side programming, data science, and other computer science topics.</div></div></div></div></div><div class="ktl-offset-top-l"><div class="teach-top-buttons"><a data-test="button" target="_blank" rel="noopener" href="https://surveys.jetbrains.com/s3/kotlin-slack-signup-educators" type="button" class="_main_d4ewd2_17 _modeClassic_d4ewd2_168 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _light_d4ewd2_59 _withIcon_d4ewd2_144 teach-cta-block-button"><svg viewBox="0 0 24 24" class="_icon_1lgbkjk_3 _sizeM_1lgbkjk_17 _icon_d4ewd2_569"><path d="M9.586 6.601h1.9v-1.9a1.837 1.837 0 00-1.9-1.9 1.9 1.9 0 000 3.8zm1.9 7.6v4.7a1.837 1.837 0 01-1.9 1.9 1.9 1.9 0 01-1.9-1.9v-4.7a1.899 1.899 0 011.9-1.9 1.837 1.837 0 011.9 1.9zm-5.864 1.773a1.839 1.839 0 01-.737.127 1.9 1.9 0 010-3.8h1.9v1.9a1.839 1.839 0 01-1.163 1.773zm3.963-4.673h-4.7a1.9 1.9 0 010-3.8h4.7a1.838 1.838 0 011.9 1.9 1.9 1.9 0 01-1.9 1.9zm11.4-1.9a1.967 1.967 0 00-1.9-1.9 1.899 1.899 0 00-1.9 1.9v1.9h1.9a1.9 1.9 0 001.9-1.9zm-5.862 1.773a1.839 1.839 0 01-.738.127 1.9 1.9 0 01-1.9-1.9v-4.7a1.839 1.839 0 011.9-1.9 1.898 1.898 0 011.9 1.9v4.7a1.837 1.837 0 01-1.162 1.773zm-.738 9.628a1.839 1.839 0 001.9-1.9 1.9 1.9 0 00-1.9-1.9h-1.9v1.9a1.899 1.899 0 001.9 1.9zm4.7-4.7h-4.7a1.9 1.9 0 110-3.8h4.7a1.836 1.836 0 011.9 1.9 1.9 1.9 0 01-1.9 1.9z"></path></svg>Join Educators Сommunity</a><a data-test="button" href="why-teach-kotlin.html" type="button" class="_main_d4ewd2_17 _modeOutline_d4ewd2_389 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _light_d4ewd2_59 teach-cta-block-button">Why Teach Kotlin →</a></div></div></section><section class="teach-universities ktl-offset-top-xxl ktl-with-anchor" id="kotlin-courses-around-the-world"><div class="ktl-layout ktl-layout--center"><div class="teach-universities__top"><div class="universities-top"><div class="universities-top__title"><h2 class="ktl-h1"><a href="#kotlin-courses-around-the-world" class="kto-anchor-link kto-anchor-link--small">Kotlin Courses Around the World</a></h2><p class="ktl-text-1 ktl-offset-top-l">Explore our interactive map with links to university courses that<br/> include Kotlin.</p></div><h2 class="ktl-h1 universities-top__title-mobile">Kotlin is taught at 400 universities</h2><div class="universities-top__numbers"><div class="teach-numbers"><div class="teach-number"><div class="teach-number__title"><div class="ktl-hero">69</div></div><div class="teach-number__subtitle"><div class="ktl-text-2">countries</div></div></div><div class="teach-number"><div class="teach-number__title"><div class="ktl-hero">400</div></div><div class="teach-number__subtitle"><div class="ktl-text-2">universities</div></div></div></div></div></div></div><div class="teach-universities__logos ktl-offset-top-m"><div class="teach-logos"><div class="teach-logos__logo"><img class="teach-logos_hopkins" src="/assets/images/ktl-component/teach/universities/harvard.jpg" alt="Harvard University"/></div><div class="teach-logos__logo"><img class="teach-logos_cambridge" src="/assets/images/ktl-component/teach/universities/cambridge.png" alt="University of Cambridge"/></div><div class="teach-logos__logo"><img class="teach-logos_stanford" src="/assets/images/ktl-component/teach/universities/stanford.png" alt="Stanford University"/></div><div class="teach-logos__logo"><img class="teach-logos_imperial" src="/assets/images/ktl-component/teach/universities/imperial.png" alt="Imperial College London"/></div><div class="teach-logos__logo"><img class="teach-logos_chicago" src="/assets/images/ktl-component/teach/universities/uchicago.png" alt="The University of Chicago"/></div></div></div><div class="teach-map teach-map__wrapper"><div style="width:100%;height:100%;margin:0;padding:0;position:relative"><div style="width:100%;height:100%;left:0;top:0;margin:0;padding:0;position:absolute"></div><div style="width:50%;height:50%;left:50%;top:50%;margin:0;padding:0;position:absolute"><div style="width:100%;height:100%;left:0;top:0;margin:0;padding:0;position:absolute"></div></div></div></div><div class="teach-universities__bottom ktl-offset-top-m"><div class="ktl-row"><div class="ktl-col-12 ktl-col-sm-8 ktl-col-sm-offset-2"><p class="ktl-text-2 ktl-offset-bottom-m">To add your university’s Kotlin course to the map, contact us at <a href="mailto:education@kotlinlang.org" class="rs-link">education@kotlinlang.org.</a> <br/>We’ll send you a Kotlin T-shirt and stickers for your students.</p><a data-test="button" href="courses.html" type="button" class="_main_d4ewd2_17 _modeOutline_d4ewd2_389 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _light_d4ewd2_59">All universities</a></div></div></div><div class="teach-universities__mobile-button"><a data-test="button" href="courses.html" type="button" class="_main_d4ewd2_17 _modeOutline_d4ewd2_389 _sizeM_d4ewd2_99 _alignIconLeft_d4ewd2_77 _light_d4ewd2_59">Learn more →</a></div></div></section><section class="teach-resources ktl-offset-top-xxl ktl-with-anchor" id="start-teaching-kotlin"><div class="ktl-layout ktl-layout--center"><div class="teach-resources__top ktl-offset-bottom-xl"><img class="teach-resources__top-image" src="/assets/images/ktl-component/teach/icons/education-main.png" alt="Kotlin resources"/><h2 class="ktl-h1"><a href="#start-teaching-kotlin" class="kto-anchor-link kto-anchor-link--small">Start Teaching Kotlin<br/> with These Resources</a></h2></div><ul class="teach-links"><li class="teach-links__first-list"><p class="ktl-h4 ktl-offset-bottom-xs">Get started</p><ul class="teach-list"><li class="teach-list__item"><a href="/docs/kotlin-tour-welcome.html" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Tour of Kotlin</a></li><li class="teach-list__item"><a href="https://plugins.jetbrains.com/plugin/21067-kotlin-onboarding-introduction" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" target="_blank">Kotlin Onboarding</a></li><li class="teach-list__item"><a href="https://drive.google.com/drive/folders/1nN3LuyEfmBaSDZpnb4VA9kDuLakmVXH1" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light" target="_blank">Programming in Kotlin course materials</a></li><li class="teach-list__item"><div class="ktl-text-2 ktl-dimmed-text">Atomic Kotlin:</div><ul class="teach-list teach-sublist"><li class="teach-list__item"><a href="https://www.atomickotlin.com/exercises/" target="_blank" rel="noopener" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Hands-on exercises</a></li><li class="teach-list__item"><a href="https://github.com/svtk/AtomicKotlinCourse" target="_blank" rel="noopener" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Course project</a></li><li class="teach-list__item"><a href="https://www.jetbrains.com/help/education/educator-start-guide.html" target="_blank" rel="noopener" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Educator start guide</a></li></ul></li><li class="teach-list__item"><a href="https://docs.google.com/document/d/1XIJaV3zhn-tJhDc_6Kr00lmTo5zCBuES3Yt67wX752M/edit" target="_blank" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Kotlin curriculum for beginners</a></li><li class="teach-list__item"><a href="https://hyperskill.org/tracks?category=4&utm_source=jbkotlin_hs&utm_medium=referral&utm_campaign=kotlinlang-education&utm_content=button_1&utm_term=22.03.23" target="_blank" rel="noopener" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Kotlin tracks by JetBrains Academy</a></li></ul></li><li class="teach-links__second-list"><p class="ktl-h4 ktl-offset-bottom-xs">Tools</p><ul class="teach-list"><li class="teach-list__item"><a href="https://www.jetbrains.com/community/education/#students" target="_blank" rel="noopener" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Free educational licenses for students and teachers</a></li><li class="teach-list__item"><a href="https://plugins.jetbrains.com/plugin/10081-jetbrains-academy" target="_blank" rel="noopener" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">JetBrains Academy plugin</a></li><li class="teach-list__item"><a href="/docs/mixing-java-kotlin-intellij.html#converting-an-existing-java-file-to-kotlin-with-j2k" target="_blank" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Java-to-Kotlin converter</a></li><li class="teach-list__item"><a href="https://www.jetbrains.com/code-with-me/" target="_blank" rel="noopener" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Code With Me</a></li></ul></li><li class="teach-links__third-list"><p class="ktl-h4 ktl-offset-bottom-xs">Online Courses</p><ul class="teach-list"><li class="teach-list__item"><a target="_blank" rel="noopener" href="https://www.oreilly.com/library/view/introduction-to-kotlin/9781491964125/" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Introduction to Kotlin Programming</a></li><li class="teach-list__item"><a target="_blank" rel="noopener" href="https://www.oreilly.com/library/view/advanced-kotlin-programming/9781491964149/" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Advanced Kotlin</a></li><li class="teach-list__item"><a target="_blank" rel="noopener" href="https://www.coursera.org/learn/kotlin-for-java-developers" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Programming Kotlin for Java Developers</a></li></ul></li><li class="teach-links__fourth-list"><p class="ktl-h4 ktl-offset-bottom-xs">Android in Kotlin</p><ul class="teach-list"><li class="teach-list__item"><a href="https://developer.android.com/courses/android-basics-compose/course" target="_blank" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Android Basics with Compose course</a></li><li class="teach-list__item"><a href="https://developer.android.com/teach" target="_blank" class="rs-link rs-link_external rs-link_mode_classic rs-link_theme_light">Android Development with Kotlin course</a></li></ul></li><li class="teach-links__fifth-list"><p class="ktl-h4 ktl-offset-bottom-xs">Practice Kotlin</p><ul class="teach-list"><li class="teach-list__item"><a href="https://play.kotlinlang.org/koans/overview" class="rs-link rs-link_mode_classic rs-link_theme_light">Koans</a></li><li class="teach-list__item"><a href="https://kotlinlang.org/lp/kotlin-heroes/" class="rs-link rs-link_mode_classic rs-link_theme_light">Kotlin Heroes</a></li><li class="teach-list__item"><a href="/docs/advent-of-code.html" class="rs-link rs-link_mode_classic rs-link_theme_light">Solve Advent of Code Puzzles</a></li></ul></li></ul></div></section><section class="ktl-layout ktl-layout--center ktl-offset-top-xxl teach-subscription-section"><form action="#" class="teach-subscription-form"><img src="/assets/images/ktl-component/teach/icons/mail.svg" class="teach-subscription-form__icon" alt="Subscribe form"/><div class="teach-subscription-form__text ktl-h3">Subscribe to be the first to know about new resources, webinars, and educational initiatives.</div><div class="_container_1fowpgw_10 _light_1fowpgw_21 _classic_1fowpgw_44 _sizeM_1fowpgw_125 _enabled_1fowpgw_27 teach-subscription-form__input" data-test="input"><label><div class="_wrapper_1fowpgw_14"><div class="_field_1fowpgw_161"><input name="Email" class="_inner_1fowpgw_171" type="email" placeholder="Email address" aria-invalid="false" data-test="input__inner" value=""/></div></div></label></div><div class="teach-subscription-form__checkbox"><div class="_wrapper_4bkrr3_8" data-test="menu-item__wrapper"><label class="_menuItem_4bkrr3_12 _placementLeft_4bkrr3_244 _modeClear_4bkrr3_66 _sizeM_4bkrr3_56 _themeLight_4bkrr3_73" data-test="menu-item"><span class="_checkbox_1mocjf4_10 _themeLight_1mocjf4_191 _sizeM_1mocjf4_28 _classic_1mocjf4_247 _enabled_1mocjf4_75 _icon_4bkrr3_240" data-test="checkbox"><input data-test="checkbox-input" name="privacyConsent" class="_input_1mocjf4_53" type="checkbox"/><span class="_icon_1mocjf4_64" data-test="checkbox-icon"><svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 18 18" class="_checkmark_1mocjf4_154" data-test="checkmark"><path d="M15.69 5.724l-8.053 7.662-4.332-4.192 1.39-1.437 2.953 2.857 6.663-6.338 1.378 1.448z"></path></svg></span></span><span class="_content_4bkrr3_40"><span class="ktl-privacy-notice-module_privacy-notice_zZaV2"><span class="ktl-privacy-notice-module_message_GARBv ktl-text-3">By submitting this form I agree to the <a target="_blank" rel="noreferrer noopener" href="https://www.jetbrains.com/company/privacy.html" class="rs-link">JetBrains Privacy Policy</a></span></span></span></label></div></div><button data-test="button" type="submit" class="_main_d4ewd2_17 _modeClassic_d4ewd2_168 _sizeM_d4ewd2_99 _alignIconLeft_d4ewd2_77 _light_d4ewd2_59 teach-subscription-form__button">Subscribe</button></form></section><section class="teach-video ktl-offset-top-xxl"><div class="ktl-layout ktl-layout--center"><div class="ktl-row"><div class="ktl-col"><div class="ktl-youtube-player-module_youtube-player_aSb0a"><div class="ktl-youtube-player-module_preview_SuIdr"><img src="https://img.youtube.com/vi/CQlBQ5tfbHE/maxresdefault.jpg" alt="" class="ktl-youtube-player-module_image-preview_qXCFf"/><button type="button" aria-label="Play video" class="ktl-youtube-player-module_play-button_SNPG7 ktl-youtube-player-module_play-button_white_jsj-J"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24"><path d="M19 12 8 4v16l11-8z"></path></svg></button></div><div class="ktl-youtube-player-module_player_nH-tB"></div></div></div></div></div></section><section class="ktl-layout ktl-layout--center ktl-offset-top-xxl"><div class="ktl-row"><div class="ktl-col-12 ktl-col-md-10 ktl-col-md-offset-1"><div class="ktl-quotes-slider-module_quotes-slider_y2xdf"><div class="ktl-quotes-slider-module_content_ycgWG"><div class="ktl-quotes-slider-module_icon-container_tRSxF"><svg width="51" height="40" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M51 27.693C51 34.49 45.468 40 38.644 40s-12.356-5.51-12.356-12.307a12.23 12.23 0 0 1 3.457-8.524L49.75 0l1.105 1.144-15.289 14.643c.986-.252 2.013-.4 3.078-.4 6.824 0 12.356 5.51 12.356 12.306ZM12.356 15.386c-1.065 0-2.092.149-3.078.4L24.567 1.145 23.462 0 3.457 19.169A12.23 12.23 0 0 0 0 27.693C0 34.49 5.532 40 12.356 40s12.356-5.51 12.356-12.307c0-6.797-5.532-12.307-12.356-12.307Z" fill="#27282C"></path></svg></div><div><div style="overflow-x:hidden"><div style="-webkit-flex-direction:row;flex-direction:row;-webkit-transition:all 0s ease 0s;transition:all 0s ease 0s;direction:ltr;display:flex;will-change:transform" class="react-swipeable-view-container"><div style="width:100%;-webkit-flex-shrink:0;flex-shrink:0;overflow:auto" aria-hidden="false" data-swipeable="true"><p class="rs-subtitle-2 rs-subtitle-2_theme_light ktl-quotes-slider-module_quote-text_u-x9D">Kotlin is faster to develop and comprehend what is happening; near 100% backwards compatibility makes it easy to show in Java and translate into Kotlin while still utilizing every available library from Java; Students seem to understand it fairly quickly.</p></div></div></div><div class="ktl-quotes-slider-module_nav_0aZMC"><div><p class="rs-text-2 rs-text-2_theme_light">David Vaughn, University of Missouri–St. Louis</p></div><div class="ktl-quotes-slider-module_controls_OuyQ8"><div class="ktl-quotes-slider-module_control_eN3Tf"><svg viewBox="0 0 24 24" class="_icon_1lgbkjk_3 _light_1lgbkjk_27 _sizeM_1lgbkjk_17"><path d="M9.547 5.967L3 12.005l6.547 6.145V13h12.451v-2H9.547V5.967z"></path></svg></div><div class="ktl-quotes-slider-module_slides-count_T0-Ln"><p class="rs-text-2 rs-text-2_theme_light">1/3</p></div><div class="ktl-quotes-slider-module_control_eN3Tf ktl-quotes-slider-module_control-active_sE-QK"><svg viewBox="0 0 24 24" class="_icon_1lgbkjk_3 _light_1lgbkjk_27 _sizeM_1lgbkjk_17"><path d="M14.446 10.978V11H1.996v2h12.45v5.034l6.547-6.039-6.547-6.144v5.127z"></path></svg></div></div></div></div></div></div></div></div></section><section class="ktl-offset-top-xxl"><div class="ktl-cta-block-module_wrapper_U-RIE"><div class="ktl-cta-block-module_layout_J-jWe ktl-layout ktl-layout--center"><div class="ktl-cta-block-module_top-title_ve70f rs-text-2 rs-text-2_hardness_hard rs-text-2_theme_dark">If you would like to introduce Kotlin into your classroom or have any questions about teaching or learning Kotlin</div><h2 class="ktl-cta-block-module_main-title_JbxBG rs-h2 rs-h2_theme_dark">Connect with us</h2><div class="ktl-cta-block-module_content_lCnnn"><div class="teach-cta-block-buttons"><a data-test="button" target="_blank" rel="noopener" href="https://surveys.jetbrains.com/s3/kotlin-slack-signup-educators" type="button" class="_main_d4ewd2_17 _modeRock_d4ewd2_241 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _dark_d4ewd2_62 teach-cta-block-button">Slack-channel →</a><a data-test="button" href="mailto:education@kotlinlang.org" type="button" class="_main_d4ewd2_17 _modeRock_d4ewd2_241 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _dark_d4ewd2_62 teach-cta-block-button">education@kotlinlang.org</a></div></div></div></div></section></div> <footer class="ktl-footer-module_footer_m67Up"><div class="ktl-layout ktl-layout--center"><div class="ktl-footer-module_social-list-area_bS3eE"><div class="rs-text-2 rs-text-2_theme_dark ktl-footer-module_social-list-title_HPzIP">Stay in touch:</div><div class="ktl-social-list-module_social-list_K2Nqu"><a data-test="button" target="_blank" title="Kotlin on GitHub" href="https://github.com/JetBrains/kotlin" type="button" class="_main_d4ewd2_17 _modeClear_d4ewd2_478 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _dark_d4ewd2_62 _withIcon_d4ewd2_144 _withoutText_d4ewd2_138 ktl-social-item-module_social-item_GpKEF undefined"><svg viewBox="0 0 24 24" class="_icon_1lgbkjk_3 _sizeM_1lgbkjk_17 _icon_d4ewd2_569"><path d="M9.32 20.698a.293.293 0 00.284-.042.31.31 0 00.119-.266v-1.75a3.86 3.86 0 01-1.91 0 1.858 1.858 0 01-1.207-1.234 1.74 1.74 0 00-.805-1.029 1.026 1.026 0 01-.503-.617s.1-.308.604-.206c.502.103.905.515 1.407 1.338a1.924 1.924 0 002.213.514c.002-.244.036-.485.1-.72.06-.245.202-.463.402-.617a3.863 3.863 0 01-3.921-3.497 4.262 4.262 0 01.905-3.6 2.885 2.885 0 01.2-2.469h.101c.842.09 1.642.41 2.313.926a8.086 8.086 0 014.425 0 7.19 7.19 0 012.413-.926 2.996 2.996 0 01.201 2.469 4.434 4.434 0 01.905 3.6 3.784 3.784 0 01-3.921 3.497 1.648 1.648 0 01.502 1.234v3.086a.404.404 0 00.247.382c.05.02.102.03.156.03a9.17 9.17 0 006.435-8.846 9.102 9.102 0 00-9-9.155 9.103 9.103 0 00-9 9.155 9.05 9.05 0 006.336 8.742z"></path></svg></a><a data-test="button" target="_blank" title="Kotlin on Twitter" href="https://twitter.com/kotlin" type="button" class="_main_d4ewd2_17 _modeClear_d4ewd2_478 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _dark_d4ewd2_62 _withIcon_d4ewd2_144 _withoutText_d4ewd2_138 ktl-social-item-module_social-item_GpKEF undefined"><svg viewBox="0 0 24 24" class="_icon_1lgbkjk_3 _sizeM_1lgbkjk_17 _icon_d4ewd2_569"><path d="M17.09 4h2.715l-5.93 6.777L20.851 20H15.39l-4.278-5.593L6.216 20H3.5l6.342-7.25L3.15 4h5.601l3.867 5.113L17.091 4zm-.952 14.375h1.504L7.934 5.54H6.32l9.818 12.836z"></path></svg></a><a data-test="button" target="_blank" title="Kotlin Slack" href="https://surveys.jetbrains.com/s3/kotlin-slack-sign-up" type="button" class="_main_d4ewd2_17 _modeClear_d4ewd2_478 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _dark_d4ewd2_62 _withIcon_d4ewd2_144 _withoutText_d4ewd2_138 ktl-social-item-module_social-item_GpKEF undefined"><svg viewBox="0 0 24 24" class="_icon_1lgbkjk_3 _sizeM_1lgbkjk_17 _icon_d4ewd2_569"><path d="M9.586 6.601h1.9v-1.9a1.837 1.837 0 00-1.9-1.9 1.9 1.9 0 000 3.8zm1.9 7.6v4.7a1.837 1.837 0 01-1.9 1.9 1.9 1.9 0 01-1.9-1.9v-4.7a1.899 1.899 0 011.9-1.9 1.837 1.837 0 011.9 1.9zm-5.864 1.773a1.839 1.839 0 01-.737.127 1.9 1.9 0 010-3.8h1.9v1.9a1.839 1.839 0 01-1.163 1.773zm3.963-4.673h-4.7a1.9 1.9 0 010-3.8h4.7a1.838 1.838 0 011.9 1.9 1.9 1.9 0 01-1.9 1.9zm11.4-1.9a1.967 1.967 0 00-1.9-1.9 1.899 1.899 0 00-1.9 1.9v1.9h1.9a1.9 1.9 0 001.9-1.9zm-5.862 1.773a1.839 1.839 0 01-.738.127 1.9 1.9 0 01-1.9-1.9v-4.7a1.839 1.839 0 011.9-1.9 1.898 1.898 0 011.9 1.9v4.7a1.837 1.837 0 01-1.162 1.773zm-.738 9.628a1.839 1.839 0 001.9-1.9 1.9 1.9 0 00-1.9-1.9h-1.9v1.9a1.899 1.899 0 001.9 1.9zm4.7-4.7h-4.7a1.9 1.9 0 110-3.8h4.7a1.836 1.836 0 011.9 1.9 1.9 1.9 0 01-1.9 1.9z"></path></svg></a><a data-test="button" target="_blank" title="Kotlin on Reddit" href="https://www.reddit.com/r/Kotlin/" type="button" class="_main_d4ewd2_17 _modeClear_d4ewd2_478 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _dark_d4ewd2_62 _withIcon_d4ewd2_144 _withoutText_d4ewd2_138 ktl-social-item-module_social-item_GpKEF undefined"><svg viewBox="0 0 24 24" class="_icon_1lgbkjk_3 _sizeM_1lgbkjk_17 _icon_d4ewd2_569"><path d="M21.422 9.543a2.206 2.206 0 00-3.079-.03 10.914 10.914 0 00-5.877-1.87l1.007-4.708 3.27.7a1.564 1.564 0 003.128-.071 1.56 1.56 0 00-2.965-.683l-3.649-.773a.376.376 0 00-.397.16.343.343 0 00-.052.145l-1.115 5.248c-2.13.026-4.204.676-5.967 1.87A2.195 2.195 0 103.3 13.108a3.89 3.89 0 00-.053.665c0 3.378 3.935 6.127 8.788 6.127s8.789-2.732 8.789-6.127c0-.223-.018-.446-.054-.666a2.215 2.215 0 001.294-2.012v-.001a2.191 2.191 0 00-.642-1.551zm-14.42 3.115a1.563 1.563 0 113.127.002 1.563 1.563 0 01-3.126-.002zm8.753 4.151c-1.079 1.078-3.127 1.15-3.72 1.15-.612 0-2.66-.09-3.72-1.15a.4.4 0 010-.574.395.395 0 01.287-.122.393.393 0 01.288.122c.912.657 2.022.98 3.145.916a4.86 4.86 0 003.145-.917.405.405 0 01.576 0 .44.44 0 010 .575zm-.287-2.57a1.564 1.564 0 111.564-1.563 1.577 1.577 0 01-1.564 1.563z"></path></svg></a><a data-test="button" target="_blank" title="Kotlin on Stack Overflow" href="https://stackoverflow.com/questions/tagged/kotlin" type="button" class="_main_d4ewd2_17 _modeClear_d4ewd2_478 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _dark_d4ewd2_62 _withIcon_d4ewd2_144 _withoutText_d4ewd2_138 ktl-social-item-module_social-item_GpKEF undefined"><svg viewBox="0 0 24 24" class="_icon_1lgbkjk_3 _sizeM_1lgbkjk_17 _icon_d4ewd2_569"><path d="M15.642 15.56l-8.16-1.705.346-1.64 8.159 1.705-.345 1.64zm.474-2.072L8.562 9.97l.69-1.533 7.555 3.54-.69 1.511zm.95-1.9l-6.41-5.33 1.057-1.274 6.41 5.331-1.057 1.274zM13.461 3.3l1.339-.993L19.764 9l-1.338.993L13.461 3.3zm2.18 14.354H7.31v-1.662h8.332v1.662zm1.684-3.324v5.008H5.647V14.33H3.985V21h15.002v-6.67h-1.662z"></path></svg></a><a data-test="button" target="_blank" title="Kotlin on YouTube" href="https://www.youtube.com/channel/UCP7uiEZIqci43m22KDl0sNw" type="button" class="_main_d4ewd2_17 _modeClear_d4ewd2_478 _sizeL_d4ewd2_106 _alignIconLeft_d4ewd2_77 _dark_d4ewd2_62 _withIcon_d4ewd2_144 _withoutText_d4ewd2_138 ktl-social-item-module_social-item_GpKEF undefined"><svg viewBox="0 0 24 24" class="_icon_1lgbkjk_3 _sizeM_1lgbkjk_17 _icon_d4ewd2_569"><path d="M3.917 17.765a2.94 2.94 0 001.98.82c1.437.146 6.107.191 6.107.191s3.775-.006 6.289-.199a2.486 2.486 0 001.799-.812c.386-.568.63-1.22.714-1.901.112-1.03.172-2.065.18-3.101v-1.454a30.817 30.817 0 00-.18-3.1 4.32 4.32 0 00-.714-1.903 2.473 2.473 0 00-1.8-.81c-2.513-.195-6.284-.195-6.284-.195H12s-3.77 0-6.284.195a2.476 2.476 0 00-1.799.81 4.318 4.318 0 00-.714 1.903 30.782 30.782 0 00-.18 3.1v1.454c.008 1.036.068 2.07.18 3.1a4.31 4.31 0 00.714 1.902zM9.761 8.67l5.615 3.369-5.615 3.369V8.67z"></path></svg></a></div></div><nav><ul class="ktl-nav-list-module_nav-list_-k4np"><li class="ktl-nav-item-module_nav-item_isoyN rs-text-2 rs-text-2_theme_dark ktl-nav-item-module_nav-item-dark-theme_FijdH"><a href="https://kotlinlang.org/docs/contribute.html" title="Contributing to Kotlin" class="rs-link rs-link_hardness_hard rs-link_mode_clear rs-link_theme_dark">Contributing to Kotlin</a></li><li class="ktl-nav-item-module_nav-item_isoyN rs-text-2 rs-text-2_theme_dark ktl-nav-item-module_nav-item-dark-theme_FijdH"><a href="https://kotlinlang.org/docs/releases.html" title="Releases" class="rs-link rs-link_hardness_hard rs-link_mode_clear rs-link_theme_dark">Releases</a></li><li class="ktl-nav-item-module_nav-item_isoyN rs-text-2 rs-text-2_theme_dark ktl-nav-item-module_nav-item-dark-theme_FijdH"><a href="https://kotlinlang.org/assets/kotlin-media-kit.pdf" title="Press Kit" class="rs-link rs-link_hardness_hard rs-link_mode_clear rs-link_theme_dark">Press Kit</a></li><li class="ktl-nav-item-module_nav-item_isoyN rs-text-2 rs-text-2_theme_dark ktl-nav-item-module_nav-item-dark-theme_FijdH"><a href="https://kotlinlang.org/docs/security.html" title="Security" class="rs-link rs-link_hardness_hard rs-link_mode_clear rs-link_theme_dark">Security</a></li><li class="ktl-nav-item-module_nav-item_isoyN rs-text-2 rs-text-2_theme_dark ktl-nav-item-module_nav-item-dark-theme_FijdH"><a target="_blank" href="https://blog.jetbrains.com/kotlin/" title="Blog" class="rs-link rs-link_hardness_hard rs-link_mode_clear rs-link_theme_dark">Blog</a></li><li class="ktl-nav-item-module_nav-item_isoyN rs-text-2 rs-text-2_theme_dark ktl-nav-item-module_nav-item-dark-theme_FijdH"><a target="_blank" href="https://youtrack.jetbrains.com/issues/KT" title="Issue Tracker" class="rs-link rs-link_hardness_hard rs-link_mode_clear rs-link_theme_dark">Issue Tracker</a></li><li class="ktl-nav-item-module_nav-item_isoyN rs-text-2 rs-text-2_theme_dark ktl-nav-item-module_nav-item-dark-theme_FijdH"><a target="_blank" href="https://resources.jetbrains.com/storage/products/kotlin/docs/kotlin_logos.zip" title="Brand assets" class="rs-link rs-link_hardness_hard rs-link_mode_clear rs-link_theme_dark">Brand assets</a></li><li class="ktl-nav-item-module_nav-item_isoyN rs-text-2 rs-text-2_theme_dark ktl-nav-item-module_nav-item-dark-theme_FijdH"><a target="_blank" href="https://www.jetbrains.com/careers/jobs/#team=Kotlin" title="Careers" class="rs-link rs-link_hardness_hard rs-link_mode_clear rs-link_theme_dark">Careers</a></li><li class="ktl-nav-item-module_nav-item_isoyN rs-text-2 rs-text-2_theme_dark ktl-nav-item-module_nav-item-dark-theme_FijdH"><a target="_blank" href="https://www.jetbrainsmerchandise.com/brand/kotlin.html" title="Kotlin Merch" class="rs-link rs-link_hardness_hard rs-link_mode_clear rs-link_theme_dark">Kotlin Merch</a></li><li class="ktl-nav-item-module_nav-item_isoyN rs-text-2 rs-text-2_theme_dark ktl-nav-item-module_nav-item-dark-theme_FijdH"><a href="#opt-out" title="Opt-Out" class="rs-link rs-link_hardness_hard rs-link_mode_clear rs-link_theme_dark">Opt-Out</a></li></ul></nav><a href="https://jetbrains.com" target="_blank" class="ktl-footer-module_logo-area_SsNTa ktl-logo-module_link_bNecp" aria-label="jetbrains.com link" rel="noreferrer"><svg width="149" height="32" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M43.242 20.293c0 .423-.09.797-.269 1.125a1.86 1.86 0 0 1-.756.762c-.33.18-.698.269-1.12.269H39V25.5h2.54c.955 0 1.812-.214 2.574-.642a4.679 4.679 0 0 0 1.792-1.773c.433-.752.652-1.598.652-2.544V10.509h-3.316v9.784Zm8.928-.911h6.946v-2.804H52.17v-3.181h7.678v-2.888h-10.91v14.987h11.124v-2.888H52.17v-3.226Zm8.932-5.9h4.442v12.01h3.316v-12.01h4.421v-2.973H61.097v2.977l.005-.005Zm23.512 4.5a3.94 3.94 0 0 0-.837-.323c.224-.065.438-.144.638-.244a3.18 3.18 0 0 0 1.29-1.195c.308-.513.467-1.1.467-1.768 0-.761-.209-1.444-.622-2.046-.413-.598-.996-1.066-1.743-1.404-.747-.334-1.603-.503-2.56-.503h-6.656v14.987h6.786c1.006 0 1.902-.174 2.694-.528.787-.353 1.4-.841 1.837-1.473.433-.628.653-1.345.653-2.151 0-.742-.17-1.405-.513-1.992a3.525 3.525 0 0 0-1.43-1.364l-.004.005Zm-6.802-4.959h2.943c.408 0 .767.075 1.08.22.314.144.558.353.732.627.175.269.264.587.264.95 0 .364-.09.708-.264.992a1.726 1.726 0 0 1-.732.652 2.41 2.41 0 0 1-1.08.229h-2.943v-3.675.005Zm5.069 9.067c-.19.284-.458.503-.802.658a2.908 2.908 0 0 1-1.195.229h-3.072v-3.844h3.072c.444 0 .837.084 1.185.249.344.164.618.393.807.692.19.299.289.637.289 1.02 0 .384-.095.712-.284.996Zm14.798-2.654c.831-.398 1.474-.96 1.932-1.683.458-.721.687-1.558.687-2.514 0-.956-.224-1.763-.672-2.48-.448-.716-1.086-1.27-1.907-1.662-.822-.394-1.773-.588-2.858-.588h-6.563v14.987h3.321V20.04h2.161l3.043 5.457h3.789l-3.426-5.86c.17-.06.339-.125.498-.2h-.005Zm-1.076-3.062a1.798 1.798 0 0 1-.791.722c-.344.17-.747.254-1.21.254h-2.988v-4.147h2.988c.463 0 .866.084 1.21.249.343.164.607.408.791.717.185.308.28.677.28 1.095 0 .418-.095.787-.28 1.1v.01ZM106.9 10.51l-5.352 14.987h3.371l1.06-3.306h5.557l1.135 3.306h3.306l-5.482-14.987H106.9Zm-.169 9.171 1.723-5.287.204-.961.204.96 1.842 5.288h-3.973Zm10.347 5.816h3.425V10.51h-3.425v14.987Zm15.51-4.85L126.14 10.51h-3.232v14.987h3.027V15.36l6.414 10.137h3.266V10.51h-3.027v10.137Zm15.763-1.678a4.466 4.466 0 0 0-1.364-1.568 4.95 4.95 0 0 0-2.011-.846l-2.55-.523c-.398-.095-.717-.26-.951-.498a1.228 1.228 0 0 1-.353-.891c0-.324.084-.603.259-.842.169-.239.413-.423.722-.558.308-.134.667-.199 1.075-.199.408 0 .777.07 1.091.21.313.139.557.333.731.587.175.254.264.538.264.861h3.321c-.019-.871-.263-1.643-.722-2.31-.458-.672-1.1-1.195-1.916-1.573-.817-.379-1.753-.568-2.799-.568-1.045 0-1.971.194-2.783.588-.812.393-1.449.936-1.902 1.633-.453.697-.682 1.488-.682 2.38 0 .722.144 1.374.438 1.951a3.954 3.954 0 0 0 1.24 1.45 4.906 4.906 0 0 0 1.862.801l2.699.558c.443.104.791.299 1.05.577.259.28.384.623.384 1.041 0 .334-.095.637-.284.901a1.826 1.826 0 0 1-.792.613c-.338.144-.737.214-1.195.214-.458 0-.891-.08-1.265-.24a1.94 1.94 0 0 1-.866-.686 1.72 1.72 0 0 1-.309-1.021h-3.321c.015.936.264 1.757.757 2.474.488.712 1.16 1.27 2.017 1.668.856.399 1.837.598 2.942.598 1.106 0 2.101-.204 2.958-.612.861-.409 1.528-.971 2.011-1.688.483-.717.722-1.529.722-2.435a4.4 4.4 0 0 0-.488-2.052l.01.005Z" fill="#fff"></path><path d="m10.17 1.83-8.34 8.34A6.252 6.252 0 0 0 0 14.59V29.5A2.5 2.5 0 0 0 2.5 32h14.91a6.26 6.26 0 0 0 4.42-1.83l8.34-8.34A6.252 6.252 0 0 0 32 17.41V2.5A2.5 2.5 0 0 0 29.5 0H14.59a6.26 6.26 0 0 0-4.42 1.83Z" fill="url(#jetbrains-logo_svg__a)"></path><path d="M24 8H4v20h20V8Z" fill="#000"></path><path d="M15 23.5H6.5v2H15v-2Z" fill="#fff"></path><defs><linearGradient id="jetbrains-logo_svg__a" x1="0.425" y1="31.36" x2="31.31" y2="0.905" gradientUnits="userSpaceOnUse"><stop stop-color="#FF9419"></stop><stop offset="0.43" stop-color="#FF021D"></stop><stop offset="0.99" stop-color="#E600FF"></stop></linearGradient></defs></svg></a><div class="rs-text-3 rs-text-3_hardness_hard rs-text-3_theme_dark ktl-footer-module_text-area_flccc"><div>Supported and developed by <a class="rs-link rs-link_hardness_hard rs-link_mode_classic rs-link_theme_dark" href="https://www.jetbrains.com/" target="_blank">JetBrains</a>.</div><div class="ktl-footer-module_copyright_XjtgY">Kotlin™ is protected under the <a class="rs-link rs-link_hardness_hard rs-link_mode_classic rs-link_theme_dark" href="https://kotlinlang.org/foundation/kotlin-foundation.html">Kotlin Foundation</a> <br class="ktl-footer-module_copyrightBreakLine_0hI7E"/>and licensed under the <a class="rs-link rs-link_hardness_hard rs-link_mode_classic rs-link_theme_dark" target="_blank" href="https://github.com/JetBrains/kotlin-web-site/blob/master/LICENSE" rel="noreferrer">Apache 2 license</a>.</div></div></div></footer> </div> <script>document.body.className = document.body.className.replace('page_js_no', 'page_js_yes')</script> <script src="/_assets/shared.js?&v=884c3869f174308b79073932b095689d"></script> <script src="/_assets/common.js?&v=4ac72f29f78510ecdd960d7ee4002647"></script> </body> </html>