{"id":11266,"date":"2023-03-08T07:00:39","date_gmt":"2023-03-08T15:00:39","guid":{"rendered":"https:\/\/www.codingdojo.com\/blog\/?p=11266"},"modified":"2025-07-29T02:01:56","modified_gmt":"2025-07-29T09:01:56","slug":"what-is-kotlin","status":"publish","type":"post","link":"https:\/\/www.codingdojo.com\/blog\/what-is-kotlin","title":{"rendered":"What Is Kotlin and Why Use It In Programming?"},"content":{"rendered":"<p><\/p>\r\n<h6>Image via <a href=\"https:\/\/www.flickr.com\/photos\/kosmulski_origami\/\">Michael Kosmulski<\/a><\/h6>\r\n<p><span style=\"font-weight: 400;\">Since its initial release in 2016, Kotlin has gained <\/span><span style=\"font-weight: 400;\">immense popularity<\/span><span style=\"font-weight: 400;\"> and quickly became one of the most popular programming languages in the world.\u00a0<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">What is Kotlin known for, you may ask?\u00a0<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">It prides itself on its <\/span><span style=\"font-weight: 400;\">safe and modern<\/span><span style=\"font-weight: 400;\"> programming language that&#8217;s easy to pick up. No matter your skillset, Kotlin&#8217;s goal is to provide programming language aimed to make developers happier.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Keep reading to learn why Kotlin is used in programming and how it might be the right fit for you.<\/span><\/p>\r\n<h2><span style=\"font-weight: 400;\">What Is Kotlin?<\/span><\/h2>\r\n<p><a href=\"https:\/\/kotlinlang.org\/\"><span style=\"font-weight: 400;\">Kotlin<\/span><\/a><span style=\"font-weight: 400;\"> is a programming language that is compatible with Java and other languages. One of its primary features is productive programming\u2014it provides many ways to reuse code between multiple platforms.\u00a0<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Kotlin&#8217;s clean language design and powerful features offer an accessible user experience. Rather than introducing new concepts, Kotlin brings together programming language features that have proved to be beneficial for large-scale projects for some time now.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Because of its adaptable framework, Kotlin has garnered a large community of users worldwide.<\/span><\/p>\r\n<h2><span style=\"font-weight: 400;\">What Is Kotlin Used For?<\/span><\/h2>\r\n<p><span style=\"font-weight: 400;\">Kotlin is super versatile. In 2021 alone, about <\/span><span style=\"font-weight: 400;\">2 million<\/span><span style=\"font-weight: 400;\"> programming professionals used Kotlin at least once. Among them, roughly 1 million use Kotlin as one of their 3 primary languages.\u00a0<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Here are some of the ways programming professionals are using Kotlin today:\u00a0<\/span><\/p>\r\n<h3>Back-End Web Development<\/h3>\r\n<p><span style=\"font-weight: 400;\">Many programmers use Kotlin\/JVM for back-end web development because they&#8217;re writing less code than they would with Java, even if it&#8217;s the same code.\u00a0<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Kotlin can <\/span><b>reduce most of the vocabulary associated with Java<\/b><span style=\"font-weight: 400;\">. For instance, code you write in Kotlin will generally be shorter and more direct than code written in Java.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Kotlin especially comes in handy for big projects and teams. By sharing this common code on the back-end development among different modules, levels of efficiency can skyrocket.\u00a0\u00a0<\/span><\/p>\r\n<h3>Server-Side Development<\/h3>\r\n<p><span style=\"font-weight: 400;\">In addition to the back-end, Kotlin is also great for server-side web development using Kotlin\/JS.\u00a0<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Not only does Kotlin\/JS allow you to access powerful browser and web APIs, but it makes sure you remain type-safe throughout.\u00a0<\/span><\/p>\r\n<h3>Full-Stack Web Development<\/h3>\r\n<p><span style=\"font-weight: 400;\">With Kotlin, full-stack web developers can write front-end code in the same language used for their back-end code.\u00a0<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Kotlin compiles them both to JavaScript to run in the browser. It allows syntax, shared libraries, and programming paradigms to stay consistent on both the front and back end.<\/span><\/p>\r\n<h3>Android Development<\/h3>\r\n<p><span style=\"font-weight: 400;\">With over <\/span><span style=\"font-weight: 400;\">2.5 billion<\/span><span style=\"font-weight: 400;\"> active Android users spanning over 190 countries, Kotlin is the ideal programming language for Android development.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Kotlin is supported by the official integrated development environment (IDE) for Android development, Android Studio. So programmers can easily use Kotlin&#8217;s code when working on Android development.<\/span><\/p>\r\n<h3>Cross-Platform Mobile Development<\/h3>\r\n<p><span style=\"font-weight: 400;\">Unlike other cross-platform app development tools, <\/span><a href=\"https:\/\/kotlinlang.org\/lp\/mobile\/\"><span style=\"font-weight: 400;\">Kotlin&#8217;s Multiplatform Mobile (KMM)<\/span><\/a><span style=\"font-weight: 400;\"> allows you to use the capabilities native to both iOS and Android devices.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">The best part about KMM is that you won&#8217;t need to introduce new programming languages to a codebase to make a cross-platform app. Not only does this simplify the mobile development process, but both Android and iOS users will be able to get their desired experience as a result.<\/span><\/p>\r\n<h3>Data Science<\/h3>\r\n<p><span style=\"font-weight: 400;\">Data scientists use scientific methods, processes, algorithms and systems to extract knowledge and insight. To do so, they often turn to Java in their line of work.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Kotlin is a perfect alternative because they can use all the standard Java libraries from previous projects but write their code in Kotlin.<\/span><\/p>\r\n<h2><span style=\"font-weight: 400;\">What Are the Advantages of Kotlin?<\/span><\/h2>\r\n<p><span style=\"font-weight: 400;\">Whether you already know coding or you&#8217;re just getting started, here are some advantages of Kotlin that could make it the right choice for you:<\/span><\/p>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>It&#8217;s concise<\/b><span style=\"font-weight: 400;\"> &#8211; When it&#8217;s done right, less code results in fewer bugs. With Kotlin, you won&#8217;t have to sacrifice q<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">quality over quantity\u2014you&#8217;ll be able to write less code all while improving readability.\u00a0<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>It&#8217;s compatible with Java<\/b><span style=\"font-weight: 400;\"> &#8211; Since Kotlin is fully compatible with Java, there&#8217;s no risk in trying it. Developers have access to all Java frameworks and libraries while writing more clear and secure code.\u00a0<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>It has a strong community<\/b><span style=\"font-weight: 400;\"> &#8211; With a large and competent team working on it, Kotlin continuously improves its language. Not to mention, the community is always growing and willing to help.<\/span><\/li>\r\n<\/ul>\r\n<h2><span style=\"font-weight: 400;\">Kotlin vs. Java: What&#8217;s the Difference?<\/span><\/h2>\r\n<p><span style=\"font-weight: 400;\">Java was released in 1996. It&#8217;s an object-oriented programming language that produces software for multiple platforms. Java is mostly used for Android and web-based apps, financial and retail services, and science and research.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Exactly 20 years later, Kotlin was introduced. It&#8217;s an object-oriented programming language supported by the Java virtual machine and Java libraries.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">The difference between the two is that Kotlin saves time for developers and uses less redundant code. With Kotlin, you&#8217;re essentially working with <\/span><b>Java made simple<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\r\n<h2><span style=\"font-weight: 400;\">Why Should You Learn Kotlin?<\/span><\/h2>\r\n<p><span style=\"font-weight: 400;\">With about <\/span><a href=\"https:\/\/careerkarma.com\/blog\/how-many-coding-languages-are-there\/#:~:text=How%20Many%20Computer%20Languages%20Are,to%20an%20impressive%20245%20languages.\"><span style=\"font-weight: 400;\">700 programming languages<\/span><\/a><span style=\"font-weight: 400;\"> out there, the process of choosing the right one to learn or develop a project with can be challenging. Why Kotlin?<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Kotlin language can run side by side with Java and is easier to write. If you want to develop Android or multi-platform apps, you can do it quickly and easily with Kotlin.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Not to mention, it&#8217;s worth learning because of how popular it is. Companies like Google, Amazon, Netflix, Pinterest, Uber, Foursquare, Trello, and Capital One use Kotlin for several high-performing apps.\u00a0<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">The learning curve won&#8217;t be too steep if you already know Java. With its rise in the programming space, Kotlin is bound to stick around and become the future programming language for big projects.\u00a0<\/span><\/p>\r\n<h2><span style=\"font-weight: 400;\">Kotlin Code Example<\/span><\/h2>\r\n<p><span style=\"font-weight: 400;\">In this example, you&#8217;ll see how the Kotlin language uses packages.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Kotlin code is defined in packages. It&#8217;s important to note that if you don&#8217;t specify a package in a source file, its content will go to the default package.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">From here, you can use printIn to write the line in which you want to display, in this case, &#8220;Hello, World!&#8221; For more examples like this one, you can visit the <\/span><a href=\"https:\/\/kotlinlang.org\/docs\/home.html\"><span style=\"font-weight: 400;\">Kotlin website<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\r\n<h2><span style=\"font-weight: 400;\">Conclusion<\/span><\/h2>\r\n<p><span style=\"font-weight: 400;\">Learning code takes time, effort, dedication, and practice. Before you decide to learn a new programming language, It&#8217;s important to choose the correct one that fits your needs. Luckily, Kotlin is popular, secure, efficient, and easy.\u00a0\u00a0<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">If you&#8217;re serious about learning Kotlin, consider taking one of <\/span><a href=\"https:\/\/www.codingdojo.com\/online-coding-bootcamp-full-time\"><span style=\"font-weight: 400;\">Coding Dojo&#8217;s<\/span><\/a><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.codingdojo.com\/online-coding-bootcamp-full-time\"> courses<\/a>. With programs scientifically designed to ensure success, you&#8217;ll be able to thrive as a STEM professional for the rest of your career.\u00a0<\/span><\/p>\r\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1489,"featured_media":11277,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[2],"tags":[],"ppma_author":[2102],"class_list":["post-11266","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-posts"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Is Kotlin and Why Use It In Programming? - Coding Dojo<\/title>\n<meta name=\"description\" content=\"What is a Kotlin in programming? 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