{"id":9424,"date":"2020-10-15T08:56:23","date_gmt":"2020-10-15T08:56:23","guid":{"rendered":"https:\/\/www.appschopper.com\/blog\/?p=9424"},"modified":"2020-10-15T13:08:24","modified_gmt":"2020-10-15T13:08:24","slug":"everything-need-know-about-kotlin-programming-language-google","status":"publish","type":"post","link":"https:\/\/www.appschopper.com\/blog\/everything-need-know-about-kotlin-programming-language-google\/","title":{"rendered":"Everything You Need to Know About Kotlin Programming Language by Google"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_17 counter-hierarchy counter-decimal ez-toc-white\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><i class=\"ez-toc-glyphicon ez-toc-icon-toggle\"><\/i><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1\"><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.appschopper.com\/blog\/everything-need-know-about-kotlin-programming-language-google\/#What_Is_Kotlin\" title=\"What Is Kotlin?\">What Is Kotlin?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.appschopper.com\/blog\/everything-need-know-about-kotlin-programming-language-google\/#Top_Popular_AppsCompanies_Using_Kotlin\" title=\"Top Popular Apps\/Companies Using Kotlin\">Top Popular Apps\/Companies Using Kotlin<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.appschopper.com\/blog\/everything-need-know-about-kotlin-programming-language-google\/#What_Is_Kotlin_Used_For\" title=\"What Is Kotlin Used For?\">What Is Kotlin Used For?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.appschopper.com\/blog\/everything-need-know-about-kotlin-programming-language-google\/#Kotlin_Language_and_Syntax\" title=\"Kotlin Language and Syntax\">Kotlin Language and Syntax<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.appschopper.com\/blog\/everything-need-know-about-kotlin-programming-language-google\/#Why_Do_Developers_Prefer_Kotlin_Over_Any_Other_Language\" title=\"Why Do Developers Prefer Kotlin Over Any Other Language?\">Why Do Developers Prefer Kotlin Over Any Other Language?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.appschopper.com\/blog\/everything-need-know-about-kotlin-programming-language-google\/#Kotlin_vs_Java\" title=\"Kotlin vs Java\">Kotlin vs Java<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.appschopper.com\/blog\/everything-need-know-about-kotlin-programming-language-google\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\">6<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><p><em>You may have just recently started hearing about the Kotlin programming language, but developers have known about &#8212; and loved it &#8212; for a while. In this blog, we&#8217;ll discuss everything you need to know about Kotlin language &#8211; a smarter way to code Android apps.<\/em><\/p>\n<p>Kotlin has been gaining popularity worldwide for a variety of reasons. The language has skyrocketed tremendously since its launch and quickly joined the ranks of the most popular programming languages. Now that Google supports Kotlin for <a title=\"Android app development\" href=\"https:\/\/www.appschopper.com\/android-apps-development-services\">Android app development<\/a> over Java, it has become one of the most sought after programming languages among developers.<\/p>\n<p>Per the <a title=\"PYPL PopularitY of Programming Language Index\" href=\"http:\/\/pypl.github.io\/PYPL.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">PYPL Popularity of Programming Language Index<\/a>, Kotlin is ranked among the top 15 best programming languages in September 2020 worldwide. Additionally, according to <a title=\"The State of Developer Ecosystem in 2020 Infographic | JetBrains: Developer Tools for Professionals and Teams\" href=\"https:\/\/www.jetbrains.com\/lp\/devecosystem-2020\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">JetBrains<\/a>, Kotlin is among the top 3 languages developers are planning to adopt or migrate to. Considering this, many businesses are seeking a skilled <a title=\"mobile app development company\" href=\"https:\/\/www.appschopper.com\/\">mobile app development company<\/a> that can develop a revenue-driven app and help them gain a competitive advantage.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_Kotlin\"><\/span>What Is Kotlin?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>At Google I\/O 2017, <a title=\"Android Developers Blog: Android Announces Support for Kotlin\" href=\"https:\/\/android-developers.googleblog.com\/2017\/05\/android-announces-support-for-kotlin.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google announced<\/a> that it would start supporting a new Android development language: Kotlin. It is an open-source, statically typed programming language that can transpile Java bytecode to run on the Java Virtual Machine (JVM) or Android, combining object-oriented and functional programming features.<\/p>\n<p>Kotlin is developed by JetBrains, a company behind the IntelliJ Java IDE that Android Studio is based on. They designed Kotlin to be 100% interoperable with Java, allowing developers to use any Java libraries and frameworks in Kotlin, and vice-versa.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Top_Popular_AppsCompanies_Using_Kotlin\"><\/span>Top Popular Apps\/Companies Using Kotlin<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a title=\"Is Kotlin a New Era of Android App Development?\" href=\"https:\/\/www.linkedin.com\/pulse\/kotlin-new-era-android-app-development-prashant-singh-sengar\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Is Kotlin a new era of Android app development<\/a>? This question often arises as within a year of launch, Kotlin has been trending as a top-class replacement of Java for Android development. <a title=\"Kotlin and Android | Android Developers\" href=\"https:\/\/developer.android.com\/kotlin\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Over 60% of Android developers are now using Kotlin<\/a>, becoming the fastest-growing language on GitHub in terms of the number of contributors. Some of the world\u2019s most popular apps are built with Kotlin:<\/p>\n<ul>\n<li><a title=\"Google\" href=\"https:\/\/www.google.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google<\/a><\/li>\n<li><a title=\"Pinterest\" href=\"https:\/\/www.pinterest.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Pinterest<\/a><\/li>\n<li><a title=\"Square: Solutions &amp; Tools to Grow Your Business\" href=\"https:\/\/squareup.com\/us\/en\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Square<\/a><\/li>\n<li><a title=\"Trello\" href=\"https:\/\/trello.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Trello<\/a><\/li>\n<li><a title=\"Best Note Taking App - Organize Your Notes with Evernote\" href=\"https:\/\/evernote.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Evernote<\/a><\/li>\n<li><a title=\"Welcome to your new HQ | Slack\" href=\"https:\/\/slack.com\/intl\/en-in\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Slack<\/a><\/li>\n<li><a title=\"Corda | Open Source Blockchain Platform for Business\" href=\"https:\/\/www.corda.net\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Corda<\/a><\/li>\n<li><a title=\"Tinder | Dating, Make Friends &amp; Meet New People\" href=\"https:\/\/tinder.com\/?lang=en\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Tinder<\/a><\/li>\n<li><a title=\"N26 - Mobile Banking the World Loves \u2014 N26 United States\" href=\"https:\/\/n26.com\/en-us\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">N26<\/a><\/li>\n<li><a title=\"Netflix \u2013 Watch TV Shows Online, Watch Movies Online\" href=\"https:\/\/www.netflix.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Netflix<\/a><\/li>\n<li><a title=\"Holiday Lets, Homes, Experiences &amp; Places - Airbnb\" href=\"https:\/\/www.airbnb.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Airbnb<\/a><\/li>\n<li><a title=\"Basecamp: Project Management &amp; Team Communication Software\" href=\"https:\/\/basecamp.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Basecmp<\/a><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_Kotlin_Used_For\"><\/span>What Is Kotlin Used For?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Being a general-purpose programming language, Kotlin can be applied in various ways, for cross-platform mobile, Android, JavaScript, and server-side development. Kotlin also lets developers use popular libraries and frameworks such as ReactJS and VueJS. <\/p>\n<div class=\"show-less\">\n<p>Today, it is most prominently used for Android development. Let\u2019s look at the corresponding sub-projects of Kotlin:<\/p>\n<ul>\n<li><strong>Kotlin\/JVM<\/strong>: Enables writing JVM applications by transpiling to Java bytecode. For example -Android development, Spring services, and desktop applications.<\/li>\n<li><strong>Kotlin\/JS<\/strong>: Allows writing web applications by transpiling to JavaScript. For example, &#8211; React apps and Vanilla JS apps.<\/li>\n<li><strong>Kotlin\/Native<\/strong>: Enables writing applications for embedded devices or <a href=\"https:\/\/www.appschopper.com\/ios-iphone-apps-development-services\">iOS development<\/a>. For example &#8211; iOS apps, microcontroller programming, and others.<\/li>\n<\/ul>\n<p>Kotlin supports multi-platform application development, which enables you to share code between apps for different platforms. The most obvious use case is to share core functionality between the Kotlin Android app and the Kotlin iOS app.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Kotlin_Language_and_Syntax\"><\/span>Kotlin Language and Syntax<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In terms of language and syntax, Kotlin simply aims to be readable, pragmatic, and safe. To fully appreciate what that means, let&#8217;s take a look at the language\u2019s core tenets.<\/p>\n<ul>\n<li><strong>Readability<\/strong> &#8211; Kotlin is supported by language features such as type inference, data classes, and infix functions. Such features enable concise code without sacrificing readability.<\/li>\n<li><strong>Pragmatism<\/strong> &#8211; JetBrains themselves use it to develop their IDEs. Kotlin incorporates industry feedback and addresses large-scale app development issues, crucial for the large-scale enterprise app development Kotlin is frequently used for JetBrains itself uses it to develop its IDEs.<\/li>\n<li><strong>Safety<\/strong> &#8211; Kotlin aims to prevent common app bugs by design. This is accomplished through several language features such as nullable types (to avoid null pointer exceptions) and nudging towards the best practices like designing for inheritance.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Why_Do_Developers_Prefer_Kotlin_Over_Any_Other_Language\"><\/span>Why Do Developers Prefer Kotlin Over Any Other Language?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Why has Kotlin created such a buzz? Why do many developers love it? Why should one choose Kotlin over others? We decided to handpick several answers to all of those questions. Let\u2019s dive in and learn!<\/p>\n<h3>Open-Source<\/h3>\n<p>Kotlin was introduced with the need for more concise language compatible with Java and JavaScript in mind. Instead of keeping it as an internal project, JetBrains decided to open-source it in 2012. Since then, satisfied developers have sparked Kotlin\u2019s meteoric rise through the app development world.<\/p>\n<h3>Lesser Code Writing<\/h3>\n<p>Java requires detailed code writing; the Kotlin compiler, on the other hand, can understand code and write a lot of code itself with ease. It is believed that developers can write 20% less code in Kotlin, drastically reducing boilerplate code. As a result, developers can spend more time on the exciting parts of the coding, leaving Kotlin to manage the routine code itself.<\/p>\n<h3>Backed by Google<\/h3>\n<p>Perhaps the most appealing thing about Kotlin language is that Google backs it. Google&#8217;s support gave life to Kotlin when it declared Kotlin to be the officially supported language for Android at its I\/O annual summit 2017. With Google&#8217;s announcement, many prior fears, such as bugs, unsupported formats, and others, were laid to rest, and developers can now freely develop apps using Kotlin.<\/p>\n<h3>100% Interoperability with Java<\/h3>\n<p>Kotlin and Java are two similar languages that can, fortunately, go hand-in-hand. Kotlin has 100% interoperability with Java, meaning developers can have any percentage of code written in Kotlin, and the rest in Java. If developers have the codes from both Java and Kotlin in the same project, they can compile correctly. In short, if developers are working with Kotlin, they get the benefit of vast Java commands, Java libraries, and Java frameworks.<\/p>\n<h3>Object-Oriented and Functional Language<\/h3>\n<p>Being both object-oriented and functional constructs, Kotlin wins over other languages, which means it can be used in object-oriented and functional programming styles, offering developers great features like high-order functions, function types, and lambdas to explore functional programming.<\/p>\n<h3>Server-Side Development<\/h3>\n<p>Kotlin is not only used for Android development but server-side developments as well. With 100% compatibility with JVMwhile maintaining full compatibility with existing Java-based technology stacks, developers can leverage server-side development using Spring and Vert frameworks.x, Ktor, Kotlinx.html, and more.<\/p>\n<h3>Null Safety<\/h3>\n<p>One of the best features of Kotlin is that there is no NullPointerException. With Kotlin, developers don&#8217;t need to worry about NPEs because null safety is built into Kotlin&#8217;s type system. The Kotlin system refuses to compile code that tries to assign or return null, so developers can catch NPEs at compile time instead of runtime, and eliminate the danger of null references from code.<\/p>\n<h3>Use of Existing Java Frameworks and Libraries<\/h3>\n<p>Kotlin can readily use all existing Java frameworks and libraries. Kotlin programs can use all advanced frameworks too, which rely on annotation processing. Kotlin is an easy-to-integrate language and is frequently integrated with Gradle, Maven, and other build systems.<\/p>\n<h3>Extension Functions<\/h3>\n<p>It is easy to compose functions in Kotlin with extensions and operators. As in C# and Gosu, Kotlin gives developers the ability to extend a class with new functionality without inheriting the class or using any design pattern like Decorator. Extension functions help developers to extend the functionalities of classes without touching the core code.<\/p>\n<h3>Great IDE and Tooling Support<\/h3>\n<p>Kotlin\u2019s excellent support is backed by JetBrains, a company that\u2019s created some of the world\u2019s most used IDEs. With a strong community behind Kotlin\u2019s language and tools, developers can always have support when they need it. Additionally, all of Android Studio&#8217;s IDE features work perfectly in Kotlin.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Kotlin_vs_Java\"><\/span>Kotlin vs Java<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>For many years, Java was the only programming language for Android and server-side development. However, the launch and rise of Kotlin have changed Java\u2019s dominant position. Let&#8217;s take a look at how the two heavyweights stack up against each other.<\/p>\n<h3>Size, Complexity, and Code Quality<\/h3>\n<p>Java requires more code lines, while Kotlin enables developers to accomplish the same tasks with lesser code, making it more expressive. This helps developers make code more organized, readable, and reusable, thus lessening their efforts and increasing productivity. To help manage the quality of code, Kotlin uses type inferencing, eliminating overly tedious syntax that Java developers face.<\/p>\n<h3>No NullPointerException<\/h3>\n<p>Built-in null safety makes Kotlin an obvious leader when it comes to Android development. NullPointerException is one of the major causes of Android mistakes as Java enables developers to assign a null value to an object reference, resulting in Android apps\u2019 crash. Kotlin, on the other hand, offers inherent null safety, which means no variable or object can be assigned with a null value.<\/p>\n<h3>Interoperability<\/h3>\n<p>Interoperability is probably one of the most attractive features of Kotlin. Being 100% interoperable with Java allows writing some parts of code that work seamlessly within Java code, making it much easier to switch from Java to Kotlin during development.<\/p>\n<h3>Coroutine Support<\/h3>\n<p>Whenever developers start a long-running process with CPU intensive operations in Java, the corresponding thread gets blocked. It is possible to create multiple threads but managing them is complex. With Coroutine support, however, developers can create multiple threads to run long processes in Kotlin without thread blocking.<\/p>\n<h3>Delegation<\/h3>\n<p>Java lacks this feature, which makes Kotlin superior in terms of using multiple inheritances. Kotlin allows for a receiving object to delegate operations to a second delegate object, called the helper object, containing original content so that developers don&#8217;t need to rewrite it. The multiple inheritances avoid the duplication of code.<\/p>\n<h3>Compile Time and Performance<\/h3>\n<p>Talking about performance, Kotlin runs as fast as Java. However, the support of inline functions and the use of lambdas allow developers to create apps that run faster than Java code. Java compiles 10-15% faster than its counter partner in clean builds; however, Kotlin works slightly better, thus better handling functional programming.<\/p>\n<h3>Functional Programming<\/h3>\n<p>Java supports functional programming, but only in Java 8, whereas most Android development is done with Java 6 and 7. Kotlin is a mix of functional, procedural programming, which consists of many useful methods like lambdas, higher-order functions, lazy evaluation, and more; most of these methods are not offered for Android developers in Java 8.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Kotlin is safer, stabler, more reliable, and faster, eliminating null reference errors, enabling extension functions, supporting functional programming, and adding coroutines. With big market players like Google, Netflix, Pinterest, Evernote, Airbnb, and Trello using Kotlin, it\u2019s no wonder why both developers and companies are gravitating to Kotlin in droves.<\/p>\n<p><em>We would love to hear your comments relating to the post. Got some other thoughts? Drop us words through our\u00a0<a title=\"Contact\" href=\"https:\/\/www.appschopper.com\/contact\" target=\"_blank\" rel=\"noopener noreferrer\">contact page<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\">6<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span> Table of Contents What Is Kotlin?Top Popular Apps\/Companies Using KotlinWhat Is Kotlin Used For?Kotlin Language and SyntaxWhy Do Developers Prefer Kotlin Over Any Other Language?Kotlin vs JavaConclusion You may have just recently started hearing about the Kotlin programming language, but developers have known about &#8212; and loved it &#8212; for a while. In this blog, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9425,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jnews-multi-image_gallery":[],"jnews_single_post":[],"jnews_primary_category":[]},"categories":[8],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.7.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What Is Kotlin? Know All About Kotlin Programming Language<\/title>\n<meta name=\"description\" content=\"Are you looking for a smarter way to build an Android app? Then you must know about Kotlin! 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