Kotlin allows for smart typing, sometimes called implicit typing, where it automatically detects the data type of a variable without explicit tagging. Kotlin version 1.3+ removed inputs and outputs from main to make a simpler and less visually cluttered syntax. Transition to Kotlin in half the time with lessons tailored to your current developer skills. Educative’s hands-on courses let you learn the tools you need to advance your career without starting back from square one. Kotlin is mainly used for Android app development or front-end development with frameworks like React.

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Moreover, managing and updating the UI is easier and more reliable. This is a Kotlin Multiplatform Mobile way of developing UI . That being said, leading tech companies like Atlassian, Uber, and Pinterest had already started using Kotlin for Android app development long before it was officially supported. The value of read-only variables cannot be changed after they’ve been initially assigned. Read-only variables are especially helpful in reducing side effects when using functional programming.

What is the current version of Kotlin?

For example, Kotlin’s type system is a lot like that of Java, which means that developers can easily convert their existing code into the new language if they want to try it out. Kotlin is a mature technology that has been in development since 2011 and was designed to solve particular problems that older technologies could not address. This makes it very well suited for enterprise applications, as it was created for use in the enterprise space. It’s also been tried and tested by many app development companies in a variety of applications. Developed by JetBrains, Kotlin is an open-source, statically-typed programming language for JavaScript and Java Virtual Machine .

Kotlin developer meaning

Also, it works on JVM, and java libraries work fine on Kotlin. Then in the year 2012, Kotlin’s first web demo was released along with a new logo and became an open-source language. The development of the Kotlin language was announced in the year 2011. Get exclusive info about community events, free resources, scholarship opportunities, and more… CodeOp is a tech school that offers courses for women, trans and non-binary people (women+). We’re dedicated to changing the culture of tech and focus on providing our community with the support and training they need to become leaders in their field.


You can perform the same tasks and implement the same features with the help of Kotlin and Java. However, Kotlin allows achieving the same results with fewer lines of code, which positively influences code maintainability and readability. The main advantage of Kotlin in Android development is the compatibility with JDK 6, which means that developers can develop solutions for older devices. Other reasons why many Android developers turned to Kotlin include high performance, interoperability, tiny runtime library, and fast compilation. Till the introduction of Kotlin in 2016, all Android applications were written with the help of Java. And no one even suspected that they needed a substitute for a language with many years of rapid growth.

Beginners never really understand what the difference is , but to add to the confusion, they are also told to always start a thread with the run method, never to use the start method. After all, it does not matter, you should not start a thread manually anyway, it is too expensive, rather use a thread pool. Kotlin still decompiles to Java, and its language features are based on what’s available in the current version of the JVM supported by Android. Since Android doesn’t use the newest iteration of Java, Kotlin developers have to find workarounds for implementing some features. Apart from developing Android apps , Kotlin is also valuable for JVM development.

What Is Kotlin and Why Use It In Programming?

Java was released in 1995 by Sun Microsystems, which is now a property of Oracle, and most of its features are available in open source. It’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. Kotlin splits business logic and user interface, allowing to create fully native UI and app appearance. The programming language allows developers to use already written code and modify it for iOS.

Contrarily, developers need to define the constructor, getter, and setter methods in Java to create data classes. Afterward, the Kotlin compiler creates constructor, getter, and setter methods automatically. Kotlin is also a popular choice for developing microservices, as well as data science applications.

  • Based on the dozens of completed projects, there are lots of ready-made solutions and open-source libraries for Java development.
  • Faster development times and reduced costs thanks to Kotlin being a much more concise language than Java, meaning you can write less code and achieve the same results.
  • Developers need to track down all nonexistent exceptions to handle them or declare that such exceptions can be thrown, which takes quite a lot of time.
  • In 1949, Assembly Language was first used to simplify machine code, which was necessary for instructing computers.

The learning curve won’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. It’s an object-oriented programming language supported by the Java virtual machine and Java libraries. Safe and modern programming language that’s easy to pick up. No matter your skillset, Kotlin’s goal is to provide programming language aimed to make developers happier. Ana Lastovetska is a technology writer at MLSDev, a custom software development company in Ukraine.

What is Kotlin?

It’s best practice to use read-only val variables whenever possible and only use mutable var when you specifically need it. This minimizes the overall complexity of your programs and makes it easier to understand their data flow. Modern companies are particularly interested in Kotlin’s versatility because developers can use the same language for any project the company needs. Kotlin does not support implicit conversion of data types, which means smaller data types do not convert to larger data types. Developers need to create a new class and parent class to add this feature. For example, it doesn’t have as much support from the Android community as Java does.

Kotlin developer meaning

Kotlin allows local functions to be declared inside of other functions or methods. Semicolons are optional as a statement terminator; in most cases a newline is sufficient for the compiler to deduce that the statement has ended. This is considered to be the first officially stable release and JetBrains has committed to long-term backwards compatibility starting with this version. The web site has a bunch of online resources, including Kotlin Digests by community members, a newsletter, a podcast and more. Some of them we have reviewed and can recommend to start with.

This site is the official documentation for the language, and we need to be able to ensure that all the information here is correct and up-to-date. Doing this with a language that no one on the team speaks isunfortunately not feasible at this time. Examples might be simplified to improve reading and learning. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.

Kotlin developer meaning

This example shows how we can turn our method into a non-blocking function that is able to be suspended. The thread executing this code snippet will not do any other work until the function returns, which in case of an API or database call could be a couple of seconds. We really don’t want to block our thread while waiting for another service so let’s turn this function into a non-blocking one. My second favorite part in a simple Java POJO class is the overridden equals() and hashCode().

The language improves on Java aspects that previously made Android development time-consuming. Kotlin is faster and can compile code in fewer lines than Java. Since the smart cast is Kotlin developer job not available in Java, developers need to perform two separate functions. The first function checks the variable type and the second function casts the object to the target type.

Voice or speaker recognition is the ability of a machine or program to receive and interpret dictation or to understand and perform spoken commands. Enterprise IT environments that feature Android devices need personnel with a knowledge of Kotlin to perform unified endpoint management. Take a look at this compilation of device management tools and services that help companies manage Android implementations. Although the two languages are similar by design, there are some key differences.

Sharing code between JVM and JavaScript platforms feature was newly added to this release (as of version 1.4 multiplatform programming is an alpha feature upgraded from “experimental”). A full-stack demo has been made with the new Kotlin/JS Gradle Plugin. Share application logic between web, mobile, and desktop platforms while keeping an experience native to users. Kotlin is simpler, making it easier for beginners to learn. Kotlin focuses on stripped-down, functional code and avoids repetitive boilerplate code. Semicolons at the end of every line are not needed, although Kotlin does not have an issue if a developer uses them.

Thanks to high-performance features like coroutines and the ability to make use of Java libraries, Kotlin makes an excellent language for back-end development. Another major advantage of Kotlin and Ktor is the extensive testing https://wizardsdev.com/ libraries and frameworks you can use. The Junit framework works like a charm with Kotlin, and Ktor adds on top of this its own testing library that allows you to write end-to-end tests and integration tests in no time.