Programming languages are the foundation for any application. To develop a software or application, you need to be well versed in different languages like Java, Python, PHP, etc. One of the popular programming languages is Kotlin. In this article from the chair site, I will tell you what the Kotlin language is and what are its basics.
Kotlin is a statically typed general purpose programming language with type induction (automatic detection of a data type). Widely used for Android application development. Kotlin was designed to fully handle Java, and the JVM version of its standard library is based on the Java Class Library, but type inference allows for a more concise syntax. Kotlin is primarily targeted at the JVM but also combines JavaScript with basic code. Kotlin is sponsored by JetBrains and Google, through the Kotlin Foundation.
Now, let's dive into this article and learn about the unique and various features of the Kotlin programming language.
Kotlin features
The reason for the popularity of this language is due to the unique features that it possesses. Let's not get into the details of the various features.
Conciseness: Kotlin is more concise than Java and you need to write about 40% fewer lines of code than Java.
Interoperability: The Kotlin programming language is highly interoperable with Java. You will never find any difficulties using Kotlin in a Java application.Feature-rich: Kotlin provides many advanced features such as operator overloading, Lambda expressions, string templates, etc.
Ease: A language that is as easy to learn as a programming language. If you have a background in working with Java, you will find learning Kotlin easy.
Less error prone: As I mentioned before, Kotlin is a statically typed programming language, which makes you able to catch errors at compile time, where statically typed programming languages do type checking at compile time.
So, these are some of the features that add to the popularity of the Kotlin programming language. Let's now take a look at the different platforms on which you can write code and develop your own Kotlin applications.
Kotlin IDE's
Kotlin
As shown in the figure above, you can either use Eclipse, IntelliJ, or Android Studio to develop applications. But I'm using IntelliJ IDEA because it's the platform mainly designed and developed for Kotlin and the feasible IDE.
With that said, let's move on further and learn how to run your first Kotlin program.
How to create your first Kotlin program
First, you need to install the latest version of IntelliJ IDEA. Kotlin comes bundled with recent versions of IntelliJ. You don't have to install any plugin to run Kotlin programs.
The following steps help you create a new Kotlin project and run it in IntelliJ.
Step 1: Create a new project by selecting “Create a new project” on the welcome screen or go to File → New → Project. Choose Kotlin from the left menu and then Kotlin / JVM from the options on the right side
Step 2: Choose the name of the project and where to store it, and specify the Java version (1.8+) in the Project SDK. Once you have entered all the details, click on “Finish” to create the project. The generated project looks like this:
Kotlin
Step 3: Now let's create a new Kotlin file. Right click on src folder → New → Kotlin File / Class. A prompt will appear where you will need to provide a name for the file. Let's call it eg example.kt
Step 4: Now let's write a simple Kotlin program as shown in the image below.
Kotlin
Now, let me explain to you the terms in the program written above.
fun main (args: Array )
{
println("Welcome to Kotlin Language")
}
First line: Functions are the basic building blocks of this program. All functions in Kotlin begin with the fun keyword followed by the function name (main), a list of zero or more comma-separated parameters, an optional return type, and a body. The main() function takes one argument - a string.
The third line: println() is used to display jquery on the output screen. Note that you can directly use println() to print to standard output. Whereas, in Java, you need to use System.out.println().
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What is Kotlin?
With Java's indisputable notoriety as a programming language, it was found that Android wanted an advanced language to compete. Kotlin filled this hole once it was announced as the official Android development language. Therefore, I am writing these points in order to help you identify the main differences between them.
Kotlin is a statically typed programming language used in the Java Virtual Machine (JVM) and JavaScript. The Kotlin project was born out of aspiration to increase production.
Kotlin is officially supported by Google for mobile development on Android. Since the release of Android Studio 3.0 in 2017, Kotlin has been included as a replacement for the standard Java compiler.
It is also described as a general purpose language.
Kotlin provides functional features to support interoperability in Java.
It helps to improve the programming experience in a practical and efficient way.
The advantage of Kotlin is that you can compile it into JavaScript and run it with Java.
It is supported by leading IDEs and compatible with Java version 6 or 8.
Speaking of the importance of this language, it is the most supported JVM language in the Android ecosystem, other than Java. With Kotlin, you can write significantly less code when compared to Java. A few lines of code mention smaller file sizes for Kotlin, compared to the Java equivalents.
What is java?
Kotlin
Java is one of the a
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