Kotlin Or Java: Which One Wins In The Race of Android App Development?

Kotlin Or Java

When it comes to android app development for mobiles, the main confusion that developers come across is the choice of programming language. Each language has a variety of services and specialties to offer. At such times, selecting a programming language that best suits the development procedure and the target audience is highly crucial. A programming language decides the lookout, functioning, and performance of an application. For an application to succeed in times of elevated competition like these days, choosing the right programming language is very important. A programming language generates different types of outcomes using a bunch of instructions. 

Different programming languages work on different principles. For example, specific languages use imperative format while others utilize a declarative form. In the declarative form, the output is inevitable, but the techniques used to obtain it are not specified. Programming languages like Swift, Python, Java, C, Dart, etc., are widely used by developers worldwide.


Proclaimed as the second official android development language by Google I/O, Kotlin was developed by JetBrains. Being in perpetual partnership with Google Cloud Platform and Gradle and Spring Framework, Kotlin is known to make the application development procedure easy and quick. Various android app development solutions are based on Kotlin developers. Android application development company seek Kotlin developers to execute their app development. Android application developers prefer Kotlin over other programming languages. Developers get to see a higher employment rate in Kotlin development services. Android app development solutions are easy to navigate via Kotlin.

Kotlin can seamlessly use the already available Java framework and libraries. It is easy to learn, has approachable technology, and can be compiled with JVM bytecode effortlessly. Java can easily be converted to Kotlin, and codes can be analyzed quite simply. 


Java was created by Sun microsystems. Various android app development solutions prefer it because of the fact that it is highly compatible with almost all types of devices and operating systems. Be it Windows, Linux, or any other operating system, and Java is compatible with almost all of them. Java has a humongous community of developers and employees.

Java can unravel critical issues with much ease. Learning this programming language is a piece of cake for those who are determined. Java offers an independent platform for its users. With the facility of reusable codes and creating modular programs, Java is seen as one of the best programming languages. It also includes benefits in the form of high security, network-centric programming, and high-performance efficiency. In addition, Java comes up as a user-friendly program.

Kotlin vs. Java: What’s The Distinction?

Kotlin has just arrived and is a new programming language that way. It provides the developer with modern features and is a steady and defined language. On the other hand, Java is object-oriented, and apps developed in Java hold the capability to run programs on various devices or platforms. This means you can write the program inc and run it on multiple platforms. To understand Kotlin vs. Java, which is better, you need to admit certain features that both Kotlin and Java lack as compared to each other.

Java: A Step Ahead of Kotlin

Java has some features that Kotlin does not include. Since both are independent languages, it is inevitable to jot address the differences that one holds and the other one doesn’t. Android app development solutions are after these vast differences between the two languages. So let’s take a look. Following are the features that Java has, but Kotlin does not:

  • Exceptions: in Kotlin, one needs to IO exceptions every time they attach a string. While in Java, these exceptions are already checked.
  • Fundamental types: there is no inheritance to the exhibition class, but similar methods and techniques are followed. A resembling factory process is also present.
  • Steady members: Java has a set group of classes. Java allows only nested classes.
  • Private and none private fields: in Java, private fields are used because the allowance of accessing private fields is only inside classes.
  • Wildcard types: Java uses wildcard types of arguments. This makes the approval of assortments from similar subtypes easier.

Kotlin: What Does Java Lack?

As discussed earlier, both languages carry features that are inconsistent with the other one. Here are certain features that are characteristic of Kotlin but are unavailable in Java:

  • Extension: Kotlin has a provision for the extension of classes. It can be done without an inheritance from the class. Extension functions are a special characteristic of Kotlin not found in Java.
  • Null Safety: “the billion-dollar mistake” code’s references are eliminated by Kotlin.
  • Smart cast: if the variable is not modified between the check and usage, they are acceptable to local commissioned equity and local variables.
  • String templates: strings are steadfast characters that the indexing process can access.
  • Template expressions were nothing more than snippets of code used to evaluate the result and are frequently employed in string literals. A template’s expression begins with a dollar sign.
  • Primary constructors: the class header contains primary constructors. It follows the class name and the kind of parameter which is optional. These cannot include any code.
  • Inferring the type of a variable or a property: this feature is extensively present in Kotlin. Kotlin doesn’t maintain the distinction between characters. Here, everything is an object. Member functions and properties in Kotlin can be called on any variable.


We have distinctively made a comparison between the most famous and widely used programming languages- Kotlin and Java. The long list of features of Kotlin indicates that it has the edge over Java. It provides the developer with various beneficial traits such as security, compatibility, syntax, functional programming. Kotlin vs. Java for Android development 2021 has now been concluded with the right facts stated above. There is no need to reach out to the android app development solutions to get an extensive comparison study of Kotlin and Java. We have tried to cover up pretty much everything under this blog.