What Is Kotlin And Why Should You Care? Opportunities For Everyone


Kotlin is a statically typed programming language that targets JVM, Android, JavaScript, and Native. Kotlin is developed by JetBrains. The name comes from Kotlin Island, near St. Petersburg. Kotlin was first announced in July 2011, and the first beta was released in February 2012. Kotlin 1.0 was released in 2016.

Kotlin is a Java-compatible language that is interoperable with existing Java code. Kotlin is a safe language that eliminates null pointer exceptions. Kotlin is a concise language that reduces boilerplate code. Kotlin is a powerful language that gives developers more control over type inference, higher-order functions, and operator overloading.

what is kotlin and why does it matter
what is Kotlin and why does it matter

What is Kotlin?

Kotlin is a new programming language that was created by JetBrains. Its main purpose is to make development more fun and easier for developers, while still providing the same level of functionality as other languages.

Kotlin is especially popular among Android developers because it's designed specifically for the platform. It eliminates the need to learn multiple languages to create apps for different platforms and makes it easy to maintain code quality across different app versions. 

Kotlin also has strong support for reactive programming, which allows you to write code that reacts quickly and efficiently to changes in the environment. This makes it perfect for developing complex applications that need to respond rapidly to user input. Besides making apps more efficient and faster to develop, Kotlin also offers some unique features that make it stand out from other languages. 

For example, Kotlin supports Null Safety, which means that you can't create strings that contain null values. This prevents potential errors in your code and ensures that your app runs smoothly even when there are unexpected errors.

Kotlin is a new programming language that's designed to ease the development process for developers who are already familiar with Java. It is fast, concise, and easy to read, which makes it perfect for developing mobile apps and other software applications.

Overall, Kotlin is a promising new language that has the potential to revolutionize the way we develop software applications. If you're interested in learning more about it or using it in your next project, check out some available resources.

How Kotlin Can Help You Write Better Code

Kotlin is a language that helps developers write better code. It is statically typed, meaning that errors are caught at compile time rather than at runtime. This can save you a lot of time and frustration when you are trying to debug your code. Kotlin also has null safety, which means that you can avoidNullPointerException errors.

Which one is a better choice for Android App Development
Which one is a better choice for Android App Development

Kotlin Features

  • Efficient & Qualitive Code
  • Java Interoperability
  • Open Source Technology
  • Extensive Extensibility Features
  • No runtime Overhead
  • Analog to Swift
  • Compiles to JVM bytecode
  • Compiled to Javascript
  • Kotlin compiler: Fail-fast Approach

Java Features

  • Platform-Independent
  • Object Oriented
  • Large Community
  • Secure & Robust
  • Dynamic
  • Multithreaded
  • Neutral Architecture
  • Portable
  • Just-in-time-Compiler

Differences Between Kotlin and Java

Differences Between Kotlin and Java
Difference Between Kotlin and Java

Kotlin is a new programming language that has been gaining popularity in recent years. Kotlin is a statically typed language that is compatible with Java and can be used to develop Android applications. 

Kotlin is a concise and expressive language that is easy to learn and can be used to write code that is more readable and maintainable than Java. 

Kotlin also has a number of features that Java does not, such as null-safety, data classes, and lambdas. Kotlin is an open-source language that is backed by JetBrains and is being adopted by many companies, such as Google, as an alternative to Java.

Kotlin vs Java - Cons

Kotlin Cons

  • Limited Android API Design
  • High Risk of Errors
  • Slow Language
  • High Memory Consumption

Java Cons

  • Challenging and Concise Syntax
  • Slow Compilation Speed
  • Limited Learning Resources
  • Highly Declarative Language

What does Kotlin Have that Java does not?

  • String templates
  • Singletons
  • Null-Safety
  • Extension Functions
  • Smarts Casts

What does Java have that Kotlin does not?

  • Static Members
  • Primitive Types that are not classes
  • Non-private fields
  • Wildcard
  • Checked exceptions

Setting Up Kotlin

Kotlin is a statically typed programming language that targets JVM, Android, JavaScript, and Native. Kotlin is developed by JetBrains. Kotlin was first introduced in 2011, and the latest stable release is 1.3.72. Kotlin is open source and free to use. 
  1. To get started with Kotlin, you need to install the Kotlin plugin for your IDE. 
  2. The Kotlin website provides detailed instructions for IntelliJ IDEA, Android Studio, and Eclipse. 
  3. Once you have installed the Kotlin plugin, you are ready to create your first Kotlin program
Kotlin is a very versatile language and can be used for a wide variety of tasks. 

Kotlin Hello World Example

Kotlin is a great language for beginners because it is concise and easy to learn. A "Hello, World!" is a simple program that outputs Hello, World! on the screen.
In this guide, we will show you how to create a simple "Hello World" Kotlin program. 

Let's explore how the "Hello, World!" program works in Kotlin.
// Hello World Program

fun main(args : Array) {
    println("Hello, World!")

When you run the Kotlin program, the output will be:
 Hello, World! 

Comparing With Java "Hello, World!" program

As you know, Kotlin is 100% interoperable with Java. Here's an equivalent Java "Hello, World!" program.
 // Hello World Program

class HelloWorldKt {
    public static void main(String[] args) {
        System.out.println("Hello, World!"); 

FAQ related to Kotlin

Q.1 How much do Kotlin developers make?

Ans. The average annual salary for a Kotlin developer is around $130,000.

Q.2 Does Kotlin work only for Java?

Ans. Kotlin is supported by all major Java IDEs including IntelliJ IDEA, Android Studio, and Eclipse. In addition, a command line compiler is available and provides straightforward support for compiling and running applications.

Q. 3 Is Kotlin better than Python?

Ans. Both Python and Kotlin may be used in backend development, but in mobile development (Android), Kotlin has a significant advantage over Python. Kotlin language has Google's backing it's faster to compile and it has built-in null safety support. All java libraries are compatible with Kotlin.

Q.4 Why is Kotlin not popular?

Ans. Java Developers think “Kotlin is too complicated.” As they get more comfortable with the language, they'll likely push some features (e.g. extensions and inline functions) too far, making the codebase impenetrable to newcomers.

Q.5 Can I make games with Kotlin?

Ans. Yes, Kotlin programmers can Create Games Using Kotlin with the LibGDX Game Development Framework.

Q6. Can I learn Kotlin without knowing Java?

Ans. If you don't plan on Android, you should have one language understood before learning Kotlin as the courses are not the greatest so that language helps you understand things better. But, it doesn't need to be Java.


Today, Kotlin has emerged as the best choice for android and web development. Compared to other JVM-based languages, it offers better readability and safety. It is not only faster but also easy to write advanced apps with just a few lines of code in Kotlin language.

So if you wonder whether it is better than Java or not, then we can safely say Yes! In fact, some renowned companies like Netflix started using this new language for their projects in 2017.

Not everyone is a fan of Kotlin. Some programmers hate it because it does not have type-safety and nullability (how can we be sure that our code won’t crash when there are no values to return?).

But others use Kotlin without negative feelings because they know that the language has its own set of benefits which makes writing Android apps easier than ever before.

We cannot say which one suits you best, so test both and see what works for you!

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