Kotlin Vs Java : which is better Kotlin or Java

You are here:
Estimated reading time: 2 min

In this Kotlin tutorial, we will learn about Kotlin vs Java, more specifically advantages of Kotlin. We will be learning 

What is Kotlin? 

Kotlin is a general purpose language which supports both functional programming and object-oriented programming paradigms. Kotlin is a statically typed language like Java. However, in Kotlin you can omit the types, and it often looks as concise as some other dynamically-typed languages. 

Who developed Kotlin? 

It’s an open-source project developed mainly by JetBrains with the help of the community. It’s really started to take off recently, but it’s actually been around since 2011, open-sourced in 2012. Kotlin 1.0 was released in 2016. 

Kotlin vs Java: 5 super benefits of Kotlin

  1. Nullability : Kotlin has increased null safety by differentiating between nullable and non-nullable types. Null pointer exceptions are bad. They have been responsible for a huge financial losses, spectacular computer crashes and uncountable hours of debugging madness. To make our life a lot more enjoyable and safer, Kotlin distinguishes between nullable and non-nullable data types, and this eliminates many errors at compile time.
  2. Concise: Kotlin code is very, very concise. For example, boilerplate code is code that we have to type, and that doesn’t actually affect the way our app works. Helpfully, Kotlin takes care of the boilerplate code for us. Kotlin does remove a lot of boilerplate from code.
  3. Readability: Kotlin was also designed for readability, and that means code always stands on its own without any hidden side effects.
  4. Fully Compatible with Java: Kotlin compiles so that you can use Java in Kotlin side by side this means you can continue to use your favorite Java libraries. Every Java library, every Java framework can be used from Kotlin.
  5. Supports both OOP and Functional Programming: Kotlin has both object and functional constructs. Speaking of which, how many trivial getters and setters have you written for encapsulating the code? Well, never more. In Kotlin no need for getters and setters, the compiler does it for you and without errors. Kotlin also supports Lambdas and Higher Order functions.

For Example:

In Java

public class Goal {
    private int id;
    private String description;
    private boolean isCompleted;

    public int getId() {
        return id;

    public void setId(int id) {
        this.id = id;

    public String getDescription() {
        return description;

    public void setDescription(String description) {
        this.description = description;

    public boolean isCompleted() {
        return isCompleted;

    public void setCompleted(boolean completed) {
        isCompleted = completed;

But in Kotlin it can be done in just One Line, like this: 

class Goal(val id : Int, val description : String, val isCompleted : Boolean)

Is Kotlin for Android development only? 

To put it simply “NO” kotlin is not android only. Kotlin is used on server side language in many projects. In fact, in any Java project you can use Kotlin. Kotlin is officially supported by Android and Google is one of the major reasons of its growing adoption. Kotlin supports Different target platforms.

Was this article helpful?
Dislike 0
Views: 33