Java vs Kotlin: which is better?

Published: 2022-02-15 08:03:49

Welcome to the battle of programming languages!

Picking up the best programming language has always been a tough job for a programmer. Tough but not impossible though.
Hard work is important but not enough at times, you need to know smart work as well and this write-up will help you in doing that for sure. 

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## Are you someone who wishes to look through Java vs Kotlin performance in every detail?

Searching some scholarly books on Java vs Kotlin Android Development but couldn’t find the ideal one? Want every detail on Java vs Kotlin performance, so that you can make the right decision for your project but feel lost because of lack of guidance? 

Relatable enough? If it’s a yes from your end, then you must read the article till the end. It will help you and that’s the promise from our end!
So let’s see who wins the battle then!

# Java vs Kotlin: which is better? – All you need to know!
If I ask you which is better between ink pen and dot pen, you will have to think of some of their features separately, right? Then you will be able to compare them and give an answer.

It’s the same in the case of programming languages as well. 
To answer, Java vs Kotlin: which is better? - We need to talk about both Java and Kotlin separately first and then compare them to have a proper and fair conclusion. 
 Let’s start then!

## Java: 

Sun Microsystems, which is now owned by Oracle, created Java, an object-oriented programming language. Java is a very old programming language that can do a lot more than just create Android apps. 
As a result, if you know Java, you'll have a lot more work options. It's possible that you won't always wish to design Android apps. 
Java allows you to extend your wings a little wider. But, if you're specifically interested in Android app development, let's speak about the advantages and disadvantages of Java.
Advantages of Java
It is simple to learn and comprehend in nature as well.
It's suitable for both native and cross-platform apps. Isn’t it great?
Because Android is based on Java, there are a plethora of Java libraries at your disposal.
Java also has a large open-source community.

Even when compared to Kotlin apps, Java apps are lighter and more compact, resulting in a speedier app experience.
Java also speeds up the development process, allowing you to write more code in less time.
Great! now you know why exactly you should go for it!
But every coin has two sides, right? Similarly, Java has some disadvantages as well. 
If you want in-depth knowledge of Java vs Kotlin Android Development or are curious about knowing Java vs Kotlin performance difference, then you must look for both pros and cons of Java as well as Kotlin.
You are already aware of the advantages of Java, right? Now let’s move to the cons part then!
Disadvantages of Java:
Because Java is a type-heavy language, you'll be writing a lot more code, which increases the likelihood of errors and defects.
Because of its inherent restrictions, Java has certain issues with Android API design.
Java uses more memory than other languages, and as a result, it is slower.
You are done with Java now! 
Now you will talk about Kotlin, its pros, and cons. After that, we will compare these two languages. Let’s go to the next part then!

## Kotlin:

When Android development required a more current language to supplement Java's capabilities, Kotlin was born. Kotlin was built by JetBrains, it is the same company that created Intellij. 
It is a statically typed, open-source language based on the Java Virtual Machine (JVM). 
The benefit of Kotlin is that it can be compiled into JavaScript and used alongside Java. This allows developers to not only adapt existing Java apps to Kotlin but also to continue working in Java.
Kotlin’s advantages:
Kotlin facilitates the creation of clean APIs.
Thanks to Java bytecode, you can use Java libraries and frameworks in Kotlin, making the transition from Java to Kotlin a breeze.
The type system in Kotlin includes the much-needed null, which was missing in Java. The absence of a value in Android is represented by null, and Kotlin allows you to use null, greatly alleviating that pain point.

Kotlin’s disadvantage: 

In most cases, Kotlin takes longer to compile than Java, though it does surpass Java in a few scenarios.
Because the Kotlin community is still new and learning materials are scarce, finding solutions to difficulties can be challenging. 
Finding experienced developers who can act as mentors for your team can be tough because Kotlin is still relatively young. Everyone out there is still learning and experiencing it for the first time.
In comparison to Java, some functions of Android Studio, such as auto-complete and compilation, run slower in Kotlin.
Still confused? Want further argument on- Java vs Kotlin: which is better? Relax, we are here for you.

# Are you ready for a quick comparison between Java and Kotlin?

## Reasons you should go for Java and not Kotlin:

Java's verified exceptions are still a widely desired feature among developers who want to write strong programs with error recovery. Although Kotlin does away with them to assist code conciseness, many developers still prefer it.
While static members are not supported in Kotlin, Java constructs a single instance of the static member shared by all class instances. The keyword static denotes that the member with which the keyword has been used is a member of a type rather than an instance.
Wildcard types can be used to specify the type of a field, parameter, or local variable, among other things. While Kotlin lacks wildcard types, Java allows developers to add functionality by using this type of system.

## Reasons you should go for Kotlin and not Java:

 In Kotlin, extending a class is as simple as prefixing the name of the function being created with the name of the class that needs to be extended.
NullPointerExceptions are one of the most common problems that Java developers confront. it could be solved in Kotlin for Android developers by making all types non-nullable by default.
Unlike Java, Kotlin allows developers to manage redundant casts automatically, without needing to check type or cast within a statement.
A data class is a state-only class that does not perform any operations. The most important benefit of employing them is that they generate a significant volume of auto-generated code.
Kotlin, unlike Java, offers distinct interfaces for working with collections. Accessing data is handled by the simple collection interface, whereas changing data is handled by the MutableCollection interface.

# Which programming language should win the race then?
Java vs Kotlin: which is better? – sounds like an easy question with a simple answer of yes or no right?
Well, it’s not the case as both have some plus as well as minus points.
What about the fact that Java has been around for nearly two decades?
 Java is the language on which Android is based. it has long been a favorite among Android developers.
So, yes, Java has a place, and it is difficult to compete with. So, which language should you study first?
In reality, the solution is complex. It depends on you. You need to consider the pros and cons and decide accordingly. 
The benefits of Kotlin for Android developers are the way of the future. Kotlin is becoming the official Android programming language for many companies.
Switching totally to Kotlin at once can be jarring, so it's best to ease into it. However, because Kotlin is the new official language and will be extensively adopted in the future, studying it today is a good idea. 
Though Java will remain a popular language for a long time and is unlikely to be completely replaced shortly, you will need to be familiar with it. However, if you already know Java, Kotlin is the language of the future, and you should learn it.

## To conclude,

It’s not easy to give a straight answer to a question like – Java vs Kotlin: which better? As it depends on the user hugely! 
At the same time, some detailed information regarding both of the languages, their uses, the advantages and disadvantages that they have or how they differ from each other, will guide you to find your better language.
And your better might be different than my better! 

Java is the backbone of the programming world and on the other hand, Kotlin is a newcomer, gaining popularity day by day. 
One has to start with Java to clear the basics but the learning doesn’t stop here. Do you want to be an advanced programmer? Then learning Kotlin will help you for sure. 
So, it’s you who has to make the final call keeping in mind all the detailed information about Java as well as Kotlin.