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Post By Admin Last Updated At 2022-03-25
What's the Difference Between Kotlin and Java in 2022?

java vs kotlin


Developing Android apps is a terrific way to boost your company's performance. The real problem, though, is picking which coding to employ. For many of us, it is self-evident that Java is the greatest since it is widely used and praised. When it comes to establishing an Android app project, choose between Java and Kotlin. It has become one of the most important choices that clients and IT firms must make. Through constant development and re-invention, Java has been able to withstand all tech trends. But, the times are changing, and so are the IT industry's attitudes. The most recent buzz is about Kotlin. So, it is becoming a popular language for Android development. Both languages have their place in the world of Custom Android App Development Services. Furthermore, given by IT firms on a worldwide scale.

Java is an object-oriented programming language. Programs and apps operate on a JVM. So, this allows us to run the same program on many platforms, systems, and devices. Kotlin is a brand-new programming language with several cutting-edge capabilities. Also, to be a statically typed programming language. Kotlin is also a dynamically typed language. Kotlin is a fantastic option for server-side application development. Since it enables users to create succinct and expressive code.

We'll compare two prominent programming languages, Java and kotlin, in this post.

The discussion between both has raged on for far too long. So, we've compiled a list of the key distinctions, features, applications. So you can distinguish between them.

But first, let's figure out what Kotlin is as well as "What is Java?"

What is Java?

Java is an OOP language that was first used in 1995. Sun Microsystems, which was eventually bought by Oracle, created Java. We must utilize applets inserted as a plugin. This is not recommended, if we wish to execute an application in the browser. As a result, it is mostly employed in the creation of standalone apps or back-end systems. it was created by James Gosling, and OpenJDK was the most popular implementation. Because Android is in it. So, most developers choose it for Android application development.

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Why did you choose Java?

Despite the fact that Java is no longer the sole language for Android development. It is far from the only option for web programming, it stays up with the competition. And, because it's not only because of its age, let's look at the benefits it has to offer. Another advantage of it is that it is scalable, reliable, and secure. This is the reason; it's extensively utilized.

It is simple to learn.

It's a fantastic development tool.

It's completely free.

What is Kotlin?

Kotlin is a new programming language created by IDE Jet Brains engineers. It has certain current features. So, it is an open-source language that originally surfaced in 2011. It officially releases in 2016. Kotlin is a static-type programming language like Java and C++. So, it runs on the JVM. But, it can also turn into JS, Android, and Native for use on iOS. Kotlin has a low learning curve and is compatible with current stacks. It's simple to go from Java to Kotlin since we do need to install a plugin. During the Google I/O keynote, Kotlin is an official support language for Android app development.

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Why choose Kotlin?

Kotlin is a programming language that is contemporary, compact, interoperable, and secure. It allows you to develop a server-side application in a more efficient manner. We can utilize our favorite frameworks and libraries with it. So, it is compatible with the Java environment. You may also save effort and time using it.

New JVM features, such as string concatenation through in dynamic, are there.

KMM projects have improved performance or exception handling.

Path("dir") / "file.txt" are experimental JDK path extensions.

Kotlin's Features

Here are some of Kotlin's key characteristics.

Trimmed Coding is available.

Kotlin makes use of the JVM. It combines the benefits of OOPs with functional programming.

Allows for quick compilation.

Without modifying the code, Kotlin can support many extension functions.

You may use an IDE or the command-line interface to write Kotlin code.

Smart feature casting may help you save money on your app. But, while also improving its speed and efficiency.

Java's Features

The following are some of its most essential features.

Create a single piece of code that can execute on any computer platform.

It is for the development of object-oriented applications.

It's a multithread language with memory management built-in.

Because it is network-centric, it facilitates distributed computing.

Kotlin's History

The following are significant milestones in Kotlin's history:

Kotlin v1.0 has a release date in 2016.

In 2017, Google announced first-class support for Kotlin in Android.

The introduction of coroutines for asynchronous programming was in Kotlin v1.3. It has publication in 2018.

Kotlin acts as Google's recommended programming language for Android app developers in 2019.

Java's History

The following are significant dates in the history of the programming language.

OAK was the original name for the programming language. It was originally designed to handle portable devices and set-top boxes. Oak was a colossal flop.

Sun renamed the language "Java" in 1995. Further, tweaked it to capitalize on the developing www development industry.

Oracle Corporation later purchased Sun Microsystems in 2009. Moreover, gaining control of three core Sun software assets. MySQL, and Solaris.

Differences Between Java & Kotlin

Both are popular options on the market; here are some key distinctions to consider:

Support of smart cast is in Kotlin. So, this recognizes immutable types and conducts implicit casting via a compiler. But, while we must identify and perform casting in Java.

Type inference is in Kotlin. It means we don't have to say the data type of variables as we must in Java.

We don't have checked exceptions in Kotlin. So, this is a negative since it leads to error-prone code. But, Java has checked exceptions, which allows us to handle errors.

Although Java compiles 15-20% quicker than Kotlin, incremental build compilation. But, Kotlin takes the same amount of time as others.

We can't give null values to variables or return values in Kotlin. So, if we want to, we may define a variable using a specific syntax. In Java, we can assign null values. But, accessing objects referring to null values raises an exception.

Regardless of the differences between both, they are interchangeable. We may refer to Kotlin code as Java code and code as Kotlin code. As a result, we can use both classes in the same project and have no problems compiling them. We were unable to determine if the class was in both after compilation.

While Java is object-oriented programming. But, Kotlin integrates characteristics of both object-oriented and functional programming.

Kotlin has language scripting capabilities. So, you can use it in your Gradle build scripts. But, others do not.

Kotlin enables users to develop their extension functions, but other does not have any.

Implicit conversions are not available in Kotlin. But, they are available in Java.

Null variables and objects do not exist in Kotlin. Null variables and objects, on the other hand, are similar to the java language.

In Kotlin, basic type variables are objects. But, variables of a primitive type in the other one aren't.

Support of lambda Expression is in Kotlin. But, it is not there in other. 

Variable datatype requirements are not there in Kotlin. But, variable datatype specifications are in other.

Semicolons are not in Kotlin programs. Although they are in Java apps.

Expressions also get support from the Kotlin string template. Yet, unlike Kotlin, other string does not accept expressions.

Kotlin code is much simpler to deploy. But, deploying other code is difficult.

There are no wildcard types in Kotlin. But, wide-card support is present in others.

Kotlin's Benefits

The following are some of the advantages and disadvantages of Kotlin:

You may extract one common codebase. It targets all of them at the same time using the Kotlin Multiplatform framework.

Null safety support is into Kotlin. So, this is a lifesaver. Particularly on Android, which litters with archaic Java-style APIs.

There is less space for mistakes since it is more succinct and expressive than Java.

Provides code standards that are both user-friendly and intelligible.

Large applications are into smaller levels.

Many function types and specific language constructs, such as lambda expressions, are useful.

It facilitates the construction of extension functions for developers.

Creates data classes in a very easy and practically automatic manner.

Because Kotlin is a static type language. So, it's very simple to understand and write.

This language enables the interchange and usage of data in a variety of ways.

Writing new code in Kotlin will take less time.

Kotlin code is much simpler to deploy and maintain at scale.

Java's Advantages

The advantages and disadvantages of it are below.

Exceptions check to enhance error detection and resolution

There is much documentation available.

There is a vast pool of experienced developers accessible.

There are several third-party libraries to choose from.

It enables you to create standard programs and code that may be reusable.

It's a multi-threaded environment that lets you run many programs at the same time.

Outstanding performance

Libraries that are simple to browse

Kotlin's disadvantages

The following are some of the disadvantages of using Kotlin:

Because it is a small developer community, it lacks learning materials & professional help.

Checked exceptions, which can lead to errors, aren't available in it.

Kotlin is a very declarative language. So, it may assist you in generating large quantities of boilerplate in equal JVM bytecode.

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Java's disadvantages

The following are some of its drawbacks:

Because of some constraints, it's not particularly ideal for Android API design.

It requires a significant amount of physical labor. It increases the number of possible mistakes.

The JIT compiler slows down the program.

It has a lot of memory and processing power.

Low-level programming structures such as pointers are not supported.

You have no control over trash collection. Since it lacks capabilities like delete() and free().

Which is the better option?

When all Java's flaws are there, particularly the issue with Null Pointer Exceptions. Kotlin seems to be the superior language.

Although, since the Android OS is on it. It's an essential language for developing Android apps.

You should hire Kotlin developers if you want to guarantee that your Mobile apps development services are future-proof.


Finally, it provides a summary of the Java vs Kotlin contrast. After reading this post, I hope you will have a better understanding of these two languages. Java takes the lead in general-purpose programming. But, Kotlin is useful for a large number of developers for fast-creating Android apps.

Both have their own set of benefits. The dispute about which of the two is the best has recently begun, and it is unlikely to end anytime soon. It is up to you whether you use it both.

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