Kotlin vs. Java: Which is the Better Choice for Android Development?

When it comes to developing mobile applications for Android, the big debate revolves around which language to choose: Kotlin or Java? Can one language do what the other can’t? How does each language compare? All these questions and more will be addressed in this article.

The development of mobile applications has become fundamental to many businesses in terms of revenue, customer relations, and product promotion. Often, app developers have to decide between two different programming languages: Java and Kotlin. Companies often struggle to determine which language to choose as they try to assess the benefits, differences, and similarities of the two technologies.
Recent reports have confirmed that more companies are using Kotlin due to its advantages such as better coding ability, simpler syntax, and fewer errors. At the same time, Java offers robust performance, wider support, and better stability. Therefore, it is important to weigh the pros and cons of each language to make an informed decision.

In this article, you will learn about the differences and similarities between Java and Kotlin and what factors should be taken into consideration when making a choice for Android development. Additionally, you will discover the pros and cons of each language and why one may be a better choice over the other. Finally, we will also be discussing the development techniques and approaches for each language.

Kotlin vs. Java: Which is the Better Choice for Android Development?


Kotlin and Java are two popular programming languages used to develop Android applications. Kotlin is a modern, concise language based on the Java Virtual Machine (JVM) and the Java programming language. It is designed to help developers create robust, expressive, and highly-functional applications. On the other hand, Java is a powerful, mature, and widely-used language that developers use to create powerful applications. Both languages have their advantages and disadvantages when it comes to Android development.

In order to understand the differences between these two languages and which one is better for Android development, let’s define each language in more detail. Kotlin is a general-purpose programming language designed to be concise and simple so developers can easily create powerful and functional applications. It provides powerful features such as coroutines, null safety, and advanced type inference, making development faster and easier. Java is a mature and widely-used programming language known for its object-oriented syntax, powerful tools, and APIs. It is used to create wide range of applications including desktop, enterprise, and mobile applications.

When deciding which language to use, it is important to consider your particular project and needs. For simple projects, Kotlin is a great choice as it is more concise and easier to learn than Java. However, for larger and more complex projects, Java may be the better choice due to its power and flexibility. Ultimately, the choice between the two languages will depend on the specific project and the developer’s preferences.

Take Advantage of the Noteworthy Features of Kotlin & Java for Android Development

Kotlin and Java: Rivals in Android Development

In the world of mobile app development, Android’s Java and Kotlin are the two most talked-about programming languages. Both languages have their own sets of advantages and disadvantages. Android developers have to make an important choice when it comes to using either of the two languages. The choice of language can have a profound impact on the development process as well as the end product. Each language provides developers with its own unique set of features and capabilities, which can be important considerations when choosing which one to use. To make the best choice for your project, it is essential to be aware of the respective features of both Kotlin and Java.

Kotlin’s Noteworthy Features

Kotlin is a modern programming language that has been heralded for its concise syntax and compatibility with Java. Many developers have turned to this language because it allows for faster and more efficient development. It also requires significantly less boilerplate code than Java, as much of its functionalities can be expressed with concise functions. This makes Kotlin much easier and faster to write, allowing developers to get projects up and running quickly.
Kotlin was designed with safety in mind, and it requires that developers do not write the most vulnerable pieces of code that often lead to bugs and errors. It applies modern development practices such as null safety by default, allowing the compiler to throw errors if this feature is not used correctly. Kotlin also offers lambda expressions and higher-order functions for more powerful and concise coding.
Kotlin is also an extremely versatile programming language, as it can be used for programming tasks such as Android, web applications, and much more. It is maintained and supported by the popular development firm JetBrains, giving it access to a wide range of tools and libraries that allow for easy development.

Java’s Advantages

Java is the de-facto language for the development of Android applications, and it is also the language that is most commonly used in the industry. It has been around for a much longer time than Kotlin and is the language of choice for many Android developers around the world.
Java makes it easy to develop large-scale projects, as it is a mature language that has been around for a long time. It provides developers with a wide range of libraries and tools to use to their advantage, such as Android Studio. It also offers a vast array of API options that developers can use to create powerful and complex applications.
Developers who choose to use Java for Android app development also benefit from its vast community of developers who can provide support and guidance. Java has a huge open-source library and an extensive documentation library. This makes it easy for developers to find help when they need it.

The Choice Between Java and Kotlin

When deciding which language to use for Android development, it is essential to consider the features of both Java and Kotlin. While Java offers many advantages for developers who are working on large-scale projects, Kotlin is the preferred language for many developers because of its concise syntax and safety-oriented features.
No matter which language you choose, the important thing is to make sure that you understand the features of each language and take advantage of them for your project.

  • Kotlin features
    • Concise syntax
    • Efficient development
    • Requires less boilerplate code than Java
    • Safety features
    • Lambda expressions and higher-order functions
    • Versatile (Android, web applications, etc.)
  • Java features
    • Mature language
    • Wide range of libraries and tools
    • Large open-source library
    • Extensive documentation library
    • Vast community of developers

Weigh the Pros & Cons of Kotlin & Java for Android App Development

The Robustness of Java

Java, the well-known general-purpose programming language, has been dominating the Android development space for years. It’s a reliable language, with a large open-source ecosystem and robust trend of continuous improvement that has enabled the development of many of the applications powering our daily lives. Plus, Java comes with a wealth of existing documentation and support options that experienced developers typically turn to first when looking to write powerful, reliable code.
But as with all things, nothing stays the same forever.

Kotlin’s Draws

Enter Kotlin, one of the newer top-tier contenders for the Android platform’s heart. Released in 2016, this jet-powered programming language is taking the development world by storm. Unlike Java, which is a verbose language, Kotlin is known for being streamlined and concise. This allows developers to focus more time and energy on the application’s business logic, improving development speed and quality, as well as maintenance.
Furthermore, Kotlin is built on the modern JVM (Java Virtual Machine), ensuring increased platform compatibility and wide community support. With a stable runtime environment, Kotlin offers developers the confidence and assurances that code will function as expected no matter where you run the application.
Kotlin brings with it some of the most powerful modern features, such as smart casts, extension functions, and higher order functions. With these, you can develop truly innovative applications that maximize the potential of the Android platform.
So, the question becomes: Is worth making the transition from Java to Kotlin?

Weighing the Options

There’s no “right answer” when it comes to choosing between Java and Kotlin for Android Development. Ultimately, the decision will come down to personal preferences and project needs. When making the decision, consider the following:
For developers already familiar with Java, transitioning to Kotlin may be more challenging than continuing down the path they already understand. Plus, there’s a good chance their existing codebase is written in Java, which would mean a significant rewrite or porting process to fully transition to Kotlin.
However, experienced developers should also bear in mind the substantial potential benefits of Kotlin such as increased productivity, fewer lines of code, growing community, Android Studio’s successful integration, and of course, its modern features.
Whatever language you choose, there’s no getting away from the fact that writing reliable Android apps comes down to the skill of the developer. The right language to use will depend on the project’s needs, the developer’s aptitude, and the quality of the code they write. That’s why it’s important to choose the language and platform combination that most suits you.

Spot the Emerging Trends in Android Development with Kotlin & Java

Both Kotlin and Java are Evolving for Android Developers

Android developers faced a major transformation when the programming language Kotlin was declared as a supported language by Google in 2017. Developed by JetBrains, the company behind IntelliJ, Kotlin is a modern open source language that acts as an alternative to Java for creating Android applications. But an important question remains — which programming language is better for Android development? Should Android developers choose Kotlin or stick to Java?
One common advantage seen in both Kotlin and Java is the object-oriented programming capabilities, making it easy to create classes and objects, define variables, and work with types. Since the same Android Studio IDE can be used for both Java and Kotlin projects, contenders do not need to learn anything new. But the key difference lies in the way of coding. An Android application written in Kotlin requires significantly less typing compared to one written in Java. While Java needs multiple lines of verbose code for some of its methods, the same can be implemented in a few words using Kotlin.

Making the Right Choice: A Comprehensive Comparison

From the aspect of compilation speed, the focused approach of Kotlin shines stronger when compared to Java. On top of this, Kotlin is also inherently resistant to common programming errors like null before an object, and has a far better readability than Java.
However, a few deficiencies can be noted in Kotlin. One, the learning curve of the language is steep – Java developers must be willing to invest their time in learning Kotlin before they can use it efficiently. Also, compared to Java, Kotlin is a young language and has far fewer frameworks and libraries to help carry out development.
While Kotlin has a lot of merits, Java also has its own advantages. Java is a mature language with a wide ecosystem, so developers find a rich set of frameworks and libraries that can be used with ease. Also, many bugs that are persisting in the Kotlin language do not exist in Java.
In the final analysis, every Android developer should consider their project requirements, time constraints, budgets, their team’s capabilities, and other factors to decide which language – Kotlin or Java – should be used in their project.
So, how to make the right choice between Kotlin and Java for Android development? Perhaps the best way is to evaluate the scope of the project, experience of the team, and the preferences of the client – all these elements play an important role in deciding which programming language should be used to deliver the desired outcome.


Choosing the best language for developing Android applications can be a daunting task. With so many programming languages available, it can be hard to know which one is the right choice. While Java has long been the go-to option for Android applications, Kotlin is gaining ground in the mobile development space. So, which language should you be using for your Android application? That is a question that many developers are asking, and the answer is not a simple one.
One thing is sure: both Java and Kotlin can be used to successfully develop top-notch Android apps. Each language has its own set of pros and cons that need to be taken into consideration by the developer when making their choice. For developers looking for an easy transition, going with Java may be the best option, as many of the concepts are similar and there are many resources available for learning the language. However, for developers looking for a bit more challenge and flexibility, Kotlin may be a better choice.
The debate between Java and Kotlin is sure to continue, and it’s certainly something that developers should keep an eye on. Should one language be chosen over the other? Is there ever a time where it might be advantageous to use both? These are all questions that require extensive thought and research. Fortunately, our blog is here to help developers stay up-to-date with the latest language news. Be sure to check back regularly for more updates on this important topic, and keep an eye out for the newest language releases.


Q1. What is the main difference between Kotlin and Java?
A1. The main difference between Kotlin and Java is that Kotlin is a modern, statically typed programming language that is interoperable with Java while Java is a general-purpose, class-based, object-oriented programming language. Kotlin also provides features such as null safety, extension functions, higher order functions, data classes, and more that make it easier to write concise, understandable code. Therefore, Kotlin is generally preferred when developing Android applications.
Q2. Which offers better performance, Kotlin or Java?
A2. Generally speaking, Kotlin does not provide a great performance benefit over Java, as both languages are compiled to the same bytecode. The performance difference between the two languages usually comes down to the programmer writing more efficient code in Kotlin.
Q3. What is the learning curve for Kotlin?
A3. Kotlin is considered to be relatively easy to learn for those who have some programming experience. The syntax is designed to be concise and intuitive, and many of the advanced features such as generics and lambdas can be picked up quickly. Java developers should have no issues transitioning to Kotlin.
Q4. Can you mix and match Java and Kotlin code?
A4. Absolutely! It is possible to use Java libraries and frameworks in a Kotlin application, and similarly, use Kotlin libraries in a Java application. This makes development easier, as it allows developers to choose the language that best suits their needs.
Q5. What type of projects are better suited to Kotlin or Java?
A5. Kotlin is preferred by modern Android developers because of its unique features and benefits. However, when it comes to creating complex applications and systems, Java may be the preferred language due to its ability to handle larger projects and its scalability.