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Why Kotlin is better than Java for Android?

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Hello there, technology enthusiasts! Mobile app development has gained immense popularity over the last few years. With the increasing use of smartphones and tablets, more businesses are now investing in mobile apps to reach their target audience. When it comes to creating Android apps, Java has been the language of choice for quite some time. However, in recent years, Kotlin has emerged as a powerful alternative to Java, and it offers several benefits that Java lacks. In this article, we will discuss why Kotlin is better than Java for Android development and how it can improve your app-building experience.

Kotlin for Android Development
Source molo17.com

Kotlin is a modern programming language that was created by JetBrains, a renowned software development company. It was designed to be more expressive, concise, and readable than Java, making it easier for developers to write clean and maintainable code. Kotlin is fully compatible with Java, so you can use it alongside Java in your Android project. In fact, Kotlin can even be considered a better version of Java, as it solves multiple issues that Java has. This article will take a closer look at these issues and explain why Kotlin is the better choice for Android development.

The Rise of Kotlin

In 2017, Google announced its official support for Kotlin, making it the first programming language other than Java to be fully supported by the Android platform. Since then, Kotlin has steadily grown in popularity among Android developers as an alternative to Java. According to the latest survey by Google, one in four Android developers now uses Kotlin for their projects.

One reason for its popularity is that Kotlin is a lot more concise and much easier to read than Java. Kotlin’s syntax is designed to be more concise and more intuitive, requiring fewer lines of code to achieve the same result as Java code. This makes it much easier for developers to write, read, and maintain code in Kotlin.

In addition to its conciseness, Kotlin is also designed to be more versatile than Java. Kotlin can run on any platform that supports Java, making it ideal for cross-platform development. It has also been embraced by a growing number of frameworks and libraries, making it easier to integrate with other software and tools.

Another advantage of Kotlin is that it is fully interoperable with Java. This means that Kotlin code can run on any Java Virtual Machine (JVM) and Java code can be invoked from Kotlin. Developers who switch to Kotlin don’t have to start from scratch and can easily integrate it into their existing Java projects.

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Finally, Kotlin is backed by a strong and growing community of developers who are constantly sharing knowledge and contributing to the development of new features and libraries. This means that developers who are new to Kotlin can rely on a wealth of resources and support when learning the language.

In conclusion, Kotlin’s rise to prominence in the Android development world can be attributed to its conciseness, versatility, interoperability, and strong community support. As more and more developers switch to Kotlin, it is likely to continue to grow as the preferred language for Android app development.

Kotlin’s Superior Features

When it comes to developing Android applications, Kotlin is the go-to language for developers due to its set of powerful and superior features over Java. In this section, we will delve into the reasons why Kotlin is better than Java for Android development.

Null Safety

Kotlin provides strong null safety, which means that it prevents null pointer exceptions that often occur in Java. In Java, it’s difficult to avoid null pointer exceptions because null is a valid value for any reference type. In contrast, Kotlin’s null safety ensures that references to variables cannot be null unless explicitly declared to be nullable. This feature prevents runtime crashes, eliminates NullPointerException and enhances code quality and reliability.

Concise Syntax

Another desirable feature of Kotlin is its concise syntax, which means that developers can write less code and still achieve the same functionality as that of Java. Kotlin uses concise syntax to reduce boilerplate code, eliminate unnecessary verbosity, and minimize the potential for errors. Moreover, it also allows developers to write cleaner code, which ensures better readability, maintainability, and less error-prone code.

Type Inference

Kotlin supports type inference, which means that developers don’t need to worry about declaring types of variables in the source code, thereby simplifying the syntax. With type inference, developers can write less code and improve code readability while avoiding potential errors that may arise due to type mismatches while writing the code.

Extension Functions

One of the Kotlin’s highlights feature set is the support for extension functions. It allows developers to add functionalities to existing classes without modifying the source code directly. The benefit that it gives to developers is that they can improve code readability, reuse the same code in multiple places, and enhance the overall productivity of the development team.

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Functional Programming

Kotlin supports functional programming, which means that it enables developers to write cleaner, shorter, and more concise code. It also allows for more efficient coding practices like immutability and reduced side effects that eliminate error-prone code. Functional programming enables developers to write more reliable, scalable code, and work seamlessly with functional libraries.

Interoperability with Java Code

Kotlin is fully inter-operable with Java, which means that developers can easily migrate their existing Java code to Kotlin or use the Kotlin code in existing Java projects. Kotlin is a highly compatible language that can leverage the essential advantages of both Java and Kotlin. It also has built-in support for Java code and libraries, giving developers a more streamlined integration process when dealing with Java code.

In conclusion, Kotlin is a better choice for developing Android applications as it offers powerful, concise, and reliable features that allow developers to write elegant code, reduce errors, and simplify development processes. Its superior features such as null-safety, concise syntax, type inference, extension functions, functional programming, and inter-operability with Java make it the go-to language for Android developers.

Why Choose Kotlin for Android Development?

Kotlin is becoming an increasingly popular choice for Android development since it was officially announced as a first-class language by Google in 2019. This language has proved itself to be an excellent alternative to Java, the language that has been used for Android development for many years.

So, why should you choose Kotlin over Java for your Android projects? Let’s explore three of the best reasons to choose Kotlin.

Faster Development

One of the most significant advantages of using Kotlin for Android development is its efficiency. With less coding, Kotlin facilitates faster development. Writing code with Kotlin is concise, thanks to the reduced boilerplate code that saves time and effort.

Java, on the other hand, is known for being notoriously verbose. Developers often have to create extensive lengths of code to create something basic. By contrast, Kotlin has many features that Java lacks in the syntax such as extension methods and null safety, leading to fewer lines of code required.

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Moreover, Kotlin has a robust type inference system that allows the language to deduce the types of variables based on the context, reducing the need for explicit type declarations. Kotlin’s intuitive and streamlined syntax results in faster and more efficient Android app development.

Fewer Errors

The Java language has some inherent drawbacks, making it more prone to errors such as null pointer exceptions, one of the most widespread issues with Java. Kotlin has a sophisticated type system that ensures the code is more concise and less error-prone.

This type system is specially designed with null safety features that can detect the occurrence of null values, reducing the risk of producing null pointer exceptions. The system’s smart casting capabilities can work together to eliminate common bugs early in the development process. This eradicates the need for auxiliary libraries or additional checks for null values, which saves time and money during the development process.

Improved App Performance

Kotlin is a language that runs on the Java Virtual Machine (JVM), making its performance at par with Java. Its unique features help developers optimize the applications better, thus increasing the system’s performance.

For example, Kotlin has a more concise syntax for class definitions and function signatures, allowing the compiler to generate more efficient bytecode. Its ability to optimize the code minimizes the runtime overhead and reduces the memory usage, making the app faster and more responsive for users.

Kotlin also has a feature known as ‘inline’ functions, which can be used to improve the runtime performance and generate more optimized bytecode.


These are just a few of the reasons why Kotlin is becoming an increasingly popular choice for Android development. Faster development, fewer errors, and better app performance overall make it a great choice for app developers.

With Kotlin, developers can create Android applications more efficiently and with fewer errors than using a language like Java. The improved performance can make a significant difference in the user experience, and it provides a better foundation for developers to work with moving forward.

Overall, Kotlin is powerful yet easy to learn, with excellent support for Android Studio and the Android ecosystem. It’s an excellent language for developers who want to build great Android apps and ensure that they are delivered smoothly and efficiently.