Kotlin has arrived here as a language for Android app development but a debate between developers has already begun whether it’s better than Java or not. Of course, when it comes to Android app development, it’s natural to compare these two languages with one another and try to conclude that which is better than the other one.
Here are the key points to make a comparison between Java and Kotlin
Android app code conciseness – As we know Java isn’t a concise language which simply means developers need to write a long code to attain result. Here Kotlin has been tested to be a relatively concise Android app development programming language.
NullPointerException handling – Although, you can still handle NullPointerException but Kotlin has Null Safety features, too. With Java You always have to explicitly handle the exception in all cases.
Extending a class with new functionality – Developers may have to create a new class that extends the class. The new functionality can be added to a new class. Then the reference of new class is used in the code. The whole process becomes chaotic at a time. Kotlin has extended functions which could be applied to extend functionality of class and then to use the name of same class in your code. This avoids code from any kind of mess and fuss.
Handling of high computing tasks without blocking UI thread – Developers use a background thread for this purposes but it becomes quite difficult when there are multiple of threads to handle. For performing high computationally tasks, Kotlin allows creating coroutines which can perform computationally task without blocking the main thread.
Checked Exceptions – Checked exception require catching and handling these exceptions. Of course the task makes code more robuster but Kotlin does not have checked exception which simply means there is no need to catch an exception. In result code remains neater and cleaner.
Multiple Inheritance – Java does not support multiple inheritances but Kotlin has Class delegation that may serve as alternative to multiple inheritances.
Implicit widening conversion – Java provides support for implicit widening conversion but Kotlin does not. If you need that, you will need typing case for any conversion.
Android Studio Support – Both languages are officially supported in Android studio for Android application development.
Data Classes – There is need of explicitly writing Getters, Setters, equals(), hashcode() and toString(). There is no need to write Getters, Setters, equals(), hashcode() and toString() explicitly in Kotlin.
James Stewart is a marketing manager at Mobilmindz, a prominent mobile app development company which provides iOS and Android App Development services across the globe. He regularly writes for mobile app trends, mobile technology topics.