Kotlin vs Java in Android Application Development considering features of individual languages and their impact in coding.
|Android Application Code||Not Concise||Relatively Concise|
|Handle NullPointerException||You have to explicitly handle this exception all the times||Kotlin Null Safety feature could be used or you may handle it explicitly.|
|Extend a class with new functionality||You may have to create a new class that extends the class and the new functionality should be added in new class. New class reference should be used in your code. It becomes messy.||Kotlin extension functions could be used to extend the functionality of a class and use the same class name in your code without and mess and fuss.|
|Handle high computation tasks without blocking UI thread||A background thread (like AsyncTask) has to be used. And if multiple such threads are background tasks are required, managing multiple threads may become difficult.||You may create coroutines. Coroutines perform high computationally tasks without blocking main thread, but suspending execution at a certain point. Coroutines being stackless, have a lower memory usage.|
|Checked Exceptions||You may need to catch and handle these exceptions. However, this may make your code robust.||Kotlin does not have checked Exception, hence no need to catch an exception. Code becomes clear and concise.|
|Multiple Inheritance||Not supported.||Kotlin’s Class Delegation could be used as an alternative to multiple inheritance.|
|Implicit widening conversion||Java supports implicit widening conversion like you may assign a byte value to an int, an int value to a double.||Kotlin does not support implicit widening conversion, Atleast as of now. You may need to type cast for any conversion.|
|Android Studio Support||An officially supported language.||Also, an officially supported language, latest addition to the list.|
|Data Classes||Getters, Setters, equals(), hashCode() and toString() have to be explicity written.||Getters, Setters, equals(), hashCode() and toString() are implicit. No need to write them separately.|
With these differences at a glance, you may choose either Kotlin or Java for Android Application Development.
In this Android Tutorial, we have presented the differences between Java and Kotlin for various aspects, to help choose a programming language for Android Application Development.