Márton Braun

Android Developer


A Kotlin enthusiast since the 1.0 of the language. Ranked right around the very top of the Kotlin tag on StackOverflow. Creator of a couple open source Kotlin libraries. Android developer (and self-proclaimed Kotlin evangelist) at AutSoft. Android/Kotlin tech editor at University student, working on a master's in computer engineering at the Budapest University of Technology and Economics. Instructor at the same university, teaching Kotlin and Android.


Kotlin has many features that are leaps and bounds ahead of Java. However, its primary target platform being the JVM, all of these features still need to compile to the same bytecode as Java does. This is a look at how a variety of interesting Kotlin features are compiled to bytecode, and what their Java equivalents would be. Even though Kotlin abstracts away much of the virtual machine and the original feature set of Java with its own features, it’s still important to know what your Kotlin code compiles to. Not only can this knowledge give you the power to optimize your code, but it will also help you avoid subtle bugs that would otherwise be near impossible to track down.

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