Kotlin is a  new programming dialect worked by JetBrains, which likewise adventitiously builds up the JetBrains IDE that Android Studio — Google's legitimate engineer instrument — depends on. Like Java, which is the default dialect for Android advancement, Kotlin is a dialect that keeps running on the JVM (Java Virtual Machine), and it's as of now conceivable to utilize Kotlin and numerous other JVM dialects for Android improvement. Android doesn't utilize the JVM precisely, however, the Java roots are solid, and Kotlin's interoperability with Java has settled on it a mainstream decision for engineers. Official Google support will be a tremendous lift for the beginning dialect, be that as it may, and will probably make working with Kotlin on Android significantly more normal. 

 

Kotlin apparatuses will be incorporated into Android Studio 3.0. Kotlin as a dialect has a considerable measure of similitudes to Java in structure — it's protest situated and statically composed and intended for comparable issues Java comprehends. But since it's a fresh start from various perspectives, Kotlin adds a great deal of pleasant to-have highlights, a much cleaner grammar, thoughts from useful programming, and different improvements over Java. 

Not at all like the Swift programming dialect, which was an inner Apple undertaking and afterward opens sourced later, Google won't possess Kotlin. The dialect will keep on being produced and bolstered by JetBrains — the organization is cooperating with Google to set up a not-for-profit Kotlin establishment to shepherd the dialect. Kotlin will likewise keep on targeting different stages: the dialect is intended to keep running as local code on iOS and Macs and furthermore accumulates to JavaScript for web advancement.

 

Compatibility: Kotlin is completely perfect with JDK 6, guaranteeing that Kotlin applications can keep running on more established Android gadgets without any issues. The Kotlin tooling is completely bolstered in Android Studio and perfect with the Android fabricate framework.

 

Performance: A Kotlin application keeps running as quick as an equal Java one, because of fundamentally the same as bytecode structure. With Kotlin's help for inline capacities, code utilizing lambdas regularly runs significantly speedier than a similar code written in Java.

Why Cotlin for Android

 

Since Android surprised the world, designers have had no contrasting options to Java application improvement. In spite of the fact that its utilization is across the board, Java accompanies a ton of recorded things. 

Java 8 tackled some dialect issues and adjusted considerably more with Java 10. Keeping in mind the end goal to get a lot of an advantage from the amendments made in these two discharges, you need to set the base SDK to Android 24 just to utilize Java 8, which isn't a possibility for some engineers. For nearly everyone, Java 10 isn't even on the radar. 

Kotlin expects to fill that hole in a missing present-day dialect for the Android stage. There are a couple of center precepts that Kotlin lives by; it endeavors to be:

 

   1.Concise to reduce the amount of boilerplate code you need to write.

   2.Expressive to make your code more readable and understandable.

   3.Safe to avoid entire classes of errors such as null pointer exceptions.  

   4.Versatile for building server-side applications, Android apps or frontend code running in the browser.

   5.Interoperable to leverage existing frameworks and libraries of the JVM with 100 percent Java interoperability.