What Is syntax in Kotlin?

Despite all the differences between the two languages, Java and Kotlin are 100% interoperable . You can call Kotlin code from Java, and you can call Java code from Kotlin. So it’s possible to have Kotlin and Java classes side-by-side within the same project, and everything will still compile.

Kotlin is 100% interoperable with the Java programming language and major emphasis has been placed on making sure that your existing codebase can interact properly with Kotlin. You can easily call Kotlin code from Java and Java code from Kotlin. This makes adoption much easier and lower-risk.

The fun keyword is used to declare a function. … The println() function is used to output/print text, and in our example it will output “Hello World”. Good To Know: In Kotlin, code statements do not have to end with a semicolon ( ; ) (which is often required for other programming languages, such as Java, C++, C#, etc.).