Kotlin (programming language): Difference between revisions

Revision as of 20:08, 24 June 2014

Revision as of 14:29, 3 July 2014

Line 45:

val scope = "world"

println("Hello, ${scope}!")

}

</source>

Kotlin makes a difference between nullable and non-null datatypes. All nullable objects must be declared with a "?" postfix after the type name. Operations on nullable objects needs special care from developers: null-check must be peformed before using the value.

<source lang=Scala>

fun foo(maybeNull : String?, neverNull : Int)

{

}

</source>