Inner Class

fun main(args: Array<String>) { 
    val demo = Outer().Nested().foo() // caling nested class method 
    print(demo) 
   
} 
class Outer { 
    private val welcomeMessage: String = "Welcome to the TutorialsPoint.com" 
    inner class Nested { 
        fun foo() = welcomeMessage 
    } 
}