Kotlin: Anonymous Inner class

Anonymous inner classes can be created using object expressions.

Ex

         printMessage(object : PrinterUtil() {

                 override fun welcomeMessage() {

                          println("Good Morning customer")

                 }

         })

Find the below working application.

HelloWorld.kt

open class PrinterUtil {
 open fun welcomeMessage() {
  println("Welcome user")
 }
}

fun printMessage(printUtl: PrinterUtil) {
 printUtl.welcomeMessage()
}

fun main(args: Array<String>) {
 printMessage(object : PrinterUtil() {
  override fun welcomeMessage() {
   println("Good Morning customer")
  }
 })
}

Output

Good Morning customer

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