In Scala the apply() method is used to select an element present in the list by its index position.
use case 1:
scala> object prwa{
def apply(name: String): String={
“Hello %s”.format(name)
}
}
object prwa
scala> prwa.apply(“prava”)
scala> prwa(“binoj”)
use case 2:
scala> class Prwatech {
private val elements = Array(“spark”,”scala”,”mysql”)
def apply(index:Int) = if(index<elements.length) elements(index) else “No element found”
}
class Prwatech
scala> val Prwatech = new Prwatech
scala> println(Prwatech(1))
scala> println(Prwatech(0))
scala> println(Prwatech(2))
scala> println(Prwatech(3))
use case 3:
Scala> object prwatech{
def apply(name: String): String={
“My Name is %s”.format(name)
}
}
object prwatech
scala> prwatech.apply(“Mark”)
scala> prwatech.apply(“Steve”)
