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Scala Functions

Scala Function Variable Parameters

Scala allows you to specify that the last parameter of a function can be repeated, that is, we do not need to specify the number of function parameters, and we can pass a variable length parameter list to the function.

object Test {
   def main(args: Array[String]) {
        printStrings("w3codebox, "Scala", "Python");
   }
   def printStrings( args: String* ) = {
      var i: Int = 0;
      for( arg <- args ){
         println("Arg value[" + i + "] = " + arg );
         i = i + 1;
      }
   }
}

Execute the above code, the output will be:

$ scalac Test.scala
$ scala Test
Arg value[0] = w3codebox
Arg value[1] = Scala
Arg value[2] = Python

Scala Functions