Spark and Scale Auxiliary constructor doubt

Question

Refer to the code snippet---
 

class AuxDuck()
{
var size = 0
var age = 0

println("Slayer")

def this(size:Int)
{
this()//calls primary constructor
this.age=age
}

def this(size:Int, age:Int)
{
this(size) // calls previous auxiliary constructor
this.age=age
}
}

object AuxilaryConstructor extends App 
{
var d1 = new AuxDuck()
println(d1.size + "," +d1.age)

It gives output---
Slayer
0,0

May I know how the Slayer got printed?
Is there any role of primary constructor in this printing of Slayer?

Answer 1

println("Slayer") is an anonymous block and gets executed each time an object is created.

Hence Slayer is printed.