This scala code wouldn't show my result - scala

Question

I just started writing Scala about a month ago. I however have been writing in Java, Javascript and some others.
Please I'd need someone to tell me why this code wouldn't display the result of the move(x,y) method. Even though it builds and runs succesfully.
class PinPoint(val xc: Int, val yc: Int){
var x:Int = xc; var y:Int = yc
def move(dx:Int, dy:Int){
x = x + dx
y = y + dy
println("Position on horizontal axis is " + x);
print("Position on vertical axis is " + y);
}
}
object Run {
def main(args: Array[String]) {
val pos = new PinPoint(20,18);
println()
pos.move(5,7);
}
}

Answer 1

Consider also this approach where a new PinPoint instance is created each time move() is called, namely using (immutable) values instead of (mutable) variables,
case class PinPoint(x: Int, y: Int) {
def move(dx: Int, dy: Int) = PinPoint(x+dx, y+dy)
override def toString() =
s"""|Position on horizontal axis is $x
|Position on vertical axis is $y""".stripMargin
}
object Run {
def main(args: Array[String]) {
val pos = PinPoint(20,18);
println(pos)
val shiftedPos = pos.move(5,7);
println(shiftedPos)
}
}
Method toString() delivers a multiline string where class members x and y have been interpolated.
One way to compile and run it,
scalac PinPoint.scala -d PinPoint.jar
scala PinPoint.jar
and so
Position on horizontal axis is 20
Position on vertical axis is 18
Position on horizontal axis is 25
Position on vertical axis is 25