Binary TO Octal Conversion

object prog6 {

private def octal(n: Int): Unit = {
printf("Octal Value is %o\n", n)
}

def main(args: Array[String]): Unit = {

println("Enter a Integer")
val n = scala.io.StdIn.readInt()

val binary = n.toBinaryString
println("Binary of " + n + " is " + binary)
octal(n)

}
}