How to declare a byte array in Scala?

Question

In Scala, I can declare a byte array this way

val ipaddr: Array[Byte] = Array(192.toByte, 168.toByte, 1.toByte, 9.toByte)

This is too verbo

Answer 1

To expand on Chris Martin's answer, if you're feeling lazy and like you don't want to type out Array(...).map(_.toByte) over and over again, you can always write a variadic function:

def toBytes(xs: Int*) = xs.map(_.toByte).toArray

Now you can declare your byte array just about as concisely as in Java:

val bytes = toBytes(192, 168, 1, 1) // Array[Byte](-64, -88, 1, 1)