Printing array in Scala

Question

I am having problem with most basic Scala operation and it is making me crazy.

val a = Array(1,2,3)

println(a)   and result is [I@1e76345

println(a.toString()) and result is [I@1e76345

println(a.toString) and result is [I@1e76345

Can anyone tell me how to print array without writing my own function for doing that because that is silly. Thanks!

Answer 1

mkString will convert collections (including Array) element-by-element to string representations.

println(a.mkString(" "))

is probably what you want.