How do you type cast Char/Int in Scala?

Question

I am having issues getting this cast to work.

The compiler tells me value aNumber is not a member of object Char

def runCastTest() {     val aNumber = 97     val aChar = (Char)aNumber    println(aChar) // Should be 'a'   } 

What am I doing wrong?

Answer 1

You are not casting. With (Char)aNumber you are trying to invoke a method aNumber in the object Char:

scala> val aNumber = 97 aNumber: Int = 97  scala> val aChar = (Char)aNumber <console>:5: error: value aNumber is not a member of object Char         val aChar = (Char)aNumber                           ^ 

You can do

scala> aNumber.asInstanceOf[Char] res0: Char = a 

or as Nicolas suggested call toChar on the Int instance:

scala> aNumber.toChar res1: Char = a 

Answer 2

As everything is an Object in scala, you should use aNumber.toChar.