Scala wont pattern match with java.lang.String and Case Class
- by Stefan
Hello fellow Scala Programmers
I have been working with Scala for some month now, however I have a problem with some properly basic stuff, I am hoping you will help my out with it.
case class PersonClass(name: String, age: Int)
object CaseTester {
def main(args:Array[String])
{
val string = "hej"
string match {
case e:String => println(string)
case PersonClass => println(string)
}
}
}
When I am doing like this I get error:
pattern type is incompatible with expected type;
found : object PersonClass
required: java.lang.String
case PersonClass = println(string)
And if I then change the second line in the pattern matching to the following:
case e:PersonClass => println(string)
I then get the error:
error: scrutinee is incompatible with pattern type;
found : PersonClass
required: java.lang.String
case e:PersonClass = println(string)
However if I change the string definition to the following it compiles fine in both cases.
val string:AnyRef = "hej"
