Initializing Generic Variables in Scala

Question

How do I declare a generic variable in Scala without initializing it (or initializing to any value)?

def foo[T] {
   var t: T = ???? // tried _, null
   t
}
         


        

Answer 1

You can't not initialize local variables, but you can do so for fields:

scala> class foo[T] {
     | var t: T = _
     | }
defined class foo