arrays - Best way to change list type in scala -


I have a list named l: list [ATP] that I want to change the list to [string] .

This may look like a very dirty, incompetent approach, but I'm not the best way to make sure. My code was: 

  var results = new array [string] ("a", "b") l foreach {case a => Result = result: + (a.toString (.) ToUpperCase ()); } I do not know that this is my fault, because it is not giving me anything, even if I put a print statement inside the loop, even then nothing is printing anything.  
 So I decided to change it in a more compulsive way:  
 for  (i <-0 to l.length) {result.update (i , L (I) .toString)}  
 
 This time when I want to see it while printing inside the loop, but in the end the program crashed with an index outbound error 
 < P> Thanks!

"text">

Take a look at the map function. For example, 

  Scala> List ("Some", "Wire") Map (_ ToUpperCase) res2: list [java.lang.String] = list (some, STRINGS)

or 

  scala> List ("Some", "Wire") Map (_ length) res0: list [int] = list (4, 7)

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