Scala basic calculation

[James Ong]

I found this SO question only explain the code example for Java, tried Scala turn out a little different:

http://stackoverflow.com/questions/10024880/calculation-in-play-2-0-framework-template-engine

What wrong with the getSum code?

type mismatch; found : Int required: String 

object Application extends Controller {

  

  def index = Action {

    Ok(views.html.index("1","2",Application.getSum("1","2")))  //<- Error type mismatch

  }

  

  def getSum(a: String,b: String):Int = Action {

val c = a.toInt + b.toInt;

  } c

}

[Marcel Klemenz]

Or do you try to pass String String Int of your template requires String String String?
would make more sense.

[James Ong]

Oh, I spotted my index template is a String, So rewrite as

getSum("1","2").toString)

Will solve the type issue.

[James Ong]

For the quick working example for Scala, any tips to optimize the code below will be appreciated!

object Application extends Controller {

  

  def index = Action {

    Ok(views.html.index("1","2",getSum("1","2").toString))

  }

  

  var c:Int = 0;

  def getSum(a: String,b: String):String = {

c = a.toInt + b.toInt

c.toString    ///return c as String

  }

}