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From: James Ong <yanlile...@gmail.com>Date: Thu, 12 Jul 2012 06:24:50 -0700 (PDT)
Local: Thurs, Jul 12 2012 9:24 am
Subject: Scala basic calculation
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-f...
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
}
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From: Marcel Klemenz <maklem...@gmail.com>Date: Thu, 12 Jul 2012 06:42:46 -0700 (PDT)
Local: Thurs, Jul 12 2012 9:42 am
Subject: Re: Scala basic calculation
Or do you try to pass String String Int of your template requires String
String String?
would make more sense.
Am Donnerstag, 12. Juli 2012 15:24:50 UTC+2 schrieb 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-f...
> 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
> }
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From: James Ong <yanlile...@gmail.com>Date: Thu, 12 Jul 2012 06:44:38 -0700 (PDT)
Local: Thurs, Jul 12 2012 9:44 am
Subject: Re: Scala basic calculation
Oh, I spotted my index template is a String, So rewrite as
getSum("1","2").*toString*)
Will solve the type issue.
On Thursday, 12 July 2012 21:24:50 UTC+8, James Ong wrote: > 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-f...
> 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
> }
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From: James Ong <yanlile...@gmail.com>Date: Thu, 12 Jul 2012 06:50:27 -0700 (PDT)
Local: Thurs, Jul 12 2012 9:50 am
Subject: Re: Scala basic calculation
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
}
}
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From: Andrew Conner <att...@gmail.com>Date: Thu, 12 Jul 2012 08:54:40 -0700 (PDT)
Local: Thurs, Jul 12 2012 11:54 am
Subject: Re: Scala basic calculation
Why are you using Strings for everything? I would make getSum be:
getSum(a: Int, b: Int) = a+b
and then change your view to take Ints.
On Thursday, July 12, 2012 9:50:27 AM UTC-4, James Ong wrote: > 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
> }
> }
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