Re: Strange problem with Scala 2.10

Hi Oliver,

The problem is that the map was like c=Map("\"lable\"" -> "" ), I didn't 
notice that, therefore I got confused.

Thanks!



On Sunday, March 1, 2015 at 5:57:35 AM UTC-6, Jon Pretty wrote:
>
> Hi Oliver,
>
> I think the heuristic is that the REPL puts quotes around strings if they 
> start or end with whitespace.
>
> Cheers,
> Jon
>
> On Fri, 27 Feb 2015 at 02:31 Oliver Ruebenacker <[email protected] 
> <javascript:>> wrote:
>
>>
>>      Hello,
>>
>>   Normally, REPL does not put quotations around Strings, or does it? So 
>> the quotation marks are part of the Strings, then, right? Try:
>>
>>
>> c.asInstanceOf[Map[String, Any]].apply("\"features\"")
>>
>>   If it's not that, I would try println(c.getClass) and println(c).
>>
>>   And:
>>
>>   val map = c.asInstanceOf[Map[String, Any]]
>>   map(map.keys.head)
>>
>>      Best, Oliver
>>
>>
>>
>> On Thu, Feb 26, 2015 at 6:54 PM, Jiakui Wang <[email protected] 
>> <javascript:>> wrote:
>>
>>> I got the variable c from previous code, and it behaves very strangely:
>>>
>>> scala> c.asInstanceOf[Map[String, Any]].keys
>>> res24: Iterable[String] = *Set("label", "features")*
>>>
>>> scala> c.asInstanceOf[Map[String, Any]].apply("features")
>>> *java.util.NoSuchElementException: key not found: features*
>>> at scala.collection.MapLike$class.default(MapLike.scala:228)
>>> at scala.collection.AbstractMap.default(Map.scala:58)
>>> at scala.collection.MapLike$class.apply(MapLike.scala:141)
>>> at scala.collection.AbstractMap.apply(Map.scala:58)
>>> at .<init>(<console>:14)
>>> at .<clinit>(<console>)
>>> at .<init>(<console>:7)
>>> at .<clinit>(<console>)
>>> at $print(<console>)
>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>> at 
>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>>> at 
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>> at java.lang.reflect.Method.invoke(Method.java:483)
>>> at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:734)
>>> at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:983)
>>> at scala.tools.nsc.interpreter.IMain.loadAndRunReq$1(IMain.scala:573)
>>> at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:604)
>>> at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:568)
>>> at scala.tools.nsc.interpreter.ILoop.reallyInterpret$1(ILoop.scala:760)
>>> at 
>>> scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:805)
>>> at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:717)
>>> at scala.tools.nsc.interpreter.ILoop.processLine$1(ILoop.scala:581)
>>> at scala.tools.nsc.interpreter.ILoop.innerLoop$1(ILoop.scala:588)
>>> at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:591)
>>> at 
>>> scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:882)
>>> at 
>>> scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:837)
>>> at 
>>> scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:837)
>>> at 
>>> scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
>>> at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:837)
>>> at scala.tools.nsc.interpreter.ILoop.main(ILoop.scala:904)
>>> at xsbt.ConsoleInterface.run(ConsoleInterface.scala:69)
>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>> at 
>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>>> at 
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>> at java.lang.reflect.Method.invoke(Method.java:483)
>>> at sbt.compiler.AnalyzingCompiler.call(AnalyzingCompiler.scala:102)
>>> at sbt.compiler.AnalyzingCompiler.console(AnalyzingCompiler.scala:77)
>>> at sbt.Console.sbt$Console$$console0$1(Console.scala:23)
>>> at 
>>> sbt.Console$$anonfun$apply$2$$anonfun$apply$1.apply$mcV$sp(Console.scala:24)
>>> at sbt.TrapExit$.sbt$TrapExit$$executeMain$1(TrapExit.scala:33)
>>> at sbt.TrapExit$$anon$1.run(TrapExit.scala:42)
>>>
>>>
>>> Any idea about the problem?
>>>
>>> Thanks
>>>
>>>
>>>
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>>
>>
>>
>> -- 
>> Oliver Ruebenacker
>> Solutions Architect at Altisource Labs <http://www.altisourcelabs.com/>
>> Be always grateful, but never satisfied.
>>  
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>

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