question: public TimeTableXYDataset ( TimeZone zone , Locale locale ) { ParamChecks . nullNotPermitted ( zone , "zone" ) ; ParamChecks . nullNotPermitted ( locale , "locale" ) ; this . values = new DefaultKeyedValues2D ( true ) ; this . workingCalendar = Calendar . getInstance ( zone , locale ) ; this . xPosition = TimePeriodAnchor . START ; }
target:  Creates a new dataset with the given time zone and locale.