Class WeekNum

  • All Implemented Interfaces:
    FreeRefFunction, Function, Function2Arg

    public class WeekNum
    extends Fixed2ArgFunction
    implements FreeRefFunction
    Implementation for Excel WeekNum() function.

    WeekNum (Serial_num,Return_type)

    Returns a number that indicates where the week falls numerically within a year.

    Serial_num is a date within the week. Dates should be entered by using the DATE function, or as results of other formulas or functions. For example, use DATE(2008,5,23) for the 23rd day of May, 2008. Problems can occur if dates are entered as text. Return_type is a number that determines on which day the week begins. The default is 1. 1 Week begins on Sunday. Weekdays are numbered 1 through 7. 2 Week begins on Monday. Weekdays are numbered 1 through 7.

    • Constructor Detail

      • WeekNum

        public WeekNum()
    • Method Detail

      • getWeekNo

        public int getWeekNo​(java.util.Calendar cal,
                             int weekStartOn)
      • evaluate

        public ValueEval evaluate​(ValueEval[] args,
                                  OperationEvaluationContext ec)
        Specified by:
        evaluate in interface FreeRefFunction
        args - the pre-evaluated arguments for this function. args is never null, nor are any of its elements.
        ec - primarily used to identify the source cell containing the formula being evaluated. may also be used to dynamically create reference evals.
        never null. Possibly an instance of ErrorEval in the case of a specified Excel error (Exceptions are never thrown to represent Excel errors).