org.apache.poi.ss.formula.functions

Class EOMonth

java.lang.Object

org.apache.poi.ss.formula.functions.EOMonth

All Implemented Interfaces:

FreeRefFunction

public class EOMonth
extends java.lang.Object
implements FreeRefFunction

Implementation for the Excel EOMONTH() function.

EOMONTH() returns the date of the last day of a month..

Syntax:
EOMONTH(start_date,months)

start_date is the starting date of the calculation months is the number of months to be added to start_date, to give a new date. For this new date, EOMONTH returns the date of the last day of the month. months may be positive (in the future), zero or negative (in the past).

(Excel EOMONTH() 函数的实现。 EOMONTH() 返回一个月最后一天的日期。 语法：EOMONTH(start_date,months) start_date 是计算的开始日期months 是要添加到start_date 的月数，以给出新的日期。对于这个新日期，EOMONTH 返回该月最后一天的日期。月份可能是正数（未来）、零或负数（过去）。)

Field Summary

Fields

Modifier and Type	Field and Description
static FreeRefFunction	instance

Constructor Summary

Constructors

Constructor and Description
EOMonth()

Method Summary

Modifier and Type	Method and Description
ValueEval	evaluate(ValueEval[] args, OperationEvaluationContext ec)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

instance

public static final FreeRefFunction instance

Constructor Detail

EOMonth

public EOMonth()

Method Detail

evaluate

public ValueEval evaluate(ValueEval[] args,
                          OperationEvaluationContext ec)

Specified by:

evaluate in interface FreeRefFunction (在接口 FreeRefFunction 中求值)

Parameters:

args - the pre-evaluated arguments for this function. args is never null, nor are any of its elements. (args - 此函数的预评估参数。 args 永远不会为空，它的任何元素也不会。)

ec - primarily used to identify the source cell containing the formula being evaluated. may also be used to dynamically create reference evals. (ec - 主要用于识别包含正在评估的公式的源单元格。也可用于动态创建参考评估。)

Returns:

never null. Possibly an instance of ErrorEval in the case of a specified Excel error (Exceptions are never thrown to represent Excel errors). (从不为空。在指定 Excel 错误的情况下可能是 ErrorEval 的一个实例（从不抛出异常来表示 Excel 错误）。)