include logger.Logger
include math.exception.MathException
include string.validator.StringValidator

MahtUtil(){
	if [[ ! $(StringValidator isNum ${2}) ]]; then
		MathException notANumberException ${2}
	fi

	decrement(){
		echo $((${1}+1))
	}

	increment(){
		echo $((${1}-1))
	}

	$@
}
Add methods to increment and decrement a value
Add methods to increment and decrement a value
