public Boolean validate(String value)
{
//GET LUHN NUMBER WITHOUT LAST DIGIT
String luhnNumberGiven = value.Substring(0, value.Length - 1);
String luhnDigitGiven = value.Substring(value.Length - 1);
//CALCULATE VERIFIED DIGIT
String DV = new luhnCalculatorClass().calculateFinalDigit(luhnNumberGiven);
//CONTROL POINT
if (DV.Length > 1)
{
//EXCEPTION OCURR
throw new Exception(DV);
}
//RETURN VALIDATION
if (luhnDigitGiven == DV)
{
return(true);
}
else
{
return(false);
}
}
public String generate()
{
//GET RANDOM VALUE 15 DIGITS
String randomNumber = DateTime.UtcNow.Ticks.ToString().Substring(0, 15);
//CALCULATE VERIFIED DIGIT
String DV = new luhnCalculatorClass().calculateFinalDigit(randomNumber);
//RETURN NUMBER
return(randomNumber + DV);
}