/**
* Returns the greater of two {@code MonetaryAmount} values. If the arguments have the same value,
* the result is that same value.
*
* @param a an argument.
* @param b another argument.
* @return the larger of {@code a} and {@code b}.
*/
static MonetaryAmount max(MonetaryAmount a, MonetaryAmount b) {
MoneyUtils.checkAmountParameter(
Objects.requireNonNull(a), Objects.requireNonNull(b.getCurrency()));
return a.isGreaterThan(b) ? a : b;
}
/**
* Adds two monetary together
*
* @param a the first operand
* @param b the second operand
* @return the sum of {@code a} and {@code b}
* @throws NullPointerException if a o b be null
* @throws MonetaryException if a and b have different currency
*/
public static MonetaryAmount sum(MonetaryAmount a, MonetaryAmount b) {
MoneyUtils.checkAmountParameter(
Objects.requireNonNull(a), Objects.requireNonNull(b.getCurrency()));
return a.add(b);
}