Joda-Money provides a library of classes to store amounts of money.
Joda-Money does not provide, nor is it intended to provide, monetary algorithms beyond the most basic and obvious. This is because the requirements for these algorithms vary widely between domains. This library is intended to act as the base layer, providing classes that should be in the JDK.
As a flavour of Joda-Money, here's some example code:
// create a monetary value Money money = Money.parse("USD 23.87"); // add another amount with safe double conversion CurrencyUnit usd = CurrencyUnit.of("USD"); money = money.plus(Money.of(usd, 12.43d)); // subtracts an amount in dollars money = money.minusMajor(2); // multiplies by 3.5 with rounding money = money.multipliedBy(3.5d, RoundingMode.DOWN); // compare two amounts boolean bigAmount = money.isGreaterThan(dailyWage); // convert to GBP using a supplied rate BigDecimal conversionRate = ...; // obtained from code outside Joda-Money Money moneyGBP = money.convertTo(CurrencyUnit.GBP, conversionRate); // use a BigMoney for more complex calculations where scale matters BigMoney moneyCalc = money.toBigMoney();
Users are reminded that this software, like all open source software, is provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND.
Various documentation is available:
There are no full releases yet! Release 0.9 is the current development release intended for feedback. The code is fully tested, but there may yet be bugs and the API may yet change. There should be no great reason why it cannot be used in production if you can cope with future API change.
There are no runtime dependencies beyond JDK 1.6.
Joda-Money does have a compile-time dependency on Joda-Convert, but this is not required at runtime thanks to the magic of annotations.
Available in the Maven Central.