java-money-calculator

A java tool for money calculate

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Requires

jdk 1.7+

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Features

• ISO 4217 standard currencies
• user-defined currencies
• support all of rounding modes of java.math.RoundingMode
• operations: add/subtract/multiply/divide/fxByMultiply/fxByDivide/compare
• Stream API: calculator.init(m1).add(m2).multiply(n).getResult()

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Usage

Money m1 = CurrencyFactory.get("USD").fromBasicUnitValue(1.01);//build a USD money instance by using basic unit, which is dollor.
Money m2 = CurrencyFactory.get("USD").fromMinorUnitValue(109);//build a USD money instance by using minor unit, which is cent.

MoneyCalculator calculator = MoneyCalculator.fromRoundingMode(RoundingMode.HALF_UP);
Money result = calculator.init(m1).add(m2).getResult();

double dollorValue = result.getBasicUnitValue();//2.1
String dollorValueStr = result.getBasicUnitValueString();//"2.10"

long centValue = result.getMinorUnitValue();//210

String resultStr = result.toString();//"USD 2.10"

By default, CurrencyFactory only supported two currencies: CNY and USD.
But, it's easy to extend, by adding a JSON config file named currency_factory_config.json in your CLASSPATH, and the config file format like this:

[
	{"code":"CNY","symbol":"¥","scale":2},
    {"code":"USD","symbol":"$","scale":2}
]