CurrencyUnit usd = Monetary.getCurrency("USD"); CurrencyUnit jpy = Monetary.getCurrency(Locale.JAPAN); CurrencyConversion conversion = MonetaryConversions.getConversion("EUR"); MonetaryAmount convertedAmount = Monetary.getAmountFactory().setCurrency("USD") .setNumber(100) .toCurrency(conversion); MonetaryAmount amount = Monetary.getDefaultAmountFactory() .setCurrency("USD") .setNumber(100.50) .create(); NumberFormat format = MonetaryFormats.getAmountFormat(Locale.US); String formattedAmount = format.format(amount); MonetaryAmount amount1 = Monetary.getDefaultAmountFactory() .setCurrency("USD") .setNumber(100) .create(); MonetaryAmount amount2 = Monetary.getDefaultAmountFactory() .setCurrency("USD") .setNumber(50) .create(); MonetaryAmount sum = amount1.add(amount2);