How to use

setPrecision

method

in

javax.money.MonetaryAmountFactoryQueryBuilder

  /**
   * Creates an amount with the given precision.
   * @param precision the target precision
   * @return a corresponding amount.
   */
  public static MonetaryAmount createAmountWithPrecision(int precision) {
    MonetaryAmountFactoryQuery tgtContext = MonetaryAmountFactoryQueryBuilder.of().setPrecision(precision).build();
    MonetaryAmountFactory<?> exceedingFactory;
    try {
      exceedingFactory = Monetary.getAmountFactory(tgtContext);
      AssertJUnit.assertNotNull(exceedingFactory);
      MonetaryAmountFactory<? extends MonetaryAmount> bigFactory =
          Monetary.getAmountFactory(exceedingFactory.getAmountType());
      return bigFactory.setCurrency("CHF").setNumber(createNumberWithPrecision(precision)).create();
    } catch (MonetaryException e) {
      return null;
    }
  }
}

/**
 * @param args
 */
public static void main(String[] args) {
  MonetaryAmount amount = Monetary.getDefaultAmountFactory().setCurrency("EUR").setNumber(234).create();
  ConsoleUtils.printDetails(amount);
  amount = Monetary.getAmountFactory(FastMoney.class).setCurrency("EUR").setNumber(234).create();
  ConsoleUtils.printDetails(amount);
  amount = Monetary.getAmountFactory(
        MonetaryAmountFactoryQueryBuilder.of().setMaxScale(50).setPrecision(30).build())
         .setCurrency("EUR").setNumber(234).create();
  ConsoleUtils.printDetails(amount);
  Money amt1 = Money.of(10.1234556123456789, "USD");
  FastMoney amt2 = FastMoney.of(123456789, "USD");
  Money total = amt1.add(amt2).multiply(0.5)
      .remainder(1);
  ConsoleUtils.printDetails(total);
}