Java 函数式编程

BiFunction<BigDecimal, BigDecimal, BigDecimal> function = (source, targe) -> source.divide(targe, BigDecimal.ROUND_CEILING).multiply(new BigDecimal(100)).setScale(2, BigDecimal.ROUND_DOWN);
        loss.setAbnormal(false);
        if (sanitizeBeforeQuantity.compareTo(BigDecimal.ZERO) <= 0) {
            loss.setBadPackPercent("0.00%");
        } else {
            loss.setBadPackPercent(function.apply(sanitizeBeforeQuantity, prodVacuumQuantity).toString() + "%");
        }

java.util.function 它包含了很多类，用来支持 Java的 函数式编程，该包中的函数式接口有：