Examples of MathContext

com.ibm.icu.math.MathContext

The MathContext immutable class encapsulates the settings understood by the operator methods of the {@link BigDecimal}class (and potentially other classes). Operator methods are those that effect an operation on a number or a pair of numbers.

The settings, which are not base-dependent, comprise:

digits: the number of digits (precision) to be used for an operation
form: the form of any exponent that results from the operation
lostDigits: whether checking for lost digits is enabled
roundingMode: the algorithm to be used for rounding.

When provided, a MathContext object supplies the settings for an operation directly.

When MathContext.DEFAULT is provided for a MathContext parameter then the default settings are used (9, SCIENTIFIC, false, ROUND_HALF_UP).

In the BigDecimal class, all methods which accept a MathContext object defaults) also have a version of the method which does not accept a MathContext parameter. These versions carry out unlimited precision fixed point arithmetic (as though the settings were (0, PLAIN, false, ROUND_HALF_UP).

The instance variables are shared with default access (so they are directly accessible to the BigDecimal class), but must never be changed.

The rounding mode constants have the same names and values as the constants of the same name in java.math.BigDecimal, to maintain compatibility with earlier versions of BigDecimal. @see BigDecimal @author Mike Cowlishaw @stable ICU 2.0

java.math.MathContext

Immutable objects which encapsulate the context settings which describe certain rules for numerical operators, such as those implemented by the {@link BigDecimal} class.

The base-independent settings are:

{@code precision}: the number of digits to be used for an operation; results are rounded to this precision
{@code roundingMode}: a {@link RoundingMode} object which specifies the algorithm to beused for rounding.

@see BigDecimal @see RoundingMode @author Mike Cowlishaw @author Joseph D. Darcy @since 1.5

            if (paymentApplication.get("paymentId") != null) {
                GenericValue payment = paymentApplication.getRelatedOne("Payment");
                if (paymentApplication.get("invoiceId") != null && payment.get("actualCurrencyAmount") != null && payment.get("actualCurrencyUomId") != null) {
                    GenericValue invoice = paymentApplication.getRelatedOne("Invoice");
                    if (payment.getString("actualCurrencyUomId").equals(invoice.getString("currencyUomId"))) {
                           appliedAmount = appliedAmount.multiply(payment.getBigDecimal("amount")).divide(payment.getBigDecimal("actualCurrencyAmount"),new MathContext(100));
                    }
                }
            }
        } catch (GenericEntityException e) {
            Debug.logError(e, "Problem getting Payment", module);

                    BigDecimal amountApplied = paymentApplication.getBigDecimal("amountApplied");
                    // check currency invoice and if different convert amount applied for display
                    if (actual.equals(Boolean.FALSE) && paymentApplication.get("invoiceId") != null && payment.get("actualCurrencyAmount") != null && payment.get("actualCurrencyUomId") != null) {
                        GenericValue invoice = paymentApplication.getRelatedOne("Invoice");
                        if (payment.getString("actualCurrencyUomId").equals(invoice.getString("currencyUomId"))) {
                               amountApplied = amountApplied.multiply(payment.getBigDecimal("amount")).divide(payment.getBigDecimal("actualCurrencyAmount"),new MathContext(100));
                        }
                    }
                    paymentApplied = paymentApplied.add(amountApplied).setScale(decimals,rounding);
                }
            }

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Examples of MathContext

Examples of java.math.MathContext

Examples of java.math.MathContext