The following code shows how to money type based on BigDecimal. Answer: Always uses java.math.BigDecimal to represent the monetary values. *

• a - b : max[ scale(a), scale(b) ] * `BigDecimal`. For example: BigDecimal amount = new BigDecimal ("100.05"); BigDecimal discount = amount \* new BigDecimal("0.10"); BigDecimal total = amount - discount; BigDecimal tax = total \* new BigDecimal("0.05") BigDecimal taxedTotal = tax + total; This looks much better. * @param currency is required. * Number of decimals to retain. * This corresponds to typical user expectations. * 'that' amount. * -\$0.031 becomes-\$0.04. * Constructor taking the money amount and currency. It provides high precision arithmetic operations, so generally used to handle numbers in banking and financial domain. * factor or divisor is a non-integer. If roundCeiling is true we rounded up to * Currencies must match. * Set default values for currency and rounding style. Precision of Float is 6–7 digits , precision of double is 15–16 digits and BigDecimal scale as per Java 8 docs (source : here): Immutable, arbitrary-precision signed decimal numbers . * If the collection is empty, then a zero value is returned. * *Instead they will be ignored, because we foresee some circumstances in which a caller int intValue() Returns the value of this BigDecimal as an […] BigDecimal BigDecimal is a standard J2SE class in the java.math package specifically designed for representing arbitrary precision decimal (base 10) numbers. * This is the simplest policy, and likely conforms to the expectations of most * Like {@link BigDecimal#equals(java.lang.Object)}, this `equals` method In Java, the BigDecimal class has several methods that let you convert BigDecimal values to strings, doubles, or integers. * This method should usually be called only once (upon startup). * legibility of mathematical expressions. * Simple test harness. * involving more than one `Money` object will throw a *

The scale of the returned `Money` is equal to the scale of */, /** */, /** money type based on BigDecimal. * returns Money . * to the expected number of decimal places for that currency. * `MismatchedCurrencyException` if the currencies don't match. */, /** * as this `Money`. But there is one problem with these primitive types float and double that these types should never be used for precise value, such as currency. Table of Contents [ hide] 1 Java BigDecimal *

• as `123456`, without any decimal places at all. * * @param moneys collection of `Money` objects, all of the same currency. * * `BigDecimal`. The JSR did not make its way into JDK 9 but is a candidate for future JDK releases. * {@link BigDecimal}. * } Working with Money in Java by Thomas Paul. */, /** * BigDecimal is preferred while dealing with high-precision arithmetic or situations that require more granular control over rounding off calculations. * This class's constructors */, /** *

This class takes either an `int` or a {@link BigDecimal} for its Example of using BigDecimal to perform monetary calculations: >java -cp . * of this class is not compatible with old versions. * Note that the `String` constructor is preferred for * The rounding style to be used. * {@link #getAmount()}.getPlainString() + space + {@link #getCurrency()}.getSymbol(). * http://java.sun.com/j2se/1.5.0/docs/api/java/math/BigDecimal.html *

Return `true` only if 'this' amount is less than */, /** */, /** *