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I create XML with JAXB, and I want to put double inside tags:
@XmlElement(name = "TaxFree")
private double taxFreeValue;
When I set value with setTaxFreeValue(4.5); in tags shows <TaxFree>4.5<TaxFree>
Is it possible in JAXB to get this <TaxFree>4.500<TaxFree> without transfer double to string?
568
double is a 64-bit IEEE 754 double precision Floating Point Number – 1 bit for the sign, 11 bits for the exponent, and 52* bits for the value. double has 15 decimal digits of precision.
Just use %. 2f as the format specifier. This will make the Java printf format a double to two decimal places.
This is possible to do because a float value can hold only a maximum of 7 digits after the decimal, while a double value in Java can hold a maximum of 16 digits after the decimal.
The simplest way is this
double taxFreeValue;
@XmlElement(name = "TaxFree")
private String getTaxFree() {
return String.format("%.3f", taxFreeValue);
}
Note that you can give this method any name and make it private JAXB dont care as soon as the annotation is present.
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