Question

I’d like to have a BigDecimal formatted with 2 decimals after the decimal point. Always.

Based on some boolean checks, I sometimes return a BigDecimal.ZERO;
In this case, the JSF page just displays “0”, although I set <f:convertNumber minFractionDigits="2" maxFractionDigits="2"/>.

I do not understand this, but nevertheless how can I enforce 2 digits else?

Answer 1

there are 2 ways of doing this

you can use the built in BigDecimal function

myBigDecimal.SetScale(2, RoundingMode.HALF_UP);

This returns a big decmial with 2 digits past the decimal and also rounds up.(there are also other rounding methods)

OR

you could use jsf convertNumber Tag

<f:convertNumber maxFractionDigits="2" minFractionDigits="2" />