BigDecimal with minimal 2 fraction digits

Question

I saw Using BigDecimal to work with currencies but I have a little different problem.

I give object with BigDecimal parameters to PDF generation library and I can't use Formatter, only send objects. Is possible that default toString method always writes BigDecimal objects in format *.xx w.g 134.40 ?

I use setScale but it doesn't work for e.g. 134.300 because it writes 134.3 instead of 134.30

Have you tried this - `yourBigDecimal.SetScale(2, RoundingMode.HALF_UP);` — Adil Shaikh, Apr 23 '13 at 09:26

score 4 · Accepted Answer · answered Apr 23 '13 at 09:28

I assume the problem is that you have forgotten that BigDecimal is immutable and setScale doesn't alter the existing BigDecimal

BigDecimal decimal = BigDecimal.valueOf(134.4);
BigDecimal decimal2 = decimal.setScale(2, RoundingMode.HALF_UP);
System.out.println(decimal2);

prints

134.40

BTW to do the same thing with double

double d = 134.4;
System.out.printf("%.2f%n", d);

score 0 · Answer 2 · answered Apr 23 '13 at 09:27

0

Just use NumberFormat.getCurrencyInstance().format(n) and pass the resulting string to the PDF generation library.

answered Apr 23 '13 at 09:27

Nick Holt

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BigDecimal with minimal 2 fraction digits

2 Answers2