How to format BigDecimal with 2 fractions?

Question

I'd like to format and display BigDecimal numbers with always to fractions. No other separators should ever be displayed. How could I achieve it? The following does not work.

NumberFormat formatter = NumberFormat.getNumberInstance(Locale.GERMANY);
formatter.setMaximumFractionDigits(2);
formatter.setMinimumIntegerDigits(2);
Sysout(formatter.format(new BigDecimal(100))); //would expect "100,00", but printout is "100"

M A · Accepted Answer · 2014-07-03T16:11:16.017

5

The setMinimumFractionDigits will set the minimum number of digits in the fraction portion of the number.

NumberFormat formatter = NumberFormat.getNumberInstance(Locale.GERMANY);
formatter.setMaximumFractionDigits(2);
formatter.setMinimumIntegerDigits(2);
formatter.setMinimumFractionDigits(2);
System.out.println((formatter.format(new BigDecimal(100)))); // prints "100,00"

edited Jul 03 '14 at 16:11

answered Jul 03 '14 at 15:29

M A

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You have `setMaximumFractionDigits` twice. The OP already had it. – Boris the Spider Jul 03 '14 at 15:34
You're right, thanks. I thought it was `setMaximumIntegerDigits`. Will update it. – M A Jul 03 '14 at 16:11

score 2 · Answer 2 · answered Jul 03 '14 at 15:29

2

Just use a custom format of

0.00

Like so:

NumberFormat formatter = new DecimalFormat("0.00", DecimalFormatSymbols.getInstance(Locale.GERMANY));

This will force any incoming number for have to decimals.

answered Jul 03 '14 at 15:29

Boris the Spider

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score 0 · Answer 3 · answered Jul 03 '14 at 15:29

0

you can use this.

 aBigDecimal.SetScale(2, RoundingMode.HALF_UP);

answered Jul 03 '14 at 15:29

Arno_Geismar

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score 0 · Answer 4 · answered Jul 03 '14 at 15:33

0

BigDecimal d=new BigDecimal("100");
d=d.setScale(2, RoundingMode.CEILING);
System.out.println(d);

answered Jul 03 '14 at 15:33

Abhishek Mishra

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How to format BigDecimal with 2 fractions?

4 Answers4