(Math.round(doubleValue*100))/100.0
Is there a better way to round decimals to 2 decimal places?
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1Define better? What do you think is wrong with that code? – Mikola Jun 27 '11 at 14:58
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you mean 1000 to change in 1 or 10.123456 to 10.12? – Ovais Khatri Jun 27 '11 at 14:59
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Similar question, Rounding for money, at http://stackoverflow.com/q/5904032/509840. – rajah9 Jun 27 '11 at 15:01
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@Mikola it looks bad. @Ovais the latter. – Michael Jun 27 '11 at 15:10
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1possible duplicate of [Round a double to 2 significant figures after decimal point](http://stackoverflow.com/questions/2808535/round-a-double-to-2-significant-figures-after-decimal-point) – Thomas Matthews Sep 05 '12 at 20:23
2 Answers
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If you're interested in decimal places and therefore precise decimal values, you should typically be using java.math.BigDecimal to start with. You can then use Decimal.round or Decimal.setScale to round according to your exact needs.
Jon Skeet
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DecimalFormat format=new DecimalFormat("#.##");
System.out.println(format.format(doubleValue));
Bala R
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Do note: this does not round numbers. It just displays strings that have been formatted to a certain precision. The answer from John Skeet is the appropriate way to round to an explicit number of decimals without the juggling act of multiply-round-divide by OP. – Atreys Jun 27 '11 at 17:05