how to round 0.055 value to 0.06 in java. I have tried DecimalFormat but it returns 0.05

Question

What is the variable type before rounding (String, double, BigDecimal etc.), is the type after rounding the same? — S. Pauk, Apr 13 '15 at 07:36
I have float values before rounding but I tried with BigDecimal and DecimalFormat. It din't work — Prashant Kumar, Apr 13 '15 at 07:39
All the solutions here works fine when the values are of double type but not when the values are of float type. — Prashant Kumar, Apr 13 '15 at 08:16
So use BigDecimal.ROUND_UP instead of BigDecimal.ROUND_HALF_UP — newuserua_ext, Apr 13 '15 at 08:20

score 2 · Answer 1 · answered Apr 13 '15 at 07:38

2

A kind of trivial way

double d = 0.055;       
d= Math.round(d* 100);
d= d/100;
System.out.println(d);

answered Apr 13 '15 at 07:38

Loki

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Nice approach! +1 for mathematical solution! – Ernusc Apr 13 '15 at 07:41
This will be fail; (double)Math.round(1.005 * 100) / 100 – newuserua_ext Apr 13 '15 at 08:14
You may read this article http://java.dzone.com/articles/why, actually it was a bug http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6430675 which already fixed on java 7 – newuserua_ext Apr 13 '15 at 08:32

score 1 · Answer 2 · answered Apr 13 '15 at 07:39

1

This is good for you ;

new BigDecimal(String.valueOf(0.055)).setScale(2, BigDecimal.ROUND_HALF_UP)

answered Apr 13 '15 at 07:39

newuserua_ext

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score 0 · Answer 3 · edited May 23 '17 at 10:24

0

Try below code.

DecimalFormat df=new DecimalFormat("0.00");
String formate = df.format(0.055);
double finalValue = (Double)df.parse(formate) ;
System.out.println(finalValue);

Output:

0.06

Reference Link : Double value to round up in Java

edited May 23 '17 at 10:24

Community

1
1

answered Apr 13 '15 at 07:37

Pratik

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score 0 · Answer 4 · answered Apr 13 '15 at 07:38

0

public static void main(String[] args) {
     double d = 0.055;
     DecimalFormat f = new DecimalFormat("##.00");
     System.out.println(f.format(d));
}

Output:

.06

answered Apr 13 '15 at 07:38

Touchstone

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score 0 · Answer 5 · edited Apr 13 '15 at 09:16

0

round(0.055, 2); // returns 0.06

public static double round(double value, int places) {
  if (places < 0) throw new IllegalArgumentException();

  BigDecimal bd = new BigDecimal(value);
  bd = bd.setScale(places, RoundingMode.HALF_UP);
  return bd.doubleValue();
}

edited Apr 13 '15 at 09:16

seenukarthi

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answered Apr 13 '15 at 07:38

Rahul Thachilath

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how to round 0.055 value to 0.06 in java. I have tried DecimalFormat but it returns 0.05

5 Answers5