Java Utililty Methods BigDecimal Round

List of utility methods to do BigDecimal Round

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Description

The list of methods to do BigDecimal Round are organized into topic(s).

Method

BigDecimalround(BigDecimal num, int scale)
round 
return num.divide(new BigDecimal("1"), scale, BigDecimal.ROUND_HALF_UP);
BigDecimalround(BigDecimal number)
Round to two decimal places 
return number.setScale(2, RoundingMode.HALF_UP);
BigDecimalround(BigDecimal v, int scale, int roundingMode)
round 
if (scale < 0 || roundingMode < 0) {
    throw new IllegalArgumentException("The scale or roundingMode must be a positive integer or zero");
return v.divide(BigDecimal.ONE, scale, roundingMode);
BigDecimalround(BigDecimal value)
round 
return value.setScale(2, BigDecimal.ROUND_HALF_UP);
BigDecimalround(BigDecimal value)
round 
if (value == null) {
    return ZERO_VALUE;
return round(value.doubleValue());
BigDecimalround(BigDecimal value, BigDecimal increment, RoundingMode roundingMode)
Util method for rounding number to an increment from wikipedia http://en.wikipedia.org/wiki/Rounding#Rounding_to_a_specified_increment In general, rounding a number x to a multiple of some specified increment m entails the following steps: Divide x by m, let the result be y; Round y to an integer value, call it q; Multiply q by m to obtain the rounded value z. 
BigDecimal divided = value.divide(increment, 0, roundingMode);
BigDecimal result = divided.multiply(increment);
return result;
BigDecimalround(BigDecimal value, int accuracy)
This method is used for arbitrary accuracy rounding. 
MathContext context = new MathContext(accuracy, RoundingMode.HALF_EVEN);
BigDecimal factor = BigDecimal.valueOf(10.0).pow(accuracy);
return value.multiply(factor).round(context).divide(factor);
BigDecimalround(BigDecimal value, int places)
round 
if (places < 0)
    throw new IllegalArgumentException();
value = value.setScale(places, RoundingMode.HALF_UP);
return value;
BigDecimalround(BigDecimal value, String currency)
round 
if (currency == null) {
    return value.setScale(2, BigDecimal.ROUND_HALF_UP);
} else {
    return value.setScale(2, BigDecimal.ROUND_HALF_UP);
BigDecimalround(BigDecimal what, int howmuch)
round 
if (what == null) {
    return null;
double number = Double.parseDouble(what.toString());
double formatedNumber = (double) ((int) (number * Math.pow(10, howmuch) + .5)) / Math.pow(10, howmuch);
return BigDecimal.valueOf(formatedNumber);