Java Utililty Methods Double Number Round

List of utility methods to do Double Number Round

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Description

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

Method

Doubleround(final Double value)
round 
if (value != null) {
    return Math.floor(value.doubleValue() + 0.5d);
return value;
Floatround(final Double value)
Round to 0.x 
if (value != null) {
    return (float) (Math.round(value * TEN)) / TEN;
return null;
doubleround(final double value, final int numDecimals)
round 
final double factor = Math.pow(10.0, numDecimals);
return Math.round(value * factor) / factor;
doubleround(final double x, final int digits)
rounds up a double up to the specified number of digits after period. 
final double d = Math.pow(10, digits);
return Math.round(x * d) / d;
intround2(double d)
Useful for hashCode() and equals() fn's that compare stuff read from a text file. 
return (int) (d * 100 + 0.5);
doubleround2(double num)
round 
double result = num * 100;
result = Math.round(result);
result = result / 100;
return result;
doubleround2(final double arg)
Returns the input argument, rounded to two decimal places. 
double d = arg * 100.0;
final long longArg = Math.round(d);
return longArg / 100.0;
intround2(int a, int preserveDigits)
Math#round(double) -like operation for integers preserving the given number of digits in contrary to MathUtil#round(int,int) where cut-of-digits are specified:
return round(a, getDigits(a) - preserveDigits) 
return round(a, getDigits(a) - preserveDigits);
Doubleround2Places(Double input)
round Places 
return Math.round(input * 100.0) / 100.0;
doubleround5(final double value)
round 
return Math.round(value * 100000.) / 100000.;