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(double d, int i)
round 
long powerTen = 1;
for (int x = 0; x < i; x++) {
    powerTen *= 10;
return ((double) Math.round(d * powerTen)) / powerTen;
doubleround(double d, int numDecimal)
Round specified value to specified number of decimal. 
final double pow = Math.pow(10, numDecimal);
return Math.round(d * pow) / pow;
doubleround(double d, int p)
round 
long tmp = (long) Math.pow(10, p);
double num = Math.round(d * tmp);
num /= tmp;
return num;
doubleround(double d, int precision)
round 
int temp = (int) ((d * Math.pow(10, precision)));
return (((double) temp) / Math.pow(10, precision));
floatRound(double d, int Rpl)
rounds a number to RPL places 
float p = (float) Math.pow(10, Rpl);
d = d * p;
float tmp = Math.round(d);
return (float) tmp / p;
doubleround(double dValue)
round 
return Math.rint(dValue * m_dFractionMultiplier) / m_dFractionMultiplier;
doubleround(double input)
A quick way to round numbers. 
input = input * 1000.0;
int tempInt = (int) input;
double output = ((double) tempInt) / 1000;
return output;
doubleround(double input, double step)
Method rounds input number by a specific step 
return ((Math.round(input / step)) * step);
intround(double n)
Round to the nearest integer.
This is different from Math.round() for negative number. 
return (int) ((n > 0 ? 0.5 : -0.5) + n);
doubleround(double n, double nd)
round 
if (isFinite(n) && isFinite(nd)) {
    double sign_n = (n < 0) ? -1 : 1;
    double abs_n = Math.abs(n);
    double factor = Math.pow(10, nd);
    return sign_n * Math.round(abs_n * factor) / factor;
} else {
    return Double.NaN;