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)
round 
return Math.round(d * 100D) / 100D;
doubleround(double d)
Rounds the number to 4 significant digits 
if (d == 0.0)
    return d;
int digits = (int) (Math.log(d) / Math.log(10));
return round(d, 3 - digits);
intround(double d)
Round a double 
int i = (int) d;
double result = d - i;
if (result < 0.5D)
    return i;
return i + 1;
intround(double d)
round 
return floor(d + 0.5d);
intround(double d)
round 
return (int) Math.round(d);
longround(double d)
round 
if (d < 0) {
    return (long) (d - 0.5);
} else {
    return (long) (d + 0.5);
intround(double d)
Unchecked implementation to round a number. 
return (int) (d + 0.5D);
intround(double d)
Round. 
return (int) Math.round(d);
doubleround(double d, int decimalPlacesRequired)
Reduces the precision of a double to a specified number of decimal places. 
double factor = Math.pow(10, decimalPlacesRequired);
return Math.round((d * factor)) / factor;
doubleround(double d, int decimals)
round 
if (d != d) {
    return Double.NaN;
double n = Math.pow(10, decimals);
return Math.round(d * n) / n;