Java Utililty Methods Number Round

List of utility methods to do Number Round

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Description

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

Method

introundToMultipleXLength(int inLength, int multipler)
round To Multiple X Length 
if (multipler == 0)
    return inLength;
return inLength % multipler == 0 ? inLength : inLength + multipler - inLength % multipler;
doubleroundToN(double d, int n)
Rounds the d to n decimal places. 
double places = StrictMath.pow(10, n);
double p = StrictMath.round(d * places) / places;
return p;
doubleroundToNDecimalPlaces(final double in, final int n)
Rounds the double to the given number of decimal places. 
if (n < 1) {
    throw new IllegalArgumentException("cannot round to " + n + " decimal places");
final double mult = Math.pow(10, n);
return Math.round((in + Math.ulp(in)) * mult) / mult;
doubleroundToNDigits(double d, int n)
round To N Digits 
if (d == 0)
    return d;
int log = (int) Math.log10(d);
int exp = n;
exp -= log;
int ival = (int) (Math.round(d * Math.pow(10, exp)));
return ival / Math.pow(10, exp);
doubleroundToNearest(double d)
round To Nearest 
return Math.floor(d + 0.5);
doubleroundToNearest(double number)
round To Nearest 
if ((int) (number + .5) >= (int) (number))
    return (int) number + 1;
return (int) number;
introundToNearest(int num, int nearest)
Rounds the number to the nearest. 
return (int) (nearest * Math.round((double) num / (double) nearest));
introundToNearestEven(int mantissa, int numOfBitsToRoundOff)
Rounds the mantissa with bitsRoundOff 
assert (numOfBitsToRoundOff < 32);
int a = 1 << (numOfBitsToRoundOff - 1) - 1;
int b = (mantissa >> numOfBitsToRoundOff) & 1;
return (mantissa + a + b) >> numOfBitsToRoundOff;
introundToNearestInterval(int i, int j)
round To Nearest Interval 
return Math.round(i / j) * j;
introundToNearestK(float v, int k)
round To Nearest K 
return (int) (Math.round(v / k) * k);