Java Utililty Methods Double Number Round

if (digits > 6) {
    return number;
} else {
    double roundNumber = number;
    roundNumber *= Math.pow(10, digits);
    roundNumber = Math.round(roundNumber);
    roundNumber /= Math.pow(10, digits);
    return roundNumber;
...

assert places > 0;
final double multiplier = Math.pow(10, places);
return (int) (number * multiplier) / multiplier;

final double power = Math.pow(10, places);
number = number * power;
final double value = Math.round(number);
return value / power;

int power = (int) Math.pow(10, precision);
double num2 = Math.round(number * power);
return num2 / power;

Double retObj = null;
if (number != null) {
    if (precision == null)
        precision = 0;
    Double decimalPlaces = Math.pow(10, precision);
    retObj = (double) Math.round(number * decimalPlaces) / decimalPlaces;
return retObj;
...

return null;

round *= (Math.pow(10, decimal));
if (ceilOrFloor == 0) {
    round = Math.ceil(round);
} else {
    round = Math.floor(round);
round /= (Math.pow(10, decimal));
return round;
...

int Ypred[][] = new int[Rpred.length][Rpred[0].length];
for (int i = 0; i < Rpred.length; i++) {
    for (int j = 0; j < Rpred[i].length; j++) {
        Ypred[i][j] = (int) Math.round(Rpred[i][j]);
return Ypred;

float p = (float) Math.pow(10, Rpl);
Rval = Rval * p;
float tmp = Math.round(Rval);
return (double) tmp / p;

return Math.round(toRound * 100.0) / 100.0;