Java Number Round roundToString(double nb2round, int nbOfDigits)

Description

Round to string.

License

Open Source License

Parameter

Parameter	Description
nb2round	the nb2round
nbOfDigits	the nb of digits

Return

the string

Declaration

public static String roundToString(double nb2round, int nbOfDigits) 

Method Source Code

//package com.java2s;
/*//from ww  w .j a  v a 2s.co  m
This file is part of PSFj.
    
PSFj is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
PSFj is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with PSFj.  If not, see <http://www.gnu.org/licenses/>. 
    
   Copyright 2013,2014 Cyril MONGIS, Patrick Theer, Michael Knop
       
 */

public class Main {
    /**
     * Round to string.
     *
     * @param nb2round the nb2round
     * @param nbOfDigits the nb of digits
     * @return the string
     */
    public static String roundToString(double nb2round, int nbOfDigits) {
        if (nbOfDigits == 0)
            return "" + Math.round(nb2round);
        return new Double(round(nb2round, nbOfDigits)).toString();
    }

    /**
     * Round.
     *
     * @param d the d
     * @return the int
     */
    public static int round(double d) {
        return (int) Math.round(d);

        //return Math.round(new Float(d));
    }

    /**
     * Round.
     *
     * @param nb2round the nb2round
     * @param nbOfDigits the nb of digits
     * @return the double
     */
    public static double round(double nb2round, int nbOfDigits) {
        return Math.round(nb2round * Math.pow(10, nbOfDigits)) / Math.pow(10, nbOfDigits);
    }
}

Related

1. roundToSignificantDigits(double num, int n)
2. roundToSignificantDigits(double value, int n)
3. roundToSignificantDigits(double x, double y, int nSignif)
4. roundToSignificantFigures(double num, int n)
5. RoundToStr(double value, int dec)
6. roundToTop(float f)
7. roundToWord(long value)
8. roundToZero(float x)
9. roundTwoDecimals(double value)