Java Number Round roundToDecimals(double d, int percision)

Description

Round a double to the given number decimal places

License

Open Source License

Parameter

Parameter	Description
d	a parameter
percision	a parameter

Declaration

public static double roundToDecimals(double d, int percision) 

Method Source Code

//package com.java2s;
/***************************************************************************
 *  Copyright (C) 2012 by H-Store Project                                  *
 *  Brown University                                                       *
 *  Massachusetts Institute of Technology                                  *
 *  Yale University                                                        *
 *                                                                         *
 *  http://hstore.cs.brown.edu/                                            *
 *                                                                         *
 *  Permission is hereby granted, free of charge, to any person obtaining  *
 *  a copy of this software and associated documentation files (the        *
 *  "Software"), to deal in the Software without restriction, including    *
 *  without limitation the rights to use, copy, modify, merge, publish,    *
 *  distribute, sublicense, and/or sell copies of the Software, and to     *
 *  permit persons to whom the Software is furnished to do so, subject to  *
 *  the following conditions:                                              *
 *                                                                         *
 *  The above copyright notice and this permission notice shall be         *
 *  included in all copies or substantial portions of the Software.        *
 *                                                                         *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        *
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     *
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
 *  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR      *
 *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,  *
 *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR  *
 *  OTHER DEALINGS IN THE SOFTWARE.                                        *
 ***************************************************************************/

public class Main {
    /**//  www  .ja va 2  s  .  c o m
     * Round a double to the given number decimal places
     * 
     * @param d
     * @param percision
     * @return
     */
    public static double roundToDecimals(double d, int percision) {
        double p = (double) Math.pow(10, percision);
        return (double) Math.round(d * p) / p;
    }

    /**
     * Round a float to the given number decimal places
     * 
     * @param d
     * @param percision
     * @return
     */
    public static final float roundToDecimals(float d, int percision) {
        float p = (float) Math.pow(10, percision);
        return (float) Math.round(d * p) / p;
    }
}

Related

1. roundToDecimalPlaces(final double val, final int places)
2. roundToDecimals(double d, int c)
3. roundToDecimals(double d, int c)
4. roundToDecimals(double d, int c)
5. roundToDecimals(double d, int numberOfDecimalPlaces)
6. roundToDecimals(double doubleValue)
7. roundToDecimals(double input, int places)
8. roundToDefaultPrecision(final double value)
9. roundToDimensions(int value, int f)