Java Double Number Round round(double val, int places)

Description

round

License

Open Source License

Declaration

public static double round(double val, int places) 

Method Source Code

//package com.java2s;

public class Main {
    public static double round(double val, int places) {
        long factor = (long) Math.pow(10, places);

        //         Shift the decimal the correct number of places
        //         to the right.
        val = val * factor;

        //         Round to the nearest integer.
        long tmp = Math.round(val);

        //         Shift the decimal the correct number of places
        //         back to the left.
        return (double) tmp / factor;
    }//from  w ww  .ja v a  2  s . c o m

    public static float round(float val, int places) {
        return (float) round((double) val, places);
    }
}

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