Java Double Number Round round(double d, int decimals)

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Description

round

License

Apache License

Declaration 

public static double round(double d, int decimals)

Method Source Code

//package com.java2s;
//License from project: Apache License 

public class Main {
    public static double round(double d, int decimals) {
        if (d != d) {
            return Double.NaN;
        }//from w  w  w.ja v  a 2 s .c o m
        double n = Math.pow(10, decimals);
        return Math.round(d * n) / n;
    }

    public static double round(double d, double fraction) {
        if (d != d) {
            return Double.NaN;
        }
        return Math.round(d * fraction) / fraction;
    }
}

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