Java Double Number Truncate trunc(double value, int len)

Description

trunc

License

Apache License

Declaration

public final static double trunc(double value, int len) 

Method Source Code

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

public class Main {

    public final static double trunc(double value, int len) {

        if (Double.isNaN(value)) {
            return Double.NaN;
        }/*from   ww  w.j a  v a2  s . c o m*/

        if (Double.isInfinite(value)) {
            return value;
        }

        double p = Math.pow(10, len);
        if (value > 0) {
            return (Math.floor(value * p) / p);
        } else if (value < 0) {
            return -(Math.floor(-value * p) / p);
        } else {
            return 0;
        }
    }
}

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