Java Fraction Format format(double val)

Description

format

License

Open Source License

Declaration

public static String format(double val) 

Method Source Code

//package com.java2s;
/*//from  w  w  w  . j  a v  a2s. com
 * uDig - User Friendly Desktop Internet GIS client
 * (C) MangoSystem - www.mangosystem.com 
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * (http://www.eclipse.org/legal/epl-v10.html), and the HydroloGIS BSD
 * License v1.0 (http://udig.refractions.net/files/hsd3-v10.html).
 */

import java.math.RoundingMode;
import java.text.DecimalFormat;

public class Main {
    static final int DEFAULT_NUMBER_DIGIT = 6;
    static final DecimalFormat df = new DecimalFormat("#.######");

    public static String format(double val) {
        return format(val, DEFAULT_NUMBER_DIGIT);
    }

    public static String format(double val, int numberDigit) {
        if (Double.isNaN(val)) {
            return "";
        }

        if (Double.isInfinite(val)) {
            return "";
        }

        df.setMaximumFractionDigits(numberDigit);
        df.setRoundingMode(RoundingMode.HALF_UP);
        return df.format(val);
    }
}

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