FormatTool.java

/*
* Copyright 2013 Simon Thiel
*
* This file is part of SitJar.
*
* SitJar is free software: you can redistribute it and/or modify
* it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* 
* SitJar is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU Lesser General Public License for more details.
* 
* You should have received a copy of the GNU Lesser General Public License
* along with SitJar. If not, see <http://www.gnu.org/licenses/lgpl.txt>.
*/

/*
 *  @author Simon Thiel <simon.thiel at gmx.de>
 */
package sit.string;

import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;

/**
 *
 * @author Simon Thiel <simon.thiel at gmx.de>
 */
public class FormatTool {

    public static String getFormD(double d) {
        return getFormD(d, 2);
    }

    public static String getFormD(double d, int numOfDecimalPlace) {
        return getFormD(d, numOfDecimalPlace, '.');
    }

    public static String getFormD(double d, int numOfDecimalPlace, char decimalSeparator) {
        DecimalFormatSymbols usedFormatSymbols =
                new DecimalFormatSymbols();
        usedFormatSymbols.setDecimalSeparator(decimalSeparator);

        StringBuilder pattern = new StringBuilder("#.");
        for (int i = 0; i < numOfDecimalPlace; i++) {
            pattern.append("#");
        }

        return (new DecimalFormat(pattern.toString(), usedFormatSymbols).format(d));
    }
}