Java Percentage Format percentageAsString(double input)

Description

Format the input percentage as a string (using the default locale).

License

Open Source License

Declaration

public static String percentageAsString(double input) 

Method Source Code

//package com.java2s;
/*/*from www .ja  v  a  2 s  .co  m*/
 * RHQ Management Platform
 * Copyright (C) 2005-2008 Red Hat, Inc.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation, and/or the GNU Lesser
 * General Public License, version 2.1, also as published by the Free
 * Software Foundation.
 *
 * This program 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 General Public License and the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License
 * and the GNU Lesser General Public License along with this program;
 * if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

import java.text.NumberFormat;

public class Main {
    /**
     * Constant value representing "not a number".
     */
    public static final Number NaN = Double.NaN;

    /**
     * Format the <code>input</code> percentage as a string (using the default locale). If the <code>input</code>
     * percentage is <code>{@link Double#NaN}</code>, return null.
     */
    public static String percentageAsString(double input) {
        return _format(input, NumberFormat.getPercentInstance());
    }

    private static String _format(double input, NumberFormat fmt) {
        if (NaN.doubleValue() != input) {
            return fmt.format(input);
        } else {
            return null;
        }
    }
}

Related

1. numberToPercent2Scale(Double number)
2. percent(double number)
3. percent(double p1, double p2)
4. percentage(Double v, String postfix)
5. percentage(float f)
6. percentageFormat(BigDecimal value)
7. percentDecimalFormat(final double no)
8. percentFormat()
9. percentFormat(BigDecimal interestRate)