Java Locale Format formatPCT(Object num)

Description

Format percentage to two decimal places, like xx.xx%.

License

Apache License

Declaration

public static String formatPCT(Object num) 

Method Source Code

//package com.java2s;
/**//  ww  w  .  j  ava 2s.co  m
 *  Copyright 2009 Welocalize, Inc.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *
 *  You may obtain a copy of the License at
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

import java.text.DecimalFormat;

import java.util.Locale;

public class Main {
    /**
     * Format percentage to two decimal places, like xx.xx%.
     * If the input is not a Number, return toString(), avoid throw exception.
     */
    public static String formatPCT(Object num) {
        String result;
        if (num instanceof Number) {
            Locale en = new Locale("en");
            DecimalFormat df = (DecimalFormat) DecimalFormat.getInstance(en);
            df.applyPattern("0.00");

            // Changes default Rounding Mode
            //            df.setRoundingMode(RoundingMode.DOWN);
            result = df.format(num) + "%";
        } else {
            result = num.toString();
            if (!result.endsWith("%")) {
                result = result + "%";
            }
        }

        return result;
    }
}

Related

1. formatNumber(Object value, Locale locale)
2. formatNumber(Object value, String numberFormat)
3. formatNumberSameWidth(final double v)
4. formatNumberUk(double inNumber, int inDecimalPlaces)
5. formatNumberWithThousandSeparator(long number)
6. formatPersent(Object input)
7. formatSmartDate(Date date)
8. formatString(Object[] args)
9. formatString(String pattern, Object... args)