Java Decimal Format numToString(double num)

Description

Format an integer to a string (adding commas)

License

Apache License

Parameter

Parameter	Description
num	The number to format

Return

A formatted string

Declaration

public static String numToString(double num) 

Method Source Code

//package com.java2s;
/*//from w  ww . j a v a2 s. co m
 *    Copyright 2010-2012 University of Toronto
 *
 *    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;

public class Main {
    /**
     * Format an integer to a string (adding commas)
     *
     * @param num The number to format
     * @return A formatted string
     */
    public static String numToString(double num) {
        return numToString(num, 0);
    }

    public static String numToString(double num, int significantdigits) {
        String formatString = "###,###";

        if (significantdigits > 0) {
            formatString += ".";
            for (int i = 0; i < significantdigits; i++) {
                formatString += "#";
            }
        }

        DecimalFormat df = new DecimalFormat(formatString);
        return df.format(num);
    }
}

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4. Julian_Cal(double JDN)
5. listToString(List list)
6. pad(double n)
7. padding(final double number)
8. padToMinWidth(double num, int minWidth)
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