Java Percentage Format getPercentage(long numerator, long denominator)

Description

Find percentage of numerator of denominator

License

Apache License

Parameter

Parameter	Description
numerator	The numerator
denominator	The denominator

Return

The percentage string of the form `x.yz %`

Declaration

public static String getPercentage(long numerator, long denominator) 

Method Source Code

//package com.java2s;
/*//  w w  w . j av a2 s.  com
 * Copyright 2016 LinkedIn Corp.
 *
 * 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 {
    /**
     * Find percentage of numerator of denominator
     * @param numerator The numerator
     * @param denominator The denominator
     * @return The percentage string of the form `x.yz %`
     */
    public static String getPercentage(long numerator, long denominator) {

        if (denominator == 0) {
            return "NaN";
        }

        double percentage = ((double) numerator / (double) denominator) * 100;

        if ((long) (percentage) == 0) {
            return "0 %";
        }

        DecimalFormat df = new DecimalFormat("0.00");
        return df.format(percentage).concat(" %");
    }
}

Related

1. getOneDecimalPercentFromDouble(double inValue)
2. getPercentage(double number)
3. getPercentage(double number, int fractionDigits)
4. getPercentage(int numerator, int denominator)
5. getPercentage(long duration, long lapso)
6. getPercentageString(double percent)
7. getRoundPercent(double f)
8. numberToPercent2Scale(Double number)
9. percent(double number)