Java Percentage Format formatPercent(Double num1, Double num2)

Description

format Percent

License

Apache License

Declaration

public final static String formatPercent(Double num1, Double num2) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.text.DecimalFormat;
import java.text.NumberFormat;

public class Main {
    public final static String formatPercent(Integer num1, Integer num2) {
        return formatPercent(num1, num2, "0.00%");
    }/*from ww w .  ja va  2s .co  m*/

    public final static String formatPercent(Integer num1, Integer num2, String format) {
        if (num1 == null || num2 == null || num2 == 0)
            return "?";
        double div = (double) num1 / num2;
        DecimalFormat myformat = (DecimalFormat) NumberFormat.getPercentInstance();
        myformat.applyPattern(format);
        return myformat.format(div);
    }

    public final static String formatPercent(Double num1, Double num2) {
        if (num1 == null || num2 == null || num2 == 0)
            return "";
        String format = "0.00%";
        if (num1.intValue() == num1.doubleValue() && num2.intValue() == num2.doubleValue()) {
            format = "0%";
        }
        return formatPercent(num1, num2, format);
    }

    public final static String formatPercent(Double num1, Double num2, String format) {
        if (num1 == null || num2 == null || num2 == 0)
            return "";
        double div = num1 / num2;
        DecimalFormat myformat = (DecimalFormat) NumberFormat.getPercentInstance();
        myformat.applyPattern(format);
        return myformat.format(div);
    }
}

Related

1. formatAsPercent(double value, double maxValue, int fractionDigits)
2. formatDecimal(double percent)
3. formatDoubleAsPercentString(Double d)
4. formatMicrosAsPercentage(long micros)
5. formatPercent(double done, int digits)
6. formatPercent(double p_double, int p_decimals)
7. formatPercent(double percent)
8. formatPercent(double v)
9. formatPercent(double v)