Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.math.BigDecimal;

public class Main {
    /**
     * Convert rate from double.
     * 
     * @param value
     *            the value
     * @return the string
     */
    public static String convertRateFromDouble(double value) {
        return String.valueOf(round(value * 100, 2));
    }

    public static double round(double v, int scale) {
        if (scale < 0) {
            throw new IllegalArgumentException("The scale must be a positive integer or zero");
        }
        BigDecimal b = new BigDecimal(Double.toString(v));
        BigDecimal one = new BigDecimal("1");
        return b.divide(one, scale, BigDecimal.ROUND_HALF_UP).doubleValue();
    }
}