Here you can find the source of divide(double x, double y, int scale, RoundingMode roundingMode)
public static double divide(double x, double y, int scale, RoundingMode roundingMode)
//package com.java2s; /**/* w w w. j a v a 2 s. c o m*/ * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ import java.math.BigDecimal; import java.math.RoundingMode; public class Main { public static double divide(double x, double y, int scale, RoundingMode roundingMode) { BigDecimal xBigDecimal = new BigDecimal(String.valueOf(x)); BigDecimal yBigDecimal = new BigDecimal(String.valueOf(y)); BigDecimal resultBigDecimal = xBigDecimal.divide(yBigDecimal, scale, roundingMode); return resultBigDecimal.doubleValue(); } public static double divide(int x, int y, int scale, RoundingMode roundingMode) { BigDecimal xBigDecimal = new BigDecimal(String.valueOf(x)); BigDecimal yBigDecimal = new BigDecimal(String.valueOf(y)); BigDecimal resultBigDecimal = xBigDecimal.divide(yBigDecimal, scale, roundingMode); return resultBigDecimal.doubleValue(); } }