Here you can find the source of multiply(BigDecimal left, BigDecimal right)
public static BigDecimal multiply(BigDecimal left, BigDecimal right)
//package com.java2s; /**/*from ww w . ja va2 s . co m*/ * * Copyright (c) 2014, the Railo Company Ltd. 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. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see <http://www.gnu.org/licenses/>. * **/ import java.math.BigDecimal; import java.math.MathContext; public class Main { public static BigDecimal multiply(BigDecimal left, BigDecimal right) { try { return left.multiply(right, MathContext.UNLIMITED); } catch (ArithmeticException ex) { return left.multiply(right, MathContext.DECIMAL128); } } }