Java tutorial
/* * @(#)MathUtil.java 1.0 Apr 26, 2008 * * The MIT License * * Copyright (c) 2008 Malachi de AElfweald <malachid@gmail.com> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ import java.math.BigDecimal; import java.math.BigInteger; import java.math.RoundingMode; public class Util { protected static BigInteger BigIntegerZERO = BigInteger.ZERO; protected static BigInteger BigIntegerONE = BigInteger.ONE; protected static BigInteger BigIntegerTWO = BigInteger.valueOf(2); protected static BigInteger BigIntegerTHREE = BigInteger.valueOf(3); protected static BigInteger FactorialBreakpoint = BigInteger.valueOf(96); protected static BigDecimal BigDecimalZERO = BigDecimal.ZERO; protected static BigDecimal BigDecimalONE = BigDecimal.ONE; protected static BigDecimal BigDecimalTWO = new BigDecimal(2); protected static BigDecimal BigDecimalFOUR = new BigDecimal(4); public static boolean isDivisible(BigInteger isThisNumberDivisible, BigInteger byThisNumber) { return isThisNumberDivisible.mod(byThisNumber).equals(BigIntegerZERO); } }