Here you can find the source of getFraction(BigDecimal b)
static BigDecimal getFraction(BigDecimal b)
//package com.java2s; /*/* w w w . ja va 2 s . c o m*/ * The MIT License (MIT) * * Copyright (c) 2015 socraticphoenix@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. * * @author Socratic_Phoenix (socraticphoenix@gmail.com) */ import java.math.BigDecimal; public class Main { static BigDecimal getFraction(BigDecimal b) { return b.abs().subtract(b.abs().setScale(0, BigDecimal.ROUND_FLOOR).abs()).abs(); } }