Here you can find the source of getDateFromRank(BigDecimal rank)
public static Date getDateFromRank(BigDecimal rank)
//package com.java2s; /*//from ww w . jav a2s. c om * Copyright 2007 Open Source Applications Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.math.BigDecimal; import java.util.Date; public class Main { public static Date getDateFromRank(BigDecimal rank) { return new Date(rank.negate().scaleByPowerOfTen(3).longValue()); } }