Here you can find the source of durationBetween(Timestamp startedAt, Timestamp completedAt)
@Deprecated public static BigDecimal durationBetween(Timestamp startedAt, Timestamp completedAt)
//package com.java2s; /**/* w w w. j ava 2 s . c om*/ * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.math.RoundingMode; import java.sql.Timestamp; public class Main { @Deprecated public static BigDecimal durationBetween(Timestamp startedAt, Timestamp completedAt) { if (completedAt == null) { return null; } long millis = completedAt.getTime() - startedAt.getTime(); return new BigDecimal(millis).divide(new BigDecimal(1000)).setScale(3, RoundingMode.HALF_EVEN); } }