Here you can find the source of daysBetween(Date d1, Date d2)
public static long daysBetween(Date d1, Date d2)
//package com.java2s; /******************************************************************************* * Copyright 2014 Likya Teknoloji//from ww w.ja v a2s . c om * * 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.text.SimpleDateFormat; import java.util.Date; public class Main { public static long daysBetween(Date d1, Date d2) { //return ((d2.getTime() - d1.getTime() + ONE_HOUR) / (ONE_HOUR * 24)); return ((d2.getTime() - d1.getTime() + (60 * 60 * 1000L)) / (60 * 60 * 1000L * 24)); } public static String getTime(Date executionTime) { SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss"); //$NON-NLS-1$ return formatter.format(executionTime); } }