Here you can find the source of isDayChanged(long lastScan)
@SuppressWarnings("deprecation") public static boolean isDayChanged(long lastScan)
//package com.java2s; /*//from ww w .ja va 2s. c o m * The MIT License (MIT) * * Copyright (c) 2010-2014 Carnegie Mellon University * * 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.util.Date; public class Main { @SuppressWarnings("deprecation") public static boolean isDayChanged(long lastScan) { Date last = new Date(lastScan); Date now = new Date(); long lastlong = Date.UTC(last.getYear(), last.getMonth(), last.getDay(), 0, 0, 0); long nowlong = Date.UTC(now.getYear(), now.getMonth(), now.getDay(), 0, 0, 0); return lastlong != nowlong; } }