Java tutorial
//package com.java2s; /** * Odoo, Open Source Management Solution * Copyright (C) 2012-today Odoo SA (<http:www.odoo.com>) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http:www.gnu.org/licenses/> * * Created on 31/12/14 11:36 AM */ import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.TimeZone; public class Main { /** * Returns date before given days * * @param days days to before * @return string date string before days */ public static String getDateBefore(int days) { Date today = new Date(); Calendar cal = new GregorianCalendar(); cal.setTime(today); cal.add(Calendar.DAY_OF_MONTH, days * -1); Date date = cal.getTime(); SimpleDateFormat gmtFormat = new SimpleDateFormat(); gmtFormat.applyPattern("yyyy-MM-dd 00:00:00"); TimeZone gmtTime = TimeZone.getTimeZone("GMT"); gmtFormat.setTimeZone(gmtTime); return gmtFormat.format(date); } }