Here you can find the source of getYesterdayFormat(String format)
public static String getYesterdayFormat(String format)
//package com.java2s; /*/* w w w . ja va2s.c om*/ * Cerberus Copyright (C) 2013 vertigo17 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This file is part of Cerberus. * * Cerberus is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Cerberus 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Cerberus. If not, see <http://www.gnu.org/licenses/>. */ import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; public class Main { public static String getYesterdayFormat(String format) { // Calculating today + n minutes. // Date today = new Date(); // Getting now. SimpleDateFormat formater; // Define the MySQL Format. formater = new SimpleDateFormat(format); Calendar cal = Calendar.getInstance(); cal.setTime(today); cal.add(Calendar.HOUR, -24); return formater.format(cal.getTime()); } }