Here you can find the source of getYesterdayDateAsString()
public static String getYesterdayDateAsString()
//package com.java2s; /**/*from w w w .j av a 2 s. c o m*/ * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this file, * You can obtain one at http://mozilla.org/MPL/2.0/. */ import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; public class Main { public static final String mysqlDateFormat = "yyyy-MM-dd"; /** * get the yesterday's date as string using the mysql date format yyyy-MM-dd **/ public static String getYesterdayDateAsString() { // get a calendar instance, which defaults to "now" Calendar calendar = Calendar.getInstance(); // add one day to the date/calendar calendar.add(Calendar.DAY_OF_YEAR, -1); // now get "yesterday" Date yesterday = calendar.getTime(); // get a SimpleDateFormat instance, passing the mysql date format as parameter SimpleDateFormat simpleDateFormat = new SimpleDateFormat(mysqlDateFormat); // return date as string return simpleDateFormat.format(yesterday); } }