Here you can find the source of addOneDayForamt(String date, String format, Integer addDate)
public static String addOneDayForamt(String date, String format, Integer addDate) throws ParseException
//package com.java2s; //License from project: Open Source License import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; public class Main { public static String addOneDayForamt(String date, String format, Integer addDate) throws ParseException { Calendar calendar = Calendar.getInstance(); calendar.setTime(new SimpleDateFormat(format).parse(date)); calendar.add(Calendar.DATE, addDate); String retDate = new SimpleDateFormat(format).format(calendar.getTime()); return retDate; }/*from w w w . j av a2 s.c o m*/ }