Here you can find the source of addDay(String d)
public static Date addDay(String d)
//package com.java2s; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; public class Main { public static final String DATE_FORMAT = "yyyy/MM/dd"; public static Date addDay(String d) { SimpleDateFormat sd = new SimpleDateFormat(DATE_FORMAT); Date daten = null;/*from w ww.j av a 2s . c o m*/ try { daten = sd.parse(d); } catch (ParseException e) { e.printStackTrace(); } Calendar c = Calendar.getInstance(); c.setTime(daten); c.add(Calendar.DATE, 1); Date date = c.getTime(); return date; } }