Here you can find the source of getTwoDay(String sj1, String sj2)
public static String getTwoDay(String sj1, String sj2)
//package com.java2s; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; public class Main { public static String getTwoDay(String sj1, String sj2) { SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd"); long day = 0; try {//from w ww . java 2 s .c o m java.util.Date date = myFormatter.parse(sj1); java.util.Date mydate = myFormatter.parse(sj2); day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000); } catch (Exception e) { return ""; } return day + ""; } public static String getTime() { Date currentTime = new Date(); SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String dateString = formatter.format(currentTime); String min; min = dateString.substring(14, 16); return min; } public static String format(java.util.Date date, String format, Calendar calendar) { String result = ""; try { if (date != null) { java.text.SimpleDateFormat sdf = new java.text.SimpleDateFormat(format); if (calendar != null) { sdf.setCalendar(calendar); } result = sdf.format(date); } } catch (Exception e) { } return result; } public static String format(java.util.Date date, String format) { return format(date, format, null); } public static String format(long times, String format) { Calendar calendar = Calendar.getInstance(); calendar.setTimeInMillis(times); return format(calendar.getTime(), format); } }