Here you can find the source of millisecondToDate(String str)
public static String millisecondToDate(String str)
//package com.java2s; //License from project: Apache License import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.GregorianCalendar; public class Main { public static String millisecondToDate(String str) { long ms = Long.parseLong(str); Date dat = new Date(ms * 1000); // //System.out.println(dat); GregorianCalendar gc = new GregorianCalendar(); gc.setTime(dat);/* w w w .j ava 2s . c om*/ // //System.out.println(gc.getTime()); SimpleDateFormat format = new SimpleDateFormat( "yyyy-MM-dd hh:mm:ss"); String sb = format.format(gc.getTime()); return sb; } public static Date getTime() { try { return getDate("yyyy-MM-dd HH:mm:ss"); } catch (ParseException e) { e.printStackTrace(); } return null; } public static Date getDate() { try { return getDate("yyyy-MM-dd"); } catch (ParseException e) { e.printStackTrace(); } return null; } public static Date getDate(String format) throws ParseException { SimpleDateFormat df = new SimpleDateFormat(format); Date date = new Date(System.currentTimeMillis()); return convertStringToDate(df.format(date), format); } public static Date convertStringToDate(String time, String format) throws ParseException { if (format == null) { format = "yyyy-MM-dd"; } SimpleDateFormat sdf = new SimpleDateFormat(format); return sdf.parse(time); } }