Here you can find the source of formatDate(Date date)
public static Date formatDate(Date date)
//package com.java2s; //License from project: Apache License import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Date; public class Main { public static Date formatDate(Date date) { return parse(format(date), "yyyy-MM-dd"); }/* w w w .j av a2s . c o m*/ public static Date parse(String dateString) { return parse(dateString, "yyyy-MM-dd HH:mm:ss"); } public static Date parse(String dateString, String pattern) { DateFormat df = new SimpleDateFormat(pattern); Date date = null; try { date = df.parse(dateString); } catch (Throwable t) { date = null; } return date; } public static String format(Date date) { if (date == null) { return ""; } DateFormat df = new SimpleDateFormat("yyyy-MM-dd"); return df.format(date); } public static String format(Date date, String pattern) { if (date == null) { return ""; } DateFormat df = new SimpleDateFormat(pattern); return df.format(date); } }