Here you can find the source of dateFormat(Date date, String pattern)
public static String dateFormat(Date date, String pattern)
//package com.java2s; import java.text.SimpleDateFormat; import java.util.Date; public class Main { public static String dateFormat(Date date, String pattern) { SimpleDateFormat df = new SimpleDateFormat(pattern); return df.format(date); }/*from www . j a va2 s . c o m*/ public static String dateFormat(long date, String pattern) { return dateFormat(new Date(date), pattern); } }