Here you can find the source of formatDate(String dateStr, String format, String toFormat)
public static String formatDate(String dateStr, String format, String toFormat)
//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 String formatDate(String dateStr, String format, String toFormat) {/* w ww . j av a2 s . c o m*/ return format(parseDate(dateStr, format), toFormat); } public static String formatDate(Date date) { return formatDateByFormat(date, "yyyy-MM-dd"); } public static String format(Date date, String format) { String result = ""; try { if (date != null) { DateFormat dateFormat = new SimpleDateFormat(format); result = dateFormat.format(date); } } catch (Exception localException) { } return result; } public static String format(Date date) { return format(date, "yyyy-MM-dd"); } public static Date parseDate(String dateStr, String format) { Date date = null; try { SimpleDateFormat dateFormat = new SimpleDateFormat(format); date = dateFormat.parse(dateStr); } catch (Exception localException) { } return date; } public static Date parseDate(String dateStr) { return parseDate(dateStr, "yyyy-MM-dd"); } public static String formatDateByFormat(Date date, String format) { String result = ""; if (date != null) { try { SimpleDateFormat sdf = new SimpleDateFormat(format); result = sdf.format(date); } catch (Exception ex) { ex.printStackTrace(); } } return result; } }