Here you can find the source of formatDate6(Date date)
public static String formatDate6(Date date)
//package com.java2s; //License from project: Apache License import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class Main { public static SimpleDateFormat dateFormat4 = new SimpleDateFormat( "yyyy-MM-dd"); public static SimpleDateFormat dateFormat6 = new SimpleDateFormat( "yyyy-MM"); public static String formatDate6(Date date) { return dateFormat6.format(date); }//www . j av a2s . c om public static Date format(String formatString, String dateString) { try { return (new SimpleDateFormat(formatString)).parse(dateString); } catch (ParseException e) { e.printStackTrace(); } return null; } public static Date format(String dateString) { try { return dateFormat4.parse(dateString); } catch (ParseException e) { e.printStackTrace(); } return null; } }