Here you can find the source of getYearString()
public static String getYearString()
//package com.java2s; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.*; public class Main { public static final String yearFormat = "yyyy"; public static String getYearString() { return getFormat(yearFormat).format(new Date()); }/*from w ww. j a v a2 s .c o m*/ public static final String format(Date date, String formate) { if (date == null) { return ""; } return getFormat(formate).format(date); } public static final String format(Long dateTmie, String formate) { Date date = new Date(dateTmie); return getFormat(formate).format(date); } public static final DateFormat getFormat(String format) { return new SimpleDateFormat(format); } }