Here you can find the source of getDayOfMonthPostfix(Calendar cal)
private static String getDayOfMonthPostfix(Calendar cal)
//package com.java2s; /**// w ww . ja va 2 s .c o m * Tysan Clan Website * Copyright (C) 2008-2013 Jeroen Steenbeeke and Ties van de Ven * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.util.Calendar; public class Main { private static String getDayOfMonthPostfix(Calendar cal) { String postfix = "th"; switch (cal.get(Calendar.DAY_OF_MONTH)) { case 1: case 21: case 31: postfix = "st"; break; case 2: case 22: postfix = "nd"; break; case 3: case 23: postfix = "rd"; break; } return postfix; } }