Java tutorial
//package com.java2s; /* * Santiago Carrillo Barbosa - Android Calendar Picker * email: sancarbar@gmail.com * * https://github.com/sancarbar/Android-Calendar-Picker * * (C) 2013, Santiago Carrillo * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 3 of the License. * * This library 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 * Lesser General Public License for more details. */ import java.text.DateFormatSymbols; public class Main { private static final DateFormatSymbols dateFormatSymbols = new DateFormatSymbols(); public static String getShortWeekdayName(int day) { if (day < 1 || day > 7) throw new IndexOutOfBoundsException("Invalid index, value must be between 1 and 7"); String dayName = dateFormatSymbols.getShortWeekdays()[day]; return dayName.replace(dayName.charAt(0), Character.toUpperCase(dayName.charAt(0))); } }