Here you can find the source of isWeekend(Calendar dateCal)
public static boolean isWeekend(Calendar dateCal)
//package com.java2s; /*//from ww w. ja v a 2 s.c o m * Copyright (C) 2009-2015 SM2 SOFTWARE & SERVICES MANAGEMENT * 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 has been created in the hope that it will be useful. * It is distributed WITHOUT ANY WARRANTY of any Kind, * 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/. * * For more information, please contact SM2 Software & Services Management. * Mail: info@talaia-openppm.com * Web: http://www.talaia-openppm.com * * Module: utils * File: DateUtil.java * Create User: javier.hernandez * Create Date: 06/03/2015 14:35:37 */ import java.util.*; public class Main { public static boolean isWeekend(Calendar dateCal) { return (dateCal.get(Calendar.DAY_OF_WEEK) == Calendar.SATURDAY || dateCal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY); } }