Java tutorial
//package com.java2s; /* * Copyright (C) 2015 Miquel Sas * * 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.awt.Container; public class Main { /** * Check if the container is empty. * * @param container The container. * @return A boolean. */ public static boolean isEmpty(Container container) { return container.getComponentCount() == 0; } }