Java tutorial
//package com.java2s; /******************************************************************************* * Copyright (c) 2015 Pivotal, Inc. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Pivotal, Inc. - initial API and implementation *******************************************************************************/ import java.util.Collection; public class Main { public static <E> boolean hasElements(Collection<E> c) { return c != null && !c.isEmpty(); } }