Here you can find the source of lastElement(List
public static <T> T lastElement(List<T> c)
//package com.java2s; /******************************************************************************* * Copyright (c) 2010-2015 BSI Business Systems Integration AG. * 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:/*from w w w . j a v a2 s . c o m*/ * BSI Business Systems Integration AG - initial API and implementation ******************************************************************************/ import java.util.Collection; import java.util.List; import java.util.SortedMap; public class Main { public static <T> T lastElement(List<T> c) { if (isEmpty(c)) { return null; } return c.get(c.size() - 1); } public static <T, U> U lastElement(SortedMap<T, U> m) { if (m == null || m.isEmpty()) { return null; } return m.get(m.lastKey()); } public static boolean isEmpty(Collection<?> c) { return c == null || c.isEmpty(); } public static <T> int size(Collection<T> list) { if (list == null) { return 0; } return list.size(); } }