Java tutorial
//package com.java2s; /******************************************************************************* * Copyright (c) 2010 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: * BSI Business Systems Integration AG - initial API and implementation ******************************************************************************/ import java.util.SortedMap; import java.util.TreeMap; public class Main { public static <T extends Comparable, U> SortedMap<T, U> putObjectSortedMap(SortedMap<T, U> map, T key, U value) { if (map == null) { map = new TreeMap<T, U>(); } map.put(key, value); return map; } }