1 /* 2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 /** 26 * <em>Functional interfaces</em> provide typing for lambda expressions. Each 27 * functional interface provides a single abstract method to which the lambda 28 * expression's parameter and return types are matched. 29 * 30 * <p>The interfaces in this package are all functional interfaces used with the 31 * collections and streams frameworks. The operation identified by each 32 * interface is generally applied to a collection or stream of objects. 33 * 34 * <p>All functional interface implementations are expected to: 35 * <ul> 36 * <li>When used for aggregate operations upon many elements it should not be 37 * assumed that the operation will be called upon elements in any specific order. 38 * </li> 39 * </ul> 40 */ 41 package java.util.function;