Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.commons.collections4; /** * Defines a simple key value pair. * <p> * A Map Entry has considerable additional semantics over and above a simple * key-value pair. This interface defines the minimum key value, with just the * two get methods. * * @param <K> the type of the key * @param <V> the type of the value * @since 3.0 * @version $Id: KeyValue.java 1477779 2013-04-30 18:55:24Z tn $ */ public interface KeyValue<K, V> { /** * Gets the key from the pair. * * @return the key */ K getKey(); /** * Gets the value from the pair. * * @return the value */ V getValue(); }