/* * Copyright (c) 1998, 2000, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */package javax.swing; /** * A mutable version of <code>ComboBoxModel</code>. * * @param <E> the type of the elements of this model * * @author Tom Santos */ public interface MutableComboBoxModel<E> extends ComboBoxModel<E> {     /**     * Adds an item at the end of the model. The implementation of this method     * should notify all registered <code>ListDataListener</code>s that the     * item has been added.     *     * @param item the item to be added     */    public void addElement( E item );     /**     * Removes an item from the model. The implementation of this method should     * should notify all registered <code>ListDataListener</code>s that the     * item has been removed.     *     * @param obj the <code>Object</code> to be removed     */    public void removeElement( Object obj );     /**     * Adds an item at a specific index.  The implementation of this method     * should notify all registered <code>ListDataListener</code>s that the     * item has been added.     *     * @param item  the item to be added     * @param index  location to add the object     */    public void insertElementAt( E item, int index );     /**     * Removes an item at a specific index. The implementation of this method     * should notify all registered <code>ListDataListener</code>s that the     * item has been removed.     *     * @param index  location of the item to be removed     */    public void removeElementAt( int index );}