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ItemSelectable.java

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/*

* Copyright (c) 1996, 2000, Oracle and/or its affiliates. All rights reserved.

* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

*

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*/

package java.awt;

import java.awt.event.*;

/**

* The interface for objects which contain a set of items for

* which zero or more can be selected.

*

* @author Amy Fowler

*/

public interface ItemSelectable {

/**

* Returns the selected items or <code>null</code> if no

* items are selected.

*/

public Object[] getSelectedObjects();

/**

* Adds a listener to receive item events when the state of an item is

* changed by the user. Item events are not sent when an item's

* state is set programmatically. If <code>l</code> is

* <code>null</code>, no exception is thrown and no action is performed.

*

* @param l the listener to receive events

* @see ItemEvent

*/

public void addItemListener(ItemListener l);

/**

* Removes an item listener.

* If <code>l</code> is <code>null</code>,

* no exception is thrown and no action is performed.

*

* @param l the listener being removed

* @see ItemEvent

*/

public void removeItemListener(ItemListener l);

}