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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * accompanied this code).

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package java.util.prefs;

/**

 * A listener for receiving preference change events.

 *

 * @author  Josh Bloch

 * @see Preferences

 * @see PreferenceChangeEvent

 * @see NodeChangeListener

 * @since   1.4

 */

@FunctionalInterface

public interface PreferenceChangeListener extends java.util.EventListener {

    /**

     * This method gets called when a preference is added, removed or when

     * its value is changed.

     * <p>

     * @param evt A PreferenceChangeEvent object describing the event source

     *          and the preference that has changed.

     */

    void preferenceChange(PreferenceChangeEvent evt);

}