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* Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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package java.awt.desktop;
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import java.awt.Desktop;
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import java.awt.GraphicsEnvironment;
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import java.awt.HeadlessException;
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* Event sent when the displays attached to the system enter and exit power save
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* @see ScreenSleepListener#screenAboutToSleep(ScreenSleepEvent)
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* @see ScreenSleepListener#screenAwoke(ScreenSleepEvent)
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public final class ScreenSleepEvent extends AppEvent {
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* Use serialVersionUID from JDK 9 for interoperability.
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private static final long serialVersionUID = 7521606180376544150L;
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* Constructs a {@code ScreenSleepEvent}.
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* @throws HeadlessException if {@link GraphicsEnvironment#isHeadless()}
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* returns {@code true}
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* @throws UnsupportedOperationException if Desktop API is not supported on
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* the current platform
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* @see Desktop#isDesktopSupported()
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* @see java.awt.GraphicsEnvironment#isHeadless
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public ScreenSleepEvent() {