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/**
* Shutdown Hook Presentation
*
* @author Ken Wu
*/
public class ShutdownHookTest {
 
private static final void shutdownCallback() {
System.out.println("Shutdown callback is invoked.");
}
 
public static void main(String[] args) throws InterruptedException {
Runtime.getRuntime().addShutdownHook(new Thread() {
 
@Override
public void run() {
shutdownCallback();
}
 
});
Thread.sleep(10000);
}
 
}
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