Listing 4. MyMulticaster1 Class

import java.awt.* ;
import java.util.* ;
public class MyMulticaster1 extends 
 AWTEventMulticaster implements  EmailEntryListener
{
	// need a constructor. 
	public MyMulticaster1( EventListener l1, 
		EventListener l2 )
	{
	super( l1,l2 ) ;
	}
	// email entry events
	public static EmailEntryListener add( 
		EmailEntryListener x, 
		EmailEntryListener y )
	{
		return ( EmailEntryListener )
			addInternal( x, y ) ;
	}
	public static EmailEntryListener remove( 
		EmailEntryListener x, 
		EmailEntryListener y )
	{
		return ( EmailEntryListener )
			removeInternal( x, y ) ;
	}
	public void done( EmailEntryEvent e ) {
		((EmailEntryListener)a).done( e ) ;
		((EmailEntryListener)b).done( e ) ;
	}
	public void cancel( EmailEntryEvent e ) {
		((EmailEntryListener)a).cancel( e ) ;
		((EmailEntryListener)b).cancel( e ) ;
	}
}