Iterator iterator = itemHandle.getColumnBindings( ).iterator( );
Iterator iterator = getColumnDataBindings( );
	public final String[] getPreviewHeader( ) throws ChartException	{		Iterator iterator = itemHandle.getColumnBindings( ).iterator( );		ArrayList list = new ArrayList( );		while ( iterator.hasNext( ) )		{			list.add( ( (ComputedColumnHandle) iterator.next( ) ).getName( ) );		}		return (String[]) list.toArray( new String[0] );	}