if ( slashPos == -1 ) slashPos = filePathName.lastIndexOf( '/' );
int backSlashPos = filePathName.lastIndexOf( '/' );  slashPos = slashPos > backSlashPos ? slashPos : backSlashPos;
	public static String extractFileNameWithSuffix( String filePathName )	{		if ( filePathName == null )			return null;		int slashPos = filePathName.lastIndexOf( '\\' );		if ( slashPos == -1 )			slashPos = filePathName.lastIndexOf( '/' );		return filePathName.substring( slashPos > 0 ? slashPos + 1 : 0 );	}