question: public static String convertSystemNameToAlternate ( String systemName ) { if ( ! validSystemNameFormat ( systemName , systemName . charAt ( 1 ) , "A" ) ) { return "" ; } String altName = "" ; altName = systemName ; return altName ; }
target:  Public static method to convert one format Acela system name for the alternate format. If the supplied system name does not have a valid format, or if there is no representation in the alternate naming scheme, an empty string is returned.