question: public static final boolean validateGroupName ( String sGroupName ) { if ( sGroupName . length ( ) == 0 ) { return false ; } return sGroupName . matches ( "^.{8}$" ) ; }
target:  Validates a Duplex Group Name. <p> A valid Duplex Group Name is an 8 character string. The calling method should append spaces or truncate to give correct length if necessary. <p>