question: @ Override public Enumeration < Option > listOptions ( ) { Vector < Option > newVector = new Vector < Option > ( 8 ) ; newVector . addElement ( new Option ( "\tUse conservative forward search" , "-C" , 0 , "-C" ) ) ; newVector . addElement ( new Option ( "\tUse a backward search instead of a" + "\n\tforward one." , "-B" , 0 , "-B" ) ) ; newVector . addElement ( new Option ( "\tSpecify a starting set of attributes." + "\n\tEg. 1,3,5-7." , "P" , 1 , "-P <start set>" ) ) ; newVector . addElement ( new Option ( "\tProduce a ranked list of attributes." , "R" , 0 , "-R" ) ) ; newVector . addElement ( new Option ( "\tSpecify a theshold by which attributes" + "\n\tmay be discarded from the ranking." + "\n\tUse in conjuction with -R" , "T" , 1 , "-T <threshold>" ) ) ; newVector . addElement ( new Option ( "\tSpecify number of attributes to select" , "N" , 1 , "-N <num to select>" ) ) ; newVector . addElement ( new Option ( "\t" + numExecutionSlotsTipText ( ) + " (default 1)\n" , "-num-slots" , 1 , "-num-slots <int>" ) ) ; newVector . addElement ( new Option ( "\tPrint debugging output" , "D" , 0 , "-D" ) ) ; return newVector . elements ( ) ; }
target:  Returns an enumeration describing the available options.