question: @ Override public Enumeration < Option > listOptions ( ) { Vector < Option > result = new Vector < Option > ( ) ; result . addElement ( new Option ( "\tThe max size of the Ngram (default = 3)." , "max" , 1 , "-max <int>" ) ) ; result . addElement ( new Option ( "\tThe min size of the Ngram (default = 1)." , "min" , 1 , "-min <int>" ) ) ; result . addAll ( Collections . list ( super . listOptions ( ) ) ) ; return result . elements ( ) ; }
target:  Returns an enumeration of all the available options..