question: @ Override public Enumeration < Option > listOptions ( ) { Vector < Option > result = enumToVector ( super . listOptions ( ) ) ; result . add ( new Option ( "\tThe noise percentage. (default " + defaultNoisePercent ( ) + ")" , "N" , 1 , "-N <num>" ) ) ; return result . elements ( ) ; }
target:  Returns an enumeration describing the available options.