question: @ Override public Enumeration < Option > listOptions ( ) { Vector < Option > newVector = new Vector < Option > ( ) ; newVector . add ( new Option ( "\tDistance function to use.\n" + "\t(default: weka.core.EuclideanDistance)" , "A" , 1 , "-A <classname and options>" ) ) ; newVector . add ( new Option ( "\tCalculate performance statistics." , "P" , 0 , "-P" ) ) ; return newVector . elements ( ) ; }
target:  Returns an enumeration describing the available options.