question: @ Override public Enumeration < Option > listOptions ( ) { Vector < Option > result = new Vector < Option > ( ) ; result . addElement ( new Option ( "\tSQL query to execute." , "Q" , 1 , "-Q <query>" ) ) ; result . addElement ( new Option ( "\tReturn sparse rather than normal instances." , "S" , 0 , "-S" ) ) ; result . addElement ( new Option ( "\tThe username to use for connecting." , "U" , 1 , "-U <username>" ) ) ; result . addElement ( new Option ( "\tThe password to use for connecting." , "P" , 1 , "-P <password>" ) ) ; result . add ( new Option ( "\tThe custom properties file to use instead of default ones,\n" + "\tcontaining the database parameters.\n" + "\t(default: none)" , "custom-props" , 1 , "-custom-props <file>" ) ) ; result . addElement ( new Option ( "\tEnables debug output." , "D" , 0 , "-D" ) ) ; return result . elements ( ) ; }
target:  Returns an enumeration describing the available options <p>