return the set of all option arguments present on the command line . concode_field_sep Map<String,List<String>> optionArgs concode_elem_sep List<String> nonOptionArgs concode_field_sep void addOptionArg concode_elem_sep List<String> getOptionValues concode_elem_sep void addNonOptionArg concode_elem_sep boolean containsOption concode_elem_sep List<String> getNonOptionArgs
Set < String > function ( ) { return Collections . unmodifiableSet ( this . optionArgs . keySet ( ) ) ; }