java - Settings SpinnerDateModel's start, end, and CalendarField returns invalid calendarField exception -


i need in settings start value, end value , step or increments of jspinner containing time value in "hh:mm" format.

i've been trying fix error 2 hours now. 

calendar value = calendar.getinstance(); value.set(calendar.hour_of_day, 7); value.set(calendar.minute, 0);  calendar start = calendar.getinstance(); start.set(calendar.hour_of_day, 7); start.set(calendar.minute, 0);  calendar end = calendar.getinstance(); end.set(calendar.hour_of_day, 18); end.set(calendar.minute, 0);  calendar step = calendar.getinstance(); step.set(calendar.hour_of_day,00); step.set(calendar.minute, 15);  model = new spinnerdatemodel(); model.setvalue(value.gettime()); model.setstart(start.gettime()); model.setend(end.gettime()); model.setcalendarfield(step.get(calendar.minute));  spinner = new jspinner(model);  editor = new jspinner.dateeditor(spinner, "hh:mm"); editor.gettextfield().seteditable(true); spinner.seteditor(editor);

what want achieve spinner's

value = 7:00am

start = 7:00am

end = 6pm or 18:00

increments/step = 7:00 -> 7:15 -> 7:30 -> 7:45

the value working correctly , starts 7:00am however, i'm having problems setting value start, end , step

when run code, exception error message'

exception in thread "awt-eventqueue-0" java.lang.illegalargumentexception: invalid calendarfield

how can set jspinner?

thank you.


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