question: create specifying model and formatter . concode_field_sep PlaceHolder placeHolder concode_field_sep JDatePanel createJDatePanel concode_elem_sep JDatePanel createJDatePanel concode_elem_sep DateModel<?> createDateModel concode_elem_sep DateModel<?> createDateModel
target: JDatePicker function ( DateModel < ? > arg0 , JFormattedTextField . AbstractFormatter arg1 ) { return new JDatePickerImpl ( new JDatePanelImpl ( arg0 ) , arg1 ) ; }