closes the application . concode_field_sep MainApp mainApp concode_field_sep void setMainApp concode_elem_sep void handleSave concode_elem_sep void handleAbout concode_elem_sep void handleOpen concode_elem_sep void handleSaveAs concode_elem_sep void handleShowBirthdayStatistics concode_elem_sep void handleNew
void function ( ) { System . exit ( 0 ) ; }