void function ( ) { mainApp . getPersonData ( ) . clear ( ) ; mainApp . setPersonFilePath ( null ) ; }
creates an empty address book . 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 handleExit concode_elem_sep void handleShowBirthdayStatistics