sets the stage of this dialog . concode_field_sep ComboBox<String> categoryField concode_elem_sep TextField distributionKindField concode_elem_sep Item item concode_elem_sep Stage dialogStage concode_elem_sep TextField useField concode_elem_sep boolean okClicked concode_elem_sep TextField dateField concode_elem_sep TextField amountField concode_field_sep void handleCancel concode_elem_sep boolean isInputValid concode_elem_sep void initialize concode_elem_sep boolean isOkClicked concode_elem_sep void handleOk concode_elem_sep void setItem
void function ( Stage arg0 ) { this . dialogStage = arg0 ; }