JavaFX使用TableView的注意事项

//表格
    private final TableView<Date> table = new TableView<>();
    //数据来源
    private final ObservableList<Date> date=
            FXCollections.observableArrayList();

TableColumn firstCol = new TableColumn("进程id");
        firstCol.setMinWidth(100);
        firstCol.setCellValueFactory(
                new PropertyValueFactory<>("firstCol"));
        firstCol.setCellFactory(TextFieldTableCell.forTableColumn());//设置该列表格可编辑
表格类 Data类
public static class Date{
        private final SimpleStringProperty firstCol;
        private final SimpleStringProperty secondaryCol;
        private final SimpleStringProperty midCol;
        private final SimpleStringProperty lastCol;
        public Date(String id, String arrivetime, String midCol, String zztime) {
            this.firstCol = new SimpleStringProperty(id);
            this.secondaryCol = new SimpleStringProperty(arrivetime);
            this.midCol = new SimpleStringProperty(midCol);
            this.lastCol = new SimpleStringProperty(zztime);
        }
        public String getFirstCol() {
            return firstCol.get();
        }
        public SimpleStringProperty firstColProperty() {
            return firstCol;
        }
        public void setFirstCol(String firstCol) {
            this.firstCol.set(firstCol);
        }
        public String getSecondaryCol() {
            return secondaryCol.get();
        }
        public SimpleStringProperty secondaryColProperty() {
            return secondaryCol;
        }
        public void setSecondaryCol(String secondaryCol) {
            this.secondaryCol.set(secondaryCol);
        }
        public String getMidCol() {
            return midCol.get();
        }
        public SimpleStringProperty midColProperty() {
            return midCol;
        }
        public void setMidCol(String midCol) {
            this.midCol.set(midCol);
        }
        public String getLastCol() {
            return lastCol.get();
        }
        public SimpleStringProperty lastColProperty() {
            return lastCol;
        }
        public void setLastCol(String lastCol) {
            this.lastCol.set(lastCol);
        }
    }