如何在javafx的单元格中显示字符串数组

Question

我有一类动物。具有不同的属性。 我想在不同的单元格中显示所有属性。但是带有array的属性如下所示。我如何实现在单元格中打印数组。

下面是我的代码。 从文件中读取数据，并在initialize方法中将其添加到动物的Arraylist中。 所有功能均通过搜索方法完成。 表列在运行时动态创建。 并将动物的Arraylist传递到可观察列表。 最后，可观察对象设置为表。但是我不知道如何将单元格的值设置为数组，以便它可以在单元格中打印该数组。

package sample;

import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.geometry.Pos;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.VBox;
import javafx.scene.text.Text;
import javafx.stage.Modality;
import javafx.stage.Stage;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.ResourceBundle;

public class FindByNoun implements Initializable {

    private ArrayList<Animal> animals = new ArrayList<>();

    @FXML
    private TextField searchText;

    @FXML
    private Button search;

    @FXML
    private Button back;

    @FXML
    private TableView<Animal> table;

    ObservableList<Animal> obList = FXCollections.observableArrayList();

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        BufferedReader reader;
        try {
            reader = new BufferedReader(new FileReader("animals.csv"));
            reader.readLine();
            String line = reader.readLine();
            while (line != null) {
                String[] tokens = line.split(",");
                String type = tokens[0];

                if (!type.equals("Bird")){
                    String noun = tokens[1];
                    String snoun = tokens[2];
                    double minSize = Double.parseDouble(tokens[3]);
                    double maxSize = Double.parseDouble(tokens[4]);
                    double minWeight = Double.parseDouble(tokens[5]);
                    double maxWeight = Double.parseDouble(tokens[6]);
                    String[] color = tokens[7].split(";");
                    String[] locomotion = tokens[8].split(";");
                    String[] countriesFoundIn = tokens[9].split(";");
                    String[] naturalHabitat = tokens[10].split(";");

                    animals.add(new Animal(type, noun, snoun, minSize, maxSize, minWeight, maxWeight, color, locomotion, countriesFoundIn, naturalHabitat));

                }else{
                    String noun = tokens[1];
                    String snoun = tokens[2];
                    double minSize = Double.parseDouble(tokens[3]);
                    double maxSize = Double.parseDouble(tokens[4]);
                    double minWeight = Double.parseDouble(tokens[5]);
                    double maxWeight = Double.parseDouble(tokens[6]);
                    String[] color = tokens[7].split(";");
                    String[] locomotion = tokens[8].split(";");
                    String[] countriesFoundIn = tokens[9].split(";");
                    String[] naturalHabitat = tokens[10].split(";");
                    String shape = tokens[11];
                    String[] colorsOfFeathers = tokens[12].split(";");
                    double minLengthOfWings = Double.parseDouble(tokens[13]);
                    double maxLengthOfWings = Double.parseDouble(tokens[14]);

                    animals.add(new Bird(type, noun, snoun, minSize, maxSize, minWeight, maxWeight, color, locomotion, countriesFoundIn, naturalHabitat, shape, colorsOfFeathers, minLengthOfWings, maxLengthOfWings));
                }

                line = reader.readLine();
            }
            reader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }


    }// initialize

    public void search(){
        table.getColumns().clear();
        String searchValue = searchText.getText();
        boolean bird = false;
        boolean found = false;
        Animal animalFound = null;
        for (Animal animal: animals){
            String noun = animal.getNoun();
            String snoun = animal.getScientificNoun();
            animalFound = animal;
            if (searchValue.equalsIgnoreCase(noun) || searchValue.equalsIgnoreCase(snoun)) {
                if (animal instanceof Bird) {
                    bird = true;
                }
                found = true;
                break;
            }
        }

        if (found){
            if (bird){
                ArrayList<String> columns = new ArrayList<String>();
                columns.add("col1");
                TableColumn [] tableColumns = new TableColumn[15];
                int columnIndex = 0;
                for(String columName : columns) {
                    tableColumns[columnIndex++] = new TableColumn(columName);
                }
                table.getColumns().removeAll();
                table.getColumns().addAll(tableColumns);
            }else{
                TableColumn<Animal, String> type = new TableColumn<>("Type");
                TableColumn<Animal, String> noun = new TableColumn<>("Noun");
                TableColumn<Animal, String> snoun = new TableColumn<>("Sci.Noun");
                TableColumn<Animal, Double> minSize = new TableColumn<>("Min Size");
                TableColumn<Animal, Double> maxSize = new TableColumn<>("Max Size");
                TableColumn<Animal, Double> minWeight = new TableColumn<>("Min Weight");
                TableColumn<Animal, Double> maxWeight = new TableColumn<>("Max Weight");
                TableColumn<Animal, String[]> colors = new TableColumn<>("Colors");
                TableColumn<Animal, String[]> locomotion = new TableColumn<>("Locomotion");
                TableColumn<Animal, String[]> countries = new TableColumn<>("Countries");
                TableColumn<Animal, String[]> habitats = new TableColumn<>("Natural Habitats");

                type.setPrefWidth(100);
                noun.setPrefWidth(100);
                snoun.setPrefWidth(100);
                minSize.setPrefWidth(100);
                maxSize.setPrefWidth(100);
                minWeight.setPrefWidth(100);
                maxWeight.setPrefWidth(100);
                colors.setPrefWidth(100);
                locomotion.setPrefWidth(100);
                countries.setPrefWidth(100);
                habitats.setPrefWidth(100);

                type.setCellValueFactory(new PropertyValueFactory<>("type"));
                noun.setCellValueFactory(new PropertyValueFactory<>("noun"));
                snoun.setCellValueFactory(new PropertyValueFactory<>("scientificNoun"));
                minSize.setCellValueFactory(new PropertyValueFactory<>("minSize"));
                maxSize.setCellValueFactory(new PropertyValueFactory<>("maxSize"));
                minWeight.setCellValueFactory(new PropertyValueFactory<>("minWeight"));
                maxWeight.setCellValueFactory(new PropertyValueFactory<>("maxWeight"));
                colors.setCellValueFactory(new PropertyValueFactory<>("colors"));
                locomotion.setCellValueFactory(new PropertyValueFactory<>("locomotions"));
                countries.setCellValueFactory(new PropertyValueFactory<>("countriesFoundIn"));
                habitats.setCellValueFactory(new PropertyValueFactory<>("naturalHabitat"));


                TableColumn [] tableColumns = new TableColumn[11];

                tableColumns[0] = type;
                tableColumns[1] = noun;
                tableColumns[2] = snoun;
                tableColumns[3] = minSize;
                tableColumns[4] = maxSize;
                tableColumns[5] = minWeight;
                tableColumns[6] = maxWeight;
                tableColumns[7] = colors;
                tableColumns[8] = locomotion;
                tableColumns[9] = countries;
                tableColumns[10] = habitats;

                table.getColumns().addAll(tableColumns);
                obList.add(animalFound);
                table.setItems(obList);
            }
        }else{
            final Stage dialog = new Stage();
            dialog.setTitle("Search Results");
            dialog.initModality(Modality.APPLICATION_MODAL);
            Stage primaryStage = (Stage) search.getScene().getWindow();
            dialog.initOwner(primaryStage);
            VBox dialogVbox = new VBox(10);
            dialogVbox.setAlignment(Pos.CENTER);
            dialogVbox.getChildren().add(new Text("No such animal found"));
            Scene dialogScene = new Scene(dialogVbox, 300, 100);
            dialog.setScene(dialogScene);
            dialog.show();
        }
    }
}