24. TableView

There are two files. ColorVal.java contains the structure to be displayed: one String and 3 integers. It also has the getters and setters needed by JavaFX.

package ex24;

public class ColorVal {
    private String color;
    private int r;
    private int g;
    private int b;

    public ColorVal(String color, int r, int g, int b){
        this.color = color;
        this.r = r;
        this.g = g;
        this.b = b;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public int getR() {
        return r;
    }

    public void setR(int r) {
        this.r = r;
    }

    public int getG() {
        return g;
    }

    public void setG(int g) {
        this.g = g;
    }

    public int getB() {
        return b;
    }

    public void setB(int b) {
        this.b = b;
    }
}

We create the 4 columns and add it to the table object. Finally, we call setItems method with the ObservableList returned from getColor.

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package ex24;

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.stage.Stage;

public class Ex24 extends Application {
    
    TableView table;
    
    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("Example 24. TableView");
        
        Group root = new Group();
        Scene scene = new Scene(root, 500, 500);

        TableColumn colorCol = new TableColumn<>("Color");
        colorCol.setMinWidth(200);
        colorCol.setCellValueFactory(new PropertyValueFactory<>("color"));

        TableColumn rCol = new TableColumn<>("R");
        rCol.setMinWidth(100);
        rCol.setCellValueFactory(new PropertyValueFactory<>("r"));
        
        TableColumn gCol = new TableColumn<>("G");
        gCol.setMinWidth(100);
        gCol.setCellValueFactory(new PropertyValueFactory<>("g"));
        
        TableColumn bCol = new TableColumn<>("B");
        bCol.setMinWidth(100);
        bCol.setCellValueFactory(new PropertyValueFactory<>("b"));

        table = new TableView<>();
        table.setItems(getColor());
        table.getColumns().addAll(colorCol, rCol, gCol, bCol);

        root.getChildren().addAll(table);

        primaryStage.setScene(scene);
        primaryStage.show();
    }
    
    public ObservableList getColor(){
        ObservableList colors = FXCollections.observableArrayList();
        colors.add(new ColorVal("Black",0,0,0));
        colors.add(new ColorVal("White",255,255,255));
        colors.add(new ColorVal("Red",255,0,0));
        colors.add(new ColorVal("Lime",0,255,0));
        colors.add(new ColorVal("Blue",0,0,255));
        colors.add(new ColorVal("Yellow",255,255,0));
        colors.add(new ColorVal("Cyan",0,255,255));
        colors.add(new ColorVal("Magenta",255,0,255));
        return colors;
    }

    public static void main(String[] args) {
        launch(args);
    }
}

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This is the output:

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