Display Rectangles in a ComboBox : ComboBox « JavaFX « Java

Display Rectangles in a ComboBox


import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.layout.GridPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

public class Main extends Application {
    public static void main(String[] args) {
    public void start(final Stage primaryStage) {
        Group root = new Group();
        Scene scene = new Scene(root, 400, 300, Color.WHITE);

        GridPane gridpane = new GridPane();

        ComboBox<Rectangle> cmb = new ComboBox<Rectangle>();
            new Rectangle(10, 10, Color.RED), 
            new Rectangle(10, 10, Color.GREEN), 
            new Rectangle(10, 10, Color.BLUE));
        gridpane.add(cmb, 2, 0);




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