Main.java Source code

Introduction

Here is the source code for Main.java

Source

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import javafx.util.Callback;

public class Main extends Application {
    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) {
        stage.setTitle("ComboBoxSample");
        Scene scene = new Scene(new Group(), 450, 250);

        ComboBox emailComboBox = new ComboBox();
        emailComboBox.getItems().addAll("A", "B", "C", "D", "E");
        emailComboBox.setCellFactory(new Callback<ListView<String>, ListCell<String>>() {
            @Override
            public ListCell<String> call(ListView<String> param) {
                final ListCell<String> cell = new ListCell<String>() {
                    {
                        super.setPrefWidth(100);
                    }

                    @Override
                    public void updateItem(String item, boolean empty) {
                        super.updateItem(item, empty);
                        if (item != null) {
                            setText(item);
                            if (item.contains("A")) {
                                setTextFill(Color.RED);
                            } else if (item.contains("B")) {
                                setTextFill(Color.GREEN);
                            } else {
                                setTextFill(Color.BLACK);
                            }
                        } else {
                            setText(null);
                        }
                    }
                };
                return cell;
            }

        });

        GridPane grid = new GridPane();
        grid.setVgap(4);
        grid.setHgap(10);
        grid.setPadding(new Insets(5, 5, 5, 5));
        grid.add(new Label("To: "), 0, 0);
        grid.add(emailComboBox, 1, 0);

        Group root = (Group) scene.getRoot();
        root.getChildren().add(grid);
        stage.setScene(scene);
        stage.show();

    }
}