Java tutorial
import javafx.application.Application; import javafx.application.Platform; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.Label; import javafx.scene.control.TextField; import javafx.scene.layout.VBox; import javafx.stage.Stage; public class Main extends Application { public static void main(String[] args) { Application.launch(args); } @Override public void start(Stage stage) { Label nameLbl = new Label("Enter your name:"); TextField nameFld = new TextField(); Label msg = new Label(); msg.setStyle("-fx-text-fill: blue;"); Button sayHelloBtn = new Button("Say Hello"); Button exitBtn = new Button("Exit"); sayHelloBtn.setOnAction(e -> { String name = nameFld.getText(); if (name.trim().length() > 0) { msg.setText("Hello " + name); } else { msg.setText("Hello there"); } }); exitBtn.setOnAction(e -> Platform.exit()); VBox root = new VBox(); root.setSpacing(5); root.getChildren().addAll(nameLbl, nameFld, msg, sayHelloBtn, exitBtn); Scene scene = new Scene(root, 350, 150); stage.setScene(scene); stage.show(); } }