Change Label text in Button click event : Label « JavaFX « Java

1. Java
2. JavaFX
3. Label

Change Label text in Button click event

 
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.stage.Stage;

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

  @Override
  public void start(Stage primaryStage) {

    Button btn = new Button();
    final Label lbl = new Label();

    primaryStage.setTitle("Hello World!");

    lbl.setLayoutX(70);
    lbl.setLayoutY(150);

    btn.setLayoutX(100);
    btn.setLayoutY(100);
    btn.setText("Hello, World!");

    btn.setOnAction(new EventHandler<ActionEvent>() {

      @Override
      public void handle(ActionEvent event) {
        lbl.setText("Hello, World.");
      }
    });

    Group root = new Group();

    root.getChildren().add(btn);
    root.getChildren().add(lbl);
    primaryStage.setScene(new Scene(root, 300, 250));
    primaryStage.show();
  }
}

   
  

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