JavaFX How to - Create a popup containing error

Question

We would like to know how to create a popup containing error.

Answer

//ww  w.  j av  a 2 s . c o m
import javafx.application.Platform;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;


public class Main{
  /**
   * Creates a popup containing error without any pretty things for a graphical way to show errors
   * @param error Error string to show
   */
  public static void showError(String error) {
      if (Platform.isFxApplicationThread()) {
          Stage s = new Stage();
          VBox v = new VBox();
          v.getChildren().add(new Label("Error [" + error + ']'));
          Scene sc = new Scene(v);
          s.setTitle("Fail");
          s.setScene(sc);
          s.show();
      } else {
          Platform.runLater(() -> {
              Stage s = new Stage();
              VBox v = new VBox();
              v.getChildren().add(new Label("Error [" + error + ']'));
              Scene sc = new Scene(v);
              s.setTitle("Fail");
              s.setScene(sc);
              s.show();
          });
      }
  }
}