package uni.projects.javafxcrud;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception {
        Parent root = FXMLLoader.load(getClass().getClassLoader().getResource("order.fxml"));
        primaryStage.setTitle("Hello World");
        primaryStage.setScene(new Scene(root, 800, 600));
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}

@@ -425,19 +425,13 @@
 le(%22
-Hello World
+%D0%97%D0%B0%D0%BA%D0%B0%D0%B7
 %22);%0A
@@ -484,24 +484,66 @@
 800, 600));%0A
+        primaryStage.setResizable(false);%0A
         prim

Change window title. Forbid resizing.