Ich habe nur versucht zu verstehen, warum sich die Fenstergröße (die ich auf Vollbild eingestellt habe) ändert, wenn ich Szenen ändere. Gibt es eine Möglichkeit (dh einen Befehl), der einmal ausgegeben werden kann, um Java FX nicht zu informieren Größe ändern?

import javafx.application.Application;
import javafx.geometry.Pos;

import javafx.scene.Scene;

import javafx.scene.control.Button;
import javafx.scene.control.ContentDisplay;

import javafx.scene.image.Image;

import javafx.scene.image.ImageView;
import javafx.scene.layout.BorderPane;

import javafx.scene.layout.HBox;

import javafx.scene.layout.StackPane;

import javafx.stage.Stage;

public class Main extends Application {

    Scene scene,scene_2;

    public static void main(String[] args) {

        launch(args);

    }

    @Override

    public void start(Stage Win_primary) throws Exception {

        Win_primary.setTitle("AN-0");



        Button start,exit_pro,back_to_start;

        start= new Button();

        start.setText("Start");

        Image exit_door = new Image("file:C:\\Users\\MyPc\\Pictures\\FX\\vector-icons_05-128 (2).png");



        exit_pro= new Button ();
        exit_pro.setGraphic(new ImageView(exit_door));





          start.setStyle(

                "-fx-background-radius: 100em; " +

                "-fx-min-width: 200px; " +

                "-fx-min-height: 200px; " +

                "-fx-max-width: 200px; " +

                "-fx-max-height: 170px;" +

                "-fx-font-size: 20px"

        );


           exit_pro.setMaxSize(50, 50);
           exit_pro.setOnAction(e -> Win_primary.close());

        StackPane layout = new StackPane();
        layout.setStyle("-fx-background-color: #FFFFFF ;");
        layout.getChildren().add(start);
        layout.setAlignment(exit_pro, Pos.BOTTOM_CENTER);
         layout.getChildren().add(exit_pro);


        start.setOnAction(e -> {
             Win_primary.setScene(scene_2);

            });
        scene = new Scene(layout, 300, 250);


        //scene 2

        StackPane layout2 = new StackPane();
        back_to_start = new Button("Cancel");
        layout2.setStyle("-fx-background-color: #FFFFFF ;");
        layout2.getChildren().add(back_to_start);
        layout.setAlignment(back_to_start, Pos.BOTTOM_CENTER);
        scene_2 = new Scene (layout2,300,250);   
        back_to_start.setOnAction(e -> Win_primary.setScene(scene));


        Win_primary.setScene(scene);
        Win_primary.setMinHeight(700);
        Win_primary.setMinWidth(700);
        Win_primary.setMaximized(true);

        Win_primary.setFullScreen(true);

        Win_primary.show();

    }

}