JavaFX 形状没有显示？

Question

我需要使用文本文件中的说明创建图像。我快完成了，但是我的两个形状没有出现。 https://imgur.com/a/KptnvOD 上图是我有的，下图是我需要的。如您所见，右上角的一个圆圈没有显示，构建火箭底部的矩形也没有显示。这是相关代码：

Group root = new Group();  //creates group for all shapes to go in
        try {
            Scanner obj = new Scanner(new File("scene.txt"));  //reads text file
            boolean shouldBreak = false;
            while(obj.hasNextLine()){
                String[] strArray = obj.nextLine().split(" ");  //splits all commands to new line

                switch(strArray[0]){
                    case "SIZE":                                      //sets size of window
                        fwidth = Double.parseDouble(strArray[1]);
                        fheight = Double.parseDouble(strArray[2]);
                        break;

                        case "LINE":                                      //creates each line
                        la = Double.parseDouble(strArray[1]);
                        lb = Double.parseDouble(strArray[2]);
                        lc = Double.parseDouble(strArray[3]);
                        ld = Double.parseDouble(strArray[4]);
                        Line line = new Line(la,lb,lc,ld);
                        line.setStyle("-fx-stroke:rgb(127,244,16)");
                        root.getChildren().add(line);
                        break;

                        case "CIRCLE":                                    //creates each circle
                        cx = Double.parseDouble(strArray[1]);
                        cy = Double.parseDouble(strArray[2]);
                        cr = Double.parseDouble(strArray[3]);
                        Circle circle = new Circle(cx,cy,cr);
                        circle.setFill(null);
                        circle.setStyle("-fx-stroke:rgb(127,244,16)");
                        root.getChildren().add(circle);
                        break;

                        case "RECTANGLE":                                 //creates each rectangle
                        rx = Double.parseDouble(strArray[1]);
                        ry = Double.parseDouble(strArray[2]);
                        rw = Double.parseDouble(strArray[3]);
                        rh = Double.parseDouble(strArray[4]);
                        Rectangle rect = new Rectangle(rx,ry,rw,rh);
                        rect.setFill(null);
                        rect.setStyle("-fx-stroke:rgb(127,244,16)");
                        root.getChildren().add(rect);
                        break;

                        case "TEXT":                                      //creates each string of text
                        tx = Double.parseDouble(strArray[1]);
                        ty = Double.parseDouble(strArray[2]);
                        for(int i = 3; i < strArray.length; i++){
                            ts = ts + " " + strArray[i];
                        }
                        Text text = new Text(tx,ty,ts);
                        text.setStyle("-fx-stroke:rgb(127,244,16)");
                        root.getChildren().add(text);
                        ts = "";
                        break;

                        case "//":                                        //ignores comments
                        obj.nextLine();
                        break;

                        case "END":                                       //stops reading file
                        shouldBreak = true;
                        break;
                }
                if(shouldBreak){break;}
            }

            Scene scene = new Scene(root, fwidth, fheight, Color.BLACK);
            stage.setTitle("graphic");
            stage.setScene(scene);
            stage.show();
        }
        catch (FileNotFoundException fileNotFoundException) {
            fileNotFoundException.printStackTrace();
        }
        }

        /**
         * The main method
         * @param args
         */

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

我在网上看过，找不到任何相关信息。如果有人知道为什么只有 2 个形状没有出现，我们将不胜感激。

Answer 1

                    case "//":            //ignores comments
                    obj.nextLine();
                    break;

你让它在这里跳过了一个额外的指令行。我假设这是让你跳过某些形状的原因。下面是它应该是什么。

                    case "//":            //ignores comments
                    break;

JavaFX 形状没有显示？

JavaFX shapes not showing up?

java

javafx

java.util.scanner