java语言程序设计基础篇第十版第十四章练习答案

01import javafx.application.Application;import javafx.geometry.Pos;import javafx.scene.Scene;import yout.GridPane;import javafx.stage.Stage;import javafx.scene.image.ImageView;public class Exercise14_01 extends Application {@Override // Override the start method in the Application class public void start(Stage primaryStage) {GridPane pane = new GridPane();pane.setAlignment(Pos.CENTER);pane.setHgap(5);pane.setVgap(5);ImageView imageView1 = new ImageView("image/uk.gif");ImageView imageView2 = new ImageView("image/ca.gif");ImageView imageView3 = new ImageView("image/china.gif");ImageView imageView4 = new ImageView("image/us.gif");pane.add(imageView1, 0, 0);pane.add(imageView2, 1, 0);pane.add(imageView3, 0, 1);pane.add(imageView4, 1, 1);// Create a scene and place it in the stageScene scene = new Scene(pane);primaryStage.setTitle("Exercise14_01"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}02import javafx.application.Application;import javafx.geometry.Pos;import javafx.scene.Scene;import yout.GridPane;import javafx.stage.Stage;import javafx.scene.image.ImageView;import javafx.scene.image.Image;public class Exercise14_02 extends Application {@Override // Override the start method in the Application class public void start(Stage primaryStage) {Image imageX = new Image("image/x.gif");Image imageO = new Image("image/o.gif");GridPane pane = new GridPane();pane.setAlignment(Pos.CENTER);pane.setHgap(5);pane.setVgap(5);for (int i = 0; i < 3; i++) {for (int j = 0; j < 3; j++) {int status = (int)(Math.random() * 3);if (status == 0) {pane.add(new ImageView(imageX), j, i);}else if (status == 1) {pane.add(new ImageView(imageO), j, i);}}}// Create a scene and place it in the stageScene scene = new Scene(pane);primaryStage.setTitle("Exercise14_02"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}import java.util.ArrayList;import javafx.application.Application;import javafx.geometry.Pos;import javafx.scene.Scene;import yout.HBox;import javafx.stage.Stage;import javafx.scene.image.ImageView;public class Exercise14_03 extends Application {@Override // Override the start method in the Application classpublic void start(Stage primaryStage) {// There are two ways for shuffling. One is to use the hint in the book.// The other way is to use the static shuffle method in the java.util.Collections class.ArrayList<Integer> list = new ArrayList<>();for (int i = 1; i <= 52; i++) {list.add(i);}java.util.Collections.shuffle(list);HBox pane = new HBox(5);pane.setAlignment(Pos.CENTER);pane.getChildren().add(new ImageView("image/card/" + list.get(0) + ".png"));pane.getChildren().add(new ImageView("image/card/" + list.get(1) + ".png"));pane.getChildren().add(new ImageView("image/card/" + list.get(2) + ".png"));// Create a scene and place it in the stageScene scene = new Scene(pane);primaryStage.setTitle("Exercise14_03"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}import javafx.application.Application;import javafx.geometry.Pos;import javafx.scene.Scene;import yout.HBox;import javafx.scene.paint.Color;import javafx.scene.text.Font;import javafx.scene.text.FontPosture;import javafx.scene.text.FontWeight;import javafx.scene.text.Text;import javafx.stage.Stage;public class Exercise14_04 extends Application {@Override // Override the start method in the Application classpublic void start(Stage primaryStage) {HBox pane = new HBox();pane.setAlignment(Pos.CENTER);Font font = Font.font("Times New Roman", FontWeight.BOLD,FontPosture.ITALIC, 22);for (int i = 0; i < 5; i++) {Text txt = new Text("Java");txt.setRotate(90);txt.setFont(font);txt.setFill(new Color(Math.random(), Math.random(), Math.random(), Math.random()));pane.getChildren().add(txt);}// Create a scene and place it in the stageScene scene = new Scene(pane, 200, 100);primaryStage.setTitle("Exercise14_04"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}import javafx.application.Application;import javafx.scene.Scene;import yout.Pane;import javafx.scene.text.Font;import javafx.scene.text.FontPosture;import javafx.scene.text.FontWeight;import javafx.scene.text.Text;import javafx.stage.Stage;public class Exercise14_05 extends Application {@Override // Override the start method in the Application class public void start(Stage primaryStage) {Pane pane = new Pane();Font font = Font.font("Times New Roman", FontWeight.BOLD, FontPosture.REGULAR, 35);String s = "WELCOME TO JAVA ";double radius = 80;for (int i = 0; i < s.length(); i++) {double alpha = 2 * Math.PI * (s.length() - i) / s.length();Text txt = new Text(radius * Math.cos(alpha) + 120,120 - radius * Math.sin(alpha), s.charAt(i) + "");txt.setFont(font);txt.setRotate(360 * i / s.length() + 90);pane.getChildren().add(txt);}// Create a scene and place it in the stageScene scene = new Scene(pane, 240, 240);primaryStage.setTitle("Exercise14_05"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}import javafx.application.Application;import javafx.scene.Scene;import yout.Pane;import javafx.scene.text.Font;import javafx.scene.text.FontPosture;import javafx.scene.text.FontWeight;import javafx.scene.text.Text;import javafx.stage.Stage;public class Exercise14_05 extends Application {@Override // Override the start method in the Application class public void start(Stage primaryStage) {Pane pane = new Pane();Font font = Font.font("Times New Roman", FontWeight.BOLD, FontPosture.REGULAR, 35);String s = "WELCOME TO JAVA ";double radius = 80;for (int i = 0; i < s.length(); i++) {double alpha = 2 * Math.PI * (s.length() - i) / s.length();Text txt = new Text(radius * Math.cos(alpha) + 120,120 - radius * Math.sin(alpha), s.charAt(i) + "");txt.setFont(font);txt.setRotate(360 * i / s.length() + 90);pane.getChildren().add(txt);}// Create a scene and place it in the stageScene scene = new Scene(pane, 240, 240);primaryStage.setTitle("Exercise14_05"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}06import javafx.application.Application;import javafx.scene.Scene;import yout.Pane;import javafx.scene.paint.Color;import javafx.stage.Stage;import javafx.scene.shape.Rectangle;public class Exercise14_06 extends Application {@Override // Override the start method in the Application class public void start(Stage primaryStage) {double WIDTH = 200;double HEIGHT = 200;Pane pane = new Pane();for (int i = 0; i < 8; i++) {boolean isWhite = i % 2 == 0;for (int j = 0; j < 8; j++) {Rectangle rectangle = new Rectangle(i * WIDTH / 8,j * HEIGHT / 8, WIDTH / 8, HEIGHT / 8);rectangle.setStroke(Color.BLACK);if (isWhite) {rectangle.setFill(Color.WHITE);}else {rectangle.setFill(Color.BLACK);}isWhite = !isWhite;pane.getChildren().add(rectangle);}}// Create a scene and place it in the stageScene scene = new Scene(pane, WIDTH, HEIGHT);primaryStage.setTitle("Exercise14_06"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}07import javafx.application.Application;import javafx.geometry.Pos;import javafx.scene.Scene;import javafx.scene.control.TextField;import yout.GridPane;import javafx.stage.Stage;public class Exercise14_07 extends Application {@Override // Override the start method in the Application class public void start(Stage primaryStage) {double WIDTH = 200;double HEIGHT = 200;GridPane pane = new GridPane();for (int i = 0; i < 10; i++) {for (int j = 0; j < 10; j++) {TextField tf = new TextField((int)(Math.random() + 0.5) + "");tf.setPrefColumnCount(1);tf.setAlignment(Pos.CENTER);pane.add(tf, j, i);}}// Create a scene and place it in the stageScene scene = new Scene(pane, WIDTH, HEIGHT);primaryStage.setTitle("Exercise14_07"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}08import javafx.application.Application;import javafx.scene.Scene;import javafx.scene.image.ImageView;import yout.GridPane;import javafx.stage.Stage;public class Exercise14_08 extends Application {@Override // Override the start method in the Application classpublic void start(Stage primaryStage) {GridPane pane = new GridPane();for (int i = 0; i < 6; i++) {for (int j = 0; j < 9; j++) {pane.add(new ImageView("image/card/" + (i * 6 + j + 1) + ".png"), j, i);}}// Create a scene and place it in the stageScene scene = new Scene(pane, 600, 600);primaryStage.setTitle("Exercise14_08"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}import javafx.application.Application;import javafx.scene.Scene;import yout.GridPane;import yout.Pane;import javafx.scene.paint.Color;import javafx.scene.shape.Arc;import javafx.scene.shape.ArcType;import javafx.scene.shape.Circle;import javafx.stage.Stage;public class Exercise14_09 extends Application {@Override // Override the start method in the Application class public void start(Stage primaryStage) {GridPane pane = new GridPane();pane.add(new FanPane(), 0, 0);pane.add(new FanPane(), 1, 0);pane.add(new FanPane(), 0, 1);pane.add(new FanPane(), 1, 1);// Create a scene and place it in the stageScene scene = new Scene(pane, 200, 200);primaryStage.setTitle("Exercise14_09"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}class FanPane extends Pane {double radius = 50;public FanPane() {Circle circle = new Circle(60, 60, radius);circle.setStroke(Color.BLACK);circle.setFill(Color.WHITE);getChildren().add(circle);Arc arc1 = new Arc(60, 60, 40, 40, 30, 35);arc1.setFill(Color.RED); // Set fill colorarc1.setType(ArcType.ROUND);Arc arc2 = new Arc(60, 60, 40, 40, 30 + 90, 35);arc2.setFill(Color.RED); // Set fill colorarc2.setType(ArcType.ROUND);Arc arc3 = new Arc(60, 60, 40, 40, 30 + 180, 35);arc3.setFill(Color.RED); // Set fill colorarc3.setType(ArcType.ROUND);Arc arc4 = new Arc(60, 60, 40, 40, 30 + 270, 35);arc4.setFill(Color.RED); // Set fill colorarc4.setType(ArcType.ROUND);getChildren().addAll(arc1, arc2, arc3, arc4);}}10import javafx.application.Application;import javafx.scene.Scene;import yout.Pane;import javafx.scene.paint.Color;import javafx.scene.shape.Arc;import javafx.scene.shape.Ellipse;import javafx.scene.shape.Line;import javafx.stage.Stage;public class Exercise14_10 extends Application {@Override // Override the start method in the Application class public void start(Stage primaryStage) {Pane pane = new Pane();Ellipse ellipse = new Ellipse(100, 40, 50, 20);ellipse.setFill(Color.WHITE);ellipse.setStroke(Color.BLACK);Arc arc1 = new Arc(100, 140, 50, 20, 0, 180);arc1.setFill(Color.WHITE);arc1.setStroke(Color.BLACK);arc1.getStrokeDashArray().addAll(6.0, 21.0);Arc arc2 = new Arc(100, 140, 50, 20, 180, 180);arc2.setFill(Color.WHITE);arc2.setStroke(Color.BLACK);pane.getChildren().addAll(ellipse, arc1, arc2,new Line(50, 40, 50, 140), new Line(150, 40, 150, 140));// Create a scene and place it in the stageScene scene = new Scene(pane, 200, 200);primaryStage.setTitle("Exercise14_10"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}11import javafx.application.Application;import javafx.scene.Scene;import yout.Pane;import javafx.scene.paint.Color;import javafx.scene.shape.Arc;import javafx.scene.shape.Circle;import javafx.scene.shape.Ellipse;import javafx.scene.shape.Line;import javafx.stage.Stage;public class Exercise14_11 extends Application {@Override // Override the start method in the Application class public void start(Stage primaryStage) {Pane pane = new Pane();Circle circle = new Circle(100, 100, 80);circle.setFill(Color.WHITE);circle.setStroke(Color.BLACK);Circle circle1 = new Circle(70, 70, 10);Circle circle2 = new Circle(130, 70, 10);Ellipse ellipse1 = new Ellipse(70, 70, 20, 15);ellipse1.setFill(Color.WHITE);ellipse1.setStroke(Color.BLACK);Ellipse ellipse2 = new Ellipse(130, 70, 20, 15);ellipse2.setFill(Color.WHITE);ellipse2.setStroke(Color.BLACK);Line line1 = new Line(100, 80, 80, 120);Line line2 = new Line(80, 120, 120, 120);Line line3 = new Line(120, 120, 100, 80);Arc arc = new Arc(100, 130, 40, 15, 180, 180);arc.setFill(Color.WHITE);arc.setStroke(Color.BLACK);pane.getChildren().addAll(circle, ellipse1, ellipse2,circle1, circle2, line1, line2, line3, arc);// Create a scene and place it in the stageScene scene = new Scene(pane, 200, 200);primaryStage.setTitle("Exercise14_11"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}12import javafx.application.Application;import javafx.scene.Scene;import yout.Pane;import javafx.scene.paint.Color;import javafx.scene.shape.Rectangle;import javafx.scene.text.Text;import javafx.stage.Stage;public class Exercise14_12 extends Application {@Override // Override the start method in the Application classpublic void start(Stage primaryStage) {Pane pane = new Pane();double height = 300;double paneHeight = 150;Rectangle r1 = new Rectangle(10, paneHeight - height * 0.2, 100, height * 0.2);r1.setFill(Color.RED);Text text1 = new Text(10, paneHeight - height * 0.2 - 10, "Project -- 20%");Rectangle r2 = new Rectangle(10 + 110, paneHeight - height * 0.1, 100, height * 0.1);r2.setFill(Color.BLUE);Text text2 = new Text(10 + 110, paneHeight - height * 0.1 - 10, "Quiz -- 10%");Rectangle r3 = new Rectangle(10 + 220, paneHeight - height * 0.3, 100, height * 0.3);r3.setFill(Color.GREEN);Text text3 = new Text(10 + 220, paneHeight - height * 0.3 - 10, "Midterm -- 30%");Rectangle r4 = new Rectangle(10 + 330, paneHeight - height * 0.4, 100, height * 0.4);r4.setFill(Color.ORANGE);Text text4 = new Text(10 + 330, paneHeight - height * 0.4 - 10, "Final -- 40%");pane.getChildren().addAll(r1, text1, r2, text2, r3, text3, r4, text4);// Create a scene and place it in the stageScene scene = new Scene(pane, 500, paneHeight);primaryStage.setTitle("Exercise14_12"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}13import javafx.application.Application;import javafx.scene.Scene;import yout.Pane;import javafx.scene.paint.Color;import javafx.scene.shape.Arc;import javafx.scene.shape.ArcType;import javafx.scene.text.Text;import javafx.stage.Stage;public class Exercise14_13 extends Application {@Override // Override the start method in the Application classpublic void start(Stage primaryStage) {Pane pane = new Pane();Arc arc1 = new Arc(100, 100, 80, 80, 0, 360 * 0.2);arc1.setFill(Color.RED);arc1.setType(ArcType.ROUND);Text text1 = new Text(110, 80, "Project -- 20%");Arc arc2 = new Arc(100, 100, 80, 80, 360 * 0.2, 360 * 0.1);arc2.setFill(Color.BLUE);arc2.setType(ArcType.ROUND);Text text2 = new Text(80, 15, "Quiz -- 10%");Arc arc3 = new Arc(100, 100, 80, 80, 360 * 0.2 + 360 * 0.1, 360 * 0.3);arc3.setFill(Color.GREEN);arc3.setType(ArcType.ROUND);Text text3 = new Text(5, 100, "Midterm -- 30%");Arc arc4 = new Arc(100, 100, 80, 80, 360 * 0.2 + 360 * 0.1 + 360 * 0.3, 360 * 0.4);arc4.setFill(Color.ORANGE);arc4.setType(ArcType.ROUND);Text text4 = new Text(100, 180, "Final -- 40%");pane.getChildren().addAll(arc1, text1, arc2, text2, arc3, text3, arc4, text4);// Create a scene and place it in the stageScene scene = new Scene(pane, 200, 200);primaryStage.setTitle("Exercise14_13"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}14import javafx.application.Application;import javafx.scene.Scene;import yout.Pane;import javafx.scene.paint.Color;import javafx.scene.shape.Line;import javafx.scene.shape.Rectangle;import javafx.stage.Stage;public class Exercise14_14 extends Application {@Override // Override the start method in the Application classpublic void start(Stage primaryStage) {Pane pane = new Pane();double paneWidth = 200;double paneHeight = 200;double width = paneWidth * 0.90 - 30;double height = paneWidth * 0.90 - 60;double diff = Math.min(width, height) * 0.4;// Draw the front rectangleRectangle r1 = new Rectangle(10, 60, width, height);r1.setFill(new Color(1, 1, 1, 0));r1.setStroke(Color.BLACK);// Draw the back rectangleRectangle r2 = new Rectangle(30, 60 - diff, width, height);r2.setFill(new Color(1, 1, 1, 0));r2.setStroke(Color.BLACK);// Connect the cornersLine line1 = new Line(10, 60, 30, 60 - diff);Line line2 = new Line(10, 60 + height, 30, 60 - diff + height);Line line3 = new Line(10 + width, 60, 30 + width, 60 - diff);Line line4 = new Line(10 + width, 60 + height, 30 + width, 60 - diff + height);pane.getChildren().addAll(r1, r2, line1, line2, line3, line4);// Create a scene and place it in the stageScene scene = new Scene(pane, paneWidth, paneHeight);primaryStage.setTitle("Exercise14_14"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}15import javafx.application.Application;import javafx.collections.ObservableList;import javafx.scene.Scene;import yout.StackPane;import javafx.scene.paint.Color;import javafx.stage.Stage;import javafx.scene.shape.Polygon;import javafx.scene.text.Font;import javafx.scene.text.Text;public class Exercise14_15 extends Application {@Override // Override the start method in the Application classpublic void start(Stage primaryStage) {// Create a pane, a polygon, and place polygon to paneStackPane pane = new StackPane();Polygon polygon = new Polygon();polygon.setFill(Color.RED);ObservableList<Double> list = polygon.getPoints();final double WIDTH = 200, HEIGHT = 200;double centerX = WIDTH / 2, centerY = HEIGHT / 2;double radius = Math.min(WIDTH, HEIGHT) * 0.4;// Add points to the polygon listfor (int i = 0; i < 8; i++) {list.add(centerX + radius * Math.cos(2 * i * Math.PI / 8 - Math.PI / 8));list.add(centerY - radius * Math.sin(2 * i * Math.PI / 8 - Math.PI / 8));}Text text = new Text("STOP");text.setFill(Color.WHITE);text.setFont(Font.font("Times New Roman", 40));pane.getChildren().addAll(polygon, text);// Create a scene and place it in the stageScene scene = new Scene(pane, WIDTH, HEIGHT);primaryStage.setTitle("Exercise14_15"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}16import javafx.application.Application;import javafx.scene.Scene;import yout.Pane;import javafx.scene.paint.Color;import javafx.scene.shape.Line;import javafx.stage.Stage;public class Exercise14_16 extends Application {@Override // Override the start method in the Application class public void start(Stage primaryStage) {Pane pane = new Pane();Line line1 = new Line(0, 0, 0, 0);line1.startYProperty().bind(pane.heightProperty().divide(3));line1.endXProperty().bind(pane.widthProperty());line1.endYProperty().bind(pane.heightProperty().divide(3));line1.setStroke(Color.BLUE);Line line2 = new Line(0, 0, 0, 0);line2.startYProperty().bind(pane.heightProperty().multiply(2).divide(3));line2.endXProperty().bind(pane.widthProperty());line2.endYProperty().bind(pane.heightProperty().multiply(2).divide(3));line2.setStroke(Color.BLUE);Line line3 = new Line(0, 0, 0, 0);line3.startXProperty().bind(pane.widthProperty().divide(3));line3.endXProperty().bind(pane.widthProperty().divide(3));line3.endYProperty().bind(pane.heightProperty());line3.setStroke(Color.RED);Line line4 = new Line(0, 0, 0, 0);line4.startXProperty().bind(pane.widthProperty().multiply(2).divide(3));line4.endXProperty().bind(pane.widthProperty().multiply(2).divide(3));line4.endYProperty().bind(pane.heightProperty());line4.setStroke(Color.RED);pane.getChildren().addAll(line1, line2, line3, line4);// Create a scene and place it in the stageScene scene = new Scene(pane, 200, 200);primaryStage.setTitle("Exercise14_16"); // Set the stage titleprimaryStage.setScene(scene); // Place the scene in the stageprimaryStage.show(); // Display the stage}/*** The main method is only needed for the IDE with limited* JavaFX support. Not needed for running from the command line.*/public static void main(String[] args) {launch(args);}}17import javafx.application.Application;import javafx.scene.Scene;import yout.Pane;import javafx.scene.paint.Color;import javafx.scene.shape.Arc;import javafx.scene.shape.Line;import javafx.scene.shape.Circle;import javafx.stage.Stage;public class Exercise14_17 extends Application {@Override // Override the start method in the Application classpublic void start(Stage primaryStage) {Pane pane = new Pane();Arc arc = new Arc(60, 240, 40, 20, 0, 180); // Draw the basearc.setFill(Color.WHITE);arc.setStroke(Color.BLACK);Line line1 = new Line(20 + 40, 220, 20 + 40, 20); // Draw the poleLine line2 = new Line(20 + 40, 20, 20 + 40 + 100, 20); // Draw the hangerLine line3 = new Line(20 + 40 + 100, 20, 20 + 40 + 100, 40); // Draw the hanger// Draw the circleint radius = 20;Circle circle = new Circle(20 + 40 + 100, 40 + radius, radius); // Draw the hangercircle.setFill(Color.WHITE);circle.setStroke(Color.BLACK);// Draw the left armLine line4 = new Line(20 + 40 + 100 - radius * Math.cos(Math.toRadians(45)),40 + radius + radius * Math.sin(Math.toRadians(45)),20 + 40 + 100 - 60, 40 + radius + 60);// Draw the right armLine line5 = new Line(20 + 40 + 100 + radius * Math.cos(Math.toRadians(45)),40 + radius + radius * Math.sin(Math.toRadians(45)),20 + 40 + 100 + 60, 40 + radius + 60);// Draw the bodyLine line6 = new Line(20 + 40 + 100, 40 + 2 * radius,20 + 40 + 100, 40 + radius + 80);// Draw the left legLine line7 = new Line(20 + 40 + 100, 40 + radius + 80, 20 + 40 + 100 - 40, 40 + radius + 80 + 40);// Draw the right legLine line8 = new Line(20 + 40 + 100, 40 + radius + 80, 20 + 40 + 100 + 40, 40 + radius + 80 + 40);pane.getChildren().addAll(arc, line1, line2, line3, circle, line4, line5, line6, line7, line8);。