Introduction to Java Programming and Data Structures, Comprehensive Version, Student Value Edition (11th Edition)
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Question
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Chapter 15, Problem 15.1PE
Program Plan Intro

Pick Four cards

Program Plan:

  • Import the required packages.
  • Create a class Myclass
    • Declare the necessary variables
    • Using start initialize the required
      • Create a new array list
      • Loop that iterates to all the 52 values into the list.
      • Create and initialize a random shuffle method.
      • Create “hbox” and add cards randomly.
      • Align the position of the cards.
      • Create a new button.
      • Add an action even to the button.
      • Shuffle randomly to place four cards.
      • Initialize the new pane.
      • Add the created items into the pane.
      • Create a scene based on the defined positions
      • Set title for the preview
      • Display the cards after refresh button is pressed.
    • Define the main method.
      • Initialize the call.

Expert Solution & Answer
Check Mark
Program Description Answer

The below program is used to pick four cards randomly by pressing refresh button:

Explanation of Solution

Program:

//import the required headers

import javafx.application.Application;

import javafx.geometry.Pos;

import javafx.scene.Scene;

import javafx.scene.control.Button;

import javafx.scene.image.ImageView;

import javafx.scene.layout.BorderPane;

import javafx.scene.layout.HBox;

import javafx.stage.Stage;

import java.util.ArrayList;

//define the class Myclass

public class Myclass extends Application

{

@Override

//start method gets overidden in the application class

public void start(Stage primeview) {

// create a new list

ArrayList<Integer> mylist = new ArrayList<>();

// iterate for all cards

for (int iter = 1; iter <= 52; iter++)

{

// add the values to the list

mylist.add(iter);

}

// shuffle method call

java.util.Collections.shuffle(mylist);

// new Hbox declaration

HBox my_hBox = new HBox(5);

// set the alignment to be center

my_hBox.setAlignment(Pos.CENTER);

// add card 1 to the hbox

my_hBox.getChildren().add(new ImageView("exer1/image/card/" + mylist.get(0) + ".png"));

// add card 2 to the hbox

my_hBox.getChildren().add(new ImageView("exer1/image/card/" + mylist.get(1) + ".png"));

// add card 3 to the hbox

my_hBox.getChildren().add(new ImageView("exer1/image/card/" + mylist.get(2) + ".png"));

// add card 4 to the hbox

my_hBox.getChildren().add(new ImageView("exer1/image/card/" + mylist.get(3) + ".png"));

// new button gets created

Button btRefresh = new Button("Refresh");

// action event for the button gets created

btRefresh.setOnAction(e -> {

// shuffling the card

java.util.Collections.shuffle(mylist);

// clear the contents of the hbox

my_hBox.getChildren().clear();

// add card 1 to the hbox

my_hBox.getChildren().add(new ImageView("exer1/image/card/" + mylist.get(0) + ".png"));

// add card 2 to the hbox

my_hBox.getChildren().add(new ImageView("exer1/image/card/" + mylist.get(1) + ".png"));

// add card 3 to the hbox

my_hBox.getChildren().add(new ImageView("exer1/image/card/" + mylist.get(2) + ".png"));

// add card 4 to the hbox

my_hBox.getChildren().add(new ImageView("exer1/image/card/" + mylist.get(3) + ".png"));

});

// new border pane is created

BorderPane new_pane = new BorderPane();

// align the position

new_pane.setCenter(my_hBox);

// align the button position

new_pane.setBottom(btRefresh);

// add the contents to the pane

BorderPane.setAlignment(btRefresh, Pos.TOP_CENTER);

// new scene gets created

Scene n_scene = new Scene(new_pane, 250, 150);

// title of the stage is set

primeview.setTitle("Pick four cards");

// the stage gets placed in the scene

primeview.setScene(n_scene);

// stage gets displayed

primeview.show();

}

// main method

public static void main(String[] args)

{

// initilaize calls

launch(args);

}

}

Sample Output

The below output will be displayed initially:

Screenshot of initial stage

Introduction to Java Programming and Data Structures, Comprehensive Version, Student Value Edition (11th Edition), Chapter 15, Problem 15.1PE , additional homework tip  1

When the refresh button is clicked the cards gets shuffled and it will be displayed as shown below:

Screenshot after rotation

Introduction to Java Programming and Data Structures, Comprehensive Version, Student Value Edition (11th Edition), Chapter 15, Problem 15.1PE , additional homework tip  2

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Chapter 15 Solutions

Introduction to Java Programming and Data Structures, Comprehensive Version, Student Value Edition (11th Edition)

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