Starting Out with C++ from Control Structures to Objects, Student Value Edition (9th Edition)
9th Edition
ISBN: 9780134443829
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 49RQE
If the items on the following list appeared in a problem domain description, which would be potential classes?
| Animal | Medication | Nurse |
| Inoculate | Operate | Advertise |
| Doctor | Invoice | Measure |
| Patient | Client | Customer |
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Add a timer in the following code.
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private Timer timer; private long elapsedTime;
public GameGUI(Labyrinth labyrinth, Player player, Dragon dragon) { this.labyrinth = labyrinth; this.player = player; this.dragon = dragon; String playerName = JOptionPane.showInputDialog("Enter your name:"); player.setName(playerName); elapsedTime = 0; timer = new Timer(1000, e -> { elapsedTime++; repaint(); }); timer.start();
}
@Override protected void paintComponent(Graphics g) { super.paintComponent(g); int cellSize = Math.min(getWidth() / labyrinth.getSize(), getHeight() / labyrinth.getSize());}
Change the following code so that when player wins the game, the game continues by creating new GameGUI with the same player. However the player's starting position is same, everything else should be reseted.
public static void main(String[] args) { Labyrinth labyrinth = new Labyrinth(10); Player player = new Player(9, 0); Random rand = new Random(); Dragon dragon = new Dragon(rand.nextInt(10), 9); JFrame frame = new JFrame("Labyrinth Game"); GameGUI gui = new GameGUI(labyrinth, player, dragon);
frame.setLayout(new BorderLayout()); frame.setSize(600, 600); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(gui, BorderLayout.CENTER); frame.pack(); frame.setResizable(false); frame.setVisible(true); }
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private Timer timer; private long…
Create a menu item which restarts the game. Also add a timer, which counts the elapsed time since the start of the game level.
When the restart is pressed, the restarted game should ask the player' name (in the GameGUI constructor) and set the score of player to 0 (player.setScore(0)), and the timer should restart again. And create a logic so that if the player loses his life (checkGame if the condition is false), then save this number together with his name into two variables. And display two buttons where one quits the game altogether (System.exit(0)) and the other restarts the game.
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon;
private final ImageIcon playerIcon = new ImageIcon("data/images/player.png"); private final ImageIcon dragonIcon = new ImageIcon("data/images/dragon.png"); private final ImageIcon wallIcon = new ImageIcon("data/images/wall.png"); private final ImageIcon…
Chapter 13 Solutions
Starting Out with C++ from Control Structures to Objects, Student Value Edition (9th Edition)
Ch. 13.3 - True or False: You must declare all private...Ch. 13.3 - Assume RetailItem is the name of a class, and the...Ch. 13.3 - An objects private member variables are accessed...Ch. 13.3 - Assume RetailItem is the name of a class, and the...Ch. 13.3 - Complete the following code skeleton to declare a...Ch. 13.6 - Why would you declare a classs member variables...Ch. 13.6 - When a classs member variables are declared...Ch. 13.6 - What is a class specification file? What is a...Ch. 13.6 - Prob. 13.9CPCh. 13.6 - Assume the following class components exist in a...
Ch. 13.6 - What is an inline member function?Ch. 13.9 - Briefly describe the purpose of a constructor.Ch. 13.9 - Prob. 13.13CPCh. 13.9 - A member function that is never declared with a...Ch. 13.9 - A member function that is never declared with a...Ch. 13.9 - Prob. 13.16CPCh. 13.9 - A constructor that requires no arguments is called...Ch. 13.9 - True or False: Constructors are never declared...Ch. 13.9 - True or False: Destructors are never declared with...Ch. 13.9 - Prob. 13.20CPCh. 13.12 - What will the following program display on the...Ch. 13.12 - What will the following program display on the...Ch. 13.12 - In your answer for Checkpoint 13.22, indicate for...Ch. 13.12 - Why would a member function be declared private?Ch. 13.12 - Define an array of three InventoryItem objects.Ch. 13.12 - Complete the following program so it defines an...Ch. 13.16 - Prob. 13.27CPCh. 13.16 - When designing an object-oriented application, who...Ch. 13.16 - How do you identify the potential classes in a...Ch. 13.16 - What are a classs responsibilities?Ch. 13.16 - What two questions should you ask to determine a...Ch. 13.16 - Will all of a classs actions always be directly...Ch. 13.16 - Look at the following description of a problem...Ch. 13 - What is the difference between a class and an...Ch. 13 - What is the difference between the following...Ch. 13 - What is the default access specification of class...Ch. 13 - Look at the following function header for a member...Ch. 13 - A contractor uses a blueprint to build a set of...Ch. 13 - What is a mutator function? What is an accessor...Ch. 13 - Is it a good idea to make member variables...Ch. 13 - Can you think of a good reason to avoid writing...Ch. 13 - Under what circumstances should a member function...Ch. 13 - What is a constructor? What is a destructor?Ch. 13 - What is a default constructor? Is it possible to...Ch. 13 - Is it possible to have more than one constructor?...Ch. 13 - If a class object is dynamically allocated in...Ch. 13 - When defining an array of class objects, how do...Ch. 13 - What are a classs responsibilities?Ch. 13 - How do you identify the classes in a problem...Ch. 13 - Programming: In programming, there are two most...Ch. 13 - ____________ programming is centered around...Ch. 13 - _________ programming is centered around objects.Ch. 13 - _____________ is an objects ability to contain and...Ch. 13 - In C++, the _________ is the construct primarily...Ch. 13 - A class is very similar to a(n) _____________.Ch. 13 - A(n) _________ is a key word inside a class...Ch. 13 - The default access specification of class members...Ch. 13 - The default access specification of a struct in...Ch. 13 - Defining a class object is often called the...Ch. 13 - Members of a class object may be accessed through...Ch. 13 - If you were writing the declaration of a class...Ch. 13 - If you were writing the external definitions of...Ch. 13 - When a member functions body is written inside a...Ch. 13 - A(n) __________ is automatically called when an...Ch. 13 - A(n) __________ is a member function with the same...Ch. 13 - __________ are useful for performing...Ch. 13 - Constructors cannot have a(n) _________ type.Ch. 13 - A(n) ___________ constructor is one that requires...Ch. 13 - A(n) ___________ is a member function that is...Ch. 13 - A destructor has the same name as the class, but...Ch. 13 - Like constructors, destructors cannot have a(n)...Ch. 13 - A constructor whose arguments all have default...Ch. 13 - A class may have more than one constructor, as...Ch. 13 - Prob. 41RQECh. 13 - A(n) __________ may be used to pass arguments to...Ch. 13 - Write a class declaration named Circle with a...Ch. 13 - Add a default: constructor to the Circle class in...Ch. 13 - Add an overloaded constructor to the Circle class...Ch. 13 - Write a statement that defines an array of five...Ch. 13 - Write a statement that defines an array of five...Ch. 13 - Prob. 48RQECh. 13 - If the items on the following list appeared in a...Ch. 13 - Look at the following description of a problem...Ch. 13 - T F Private members must be declared before public...Ch. 13 - T F Class members are private by default.Ch. 13 - T F Members of a struct are private by default.Ch. 13 - T F Classes and structures in C++ are very...Ch. 13 - T F All private members of a class must be...Ch. 13 - T F All public members of a class must be declared...Ch. 13 - T F It is legal to define a pointer to a class...Ch. 13 - T F You can use the new operator to dynamically...Ch. 13 - T F A private member function may be called from a...Ch. 13 - T F Constructors do not have to have the same name...Ch. 13 - T F Constructors may not have a return type.Ch. 13 - T F Constructors cannot take arguments.Ch. 13 - T F Destructors cannot take arguments.Ch. 13 - T F Destructors may return a value.Ch. 13 - T F Constructors may have default arguments.Ch. 13 - T F Member functions may be overloaded.Ch. 13 - T F Constructors may not be overloaded.Ch. 13 - T FA class may not have a constructor with no...Ch. 13 - T F A class may only have one destructor.Ch. 13 - T F When an array of objects is defined, the...Ch. 13 - T F To find the classes needed for an...Ch. 13 - T F A classs responsibilities are the things the...Ch. 13 - class Circle: { private double centerX; double...Ch. 13 - #include iostream using namespace std; Class Moon;...Ch. 13 - #inc1ude iostream using namespace std; class...Ch. 13 - class Change { public: int pennies; int nickels;...Ch. 13 - Date Design a class called Date. The class should...Ch. 13 - Employee Class Write a class named Employee that...Ch. 13 - Car Class Write a class named Car that has the...Ch. 13 - Patient Charges Write a class named Patient that...Ch. 13 - Retail Item Class Write a class named RetailItem...Ch. 13 - Inventor Class Design an Inventory class that can...Ch. 13 - TestScores Class Design a TestScores class that...Ch. 13 - Circle Class Write a Circle class that has the...Ch. 13 - Population In a population, the birth rate and...Ch. 13 - Number Array Class Design a class that has an...Ch. 13 - Payroll Class Design a PayRoll class that has data...Ch. 13 - Coin Toss Simulator Write a class named Coin. The...Ch. 13 - Tossing Coins for a Dollar For this assignment,...Ch. 13 - Fishing Game Simulation For this assignment, you...Ch. 13 - Mortgage Payment Design a class that will...Ch. 13 - Freezing and Boiling Points The following table...Ch. 13 - Cash Register Design a CashRegister class that can...Ch. 13 - A Game of 21 For this assignment, you will write a...Ch. 13 - Trivia Game In this programming challenge, you...Ch. 13 - Patient Fees 1. This program should be designed...
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