Starting Out with C++ from Control Structures to Objects (9th Edition)
9th Edition
ISBN: 9780134498379
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 15, Problem 7RQE
What is the difference between redefining a base class function and overriding a base class function?
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Change the following code so that there is always at least one way to get from the left corner to the top right, but the labyrinth is still randomized.
The player starts at the bottom left corner of the labyrinth. He has to get to the top right corner of the labyrinth as fast he can, avoiding a meeting with the evil dragon. Take care that the player and the dragon cannot start off on walls. Also the dragon starts off from a randomly chosen position
public class Labyrinth { private final int size; private final Cell[][] grid;
public Labyrinth(int size) { this.size = size; this.grid = new Cell[size][size]; generateLabyrinth(); }
private void generateLabyrinth() { Random rand = new Random(); for (int i = 0; i < size; i++) { for (int j = 0; j < size; j++) { // Randomly create walls and paths grid[i][j] = new Cell(rand.nextBoolean()); } } // Ensure start and end are…
Change the following code so that it checks the following 3 conditions:
1. there is no space between each cells (imgs)
2. even if it is resized, the components wouldn't disappear
3. The GameGUI JPanel takes all the JFrame space, so that there shouldn't be extra space appearing in the frame other than the game.
Main():
Labyrinth labyrinth = new Labyrinth(10);
Player player = new Player(9, 0); Dragon dragon = new Dragon(9, 9);
JFrame frame = new JFrame("Labyrinth Game"); GameGUI gui = new GameGUI(labyrinth, player, dragon);
frame.add(gui); frame.setSize(600, 600); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true);
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; //labyrinth, player, dragon are just public classes
private final ImageIcon playerIcon = new ImageIcon("data/images/player.png");…
Make the following game user friendly with GUI, with some simple graphics. The GUI should be in another seperate class, with some ImageIcon, and Game class should be added into the pane.
The following code works as this: The objective of the player is to escape from this labyrinth. The player starts at the bottom left corner of the labyrinth. He has to get to the top right corner of the labyrinth as fast he can, avoiding a meeting with the evil dragon. The player can move only in four directions: left, right, up or down. There are several escape paths in all labyrinths. The player’s character should be able to moved with the well known WASD keyboard buttons. If the dragon gets to a neighboring field of the player, then the player dies. Because it is dark in the labyrinth, the player can see only the neighboring fields at a distance of 3 units.
Cell Class:
public class Cell { private boolean isWall; public Cell(boolean isWall) { this.isWall = isWall; } public boolean isWall() { return…
Chapter 15 Solutions
Starting Out with C++ from Control Structures to Objects (9th Edition)
Ch. 15.1 - Here is the first line of a class declaration....Ch. 15.1 - What is the name of the derived class in the...Ch. 15.1 - Suppose a program has the following class...Ch. 15.2 - What is the difference between private members and...Ch. 15.2 - What is the difference between member access...Ch. 15.2 - Suppose a program has the following class...Ch. 15.3 - What will the following program display? #include...Ch. 15.3 - What will the following program display? #include...Ch. 15.7 - Explain the difference between overloading a...Ch. 15.7 - Prob. 15.10CP
Ch. 15.7 - Prob. 15.11CPCh. 15.7 - What will the following program display? #include...Ch. 15.7 - What will the following program display? #include...Ch. 15.7 - What will the following program display? #include...Ch. 15.7 - What will the following program display? #include...Ch. 15.8 - Does the following diagram depict multiple...Ch. 15.8 - Does the following diagram depict multiple...Ch. 15.8 - Examine the following classes. The table lists the...Ch. 15.8 - Examine the following class declarations: class...Ch. 15 - What is an is a relationship?Ch. 15 - A program uses two classes: Dog and Poodle. Which...Ch. 15 - How does base class access specification differ...Ch. 15 - What is the difference between a protected class...Ch. 15 - Can a derived class ever directly access the...Ch. 15 - Which constructor is called first, that of the...Ch. 15 - What is the difference between redefining a base...Ch. 15 - Prob. 8RQECh. 15 - What is an abstract base class?Ch. 15 - A program has a class Potato, which is derived...Ch. 15 - What base class is named in the line below?class...Ch. 15 - What derived class is named in the line below?...Ch. 15 - What is the class access specification of the base...Ch. 15 - What is the class access specification of the base...Ch. 15 - Protected members of a base class are like...Ch. 15 - Complete the table on the next page by filling in...Ch. 15 - Complete the table below by filling in private,...Ch. 15 - Complete the table below by filling in private,...Ch. 15 - A derived class inherits the ________ of its base...Ch. 15 - When both a base class and a derived class have...Ch. 15 - An overridden base class function may be called by...Ch. 15 - When a derived class redefines a function in a...Ch. 15 - A(n) __________ member function in a base class...Ch. 15 - ________ binding is when the compiler binds member...Ch. 15 - __________ binding is when a function call is...Ch. 15 - _________ is when member functions in a class...Ch. 15 - When a pointer to a base class is made to point to...Ch. 15 - A(n) __________ class cannot be instantiated.Ch. 15 - A(n) _______ function has no body, or definition,...Ch. 15 - A(n) _________ of inheritance is where one class...Ch. 15 - _______ is where a derived class has two or more...Ch. 15 - In multiple inheritance, the derived class should...Ch. 15 - Write the first line of the declaration for a...Ch. 15 - Write the first line of the declaration for a...Ch. 15 - Suppose a class named Tiger is derived from both...Ch. 15 - Write the declaration for class B. The classs...Ch. 15 - T F The base classs access specification affects...Ch. 15 - T F The base classs access specification affects...Ch. 15 - T F Private members of a private base class become...Ch. 15 - T F Public members of a private base class become...Ch. 15 - T F Protected members of a private base class...Ch. 15 - T F Public members of a protected base class...Ch. 15 - T F Private members of a protected base class...Ch. 15 - T F Protected members of a public base class...Ch. 15 - T F The base class constructor is called after the...Ch. 15 - T F The base class destructor is called after the...Ch. 15 - T F It isnt possible for a base class to have more...Ch. 15 - T F Arguments are passed to the base class...Ch. 15 - T F A member function of a derived class may not...Ch. 15 - Prob. 51RQECh. 15 - T F A base class may not be derived from another...Ch. 15 - class Car, public Vehicle { public: Car(); Car();...Ch. 15 - class Truck, public : Vehicle, protected {...Ch. 15 - class SnowMobile : Vehicle { protected: int...Ch. 15 - class Table : public Furniture { protected: int...Ch. 15 - class Tank : public Cylinder { private: int...Ch. 15 - class Three : public Two : public One { protected:...Ch. 15 - Employee and ProductionWorker Classes Design a...Ch. 15 - ShiftSupervisor Class In a particular factory, a...Ch. 15 - TeamLeader Class In a particular factory, a team...Ch. 15 - Prob. 4PCCh. 15 - Time Clock Design a class named TimeClock. The...Ch. 15 - Essay Class Design an Essay class that is derived...Ch. 15 - PersonData and CustoraerData Classes Design a...Ch. 15 - PreferredCustomer Class A retail store has a...Ch. 15 - File Filter A file filter reads an input file,...Ch. 15 - File Double-Spacer Create a derived class of the...Ch. 15 - Course Grades In a course, a teacher gives the...Ch. 15 - Ship. CruiseShip, and CargoShip Classes Design a...Ch. 15 - Pure Abstract Base Class Project Define a pure...Ch. 15 - Prob. 14PC
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